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ANSYS Workbench 2024完全自学一本通 读者对象:本书工程实例丰富、讲解详尽,内容安排循序渐进、深入浅出,适合理工类院校的土木工程、机械工程、力学、电气工程等相关专业的本科生、研究生及教师阅读,并且可以作为相关工程技术人员从事工程研究的参考书。
本书针对ANSYS Workbench 2024 平台,详细介绍了其功能及应用。本书内容丰富且涉及领域较广,读者在掌握软件操作的同时可以掌握解决相关工程领域实际问题的思路与方法,并自如地解决本领域所出现的问题。全书分为4 篇,共20 章,第1 篇从有限元分析着手,讲解工程问题的数学物理方程及ANSYS Workbench平台的基础应用知识;第2 篇以基础范例为指导,讲解结构静力学分析、模态分析、谐响应分析、响应谱分析、随机振动分析及瞬态动力学分析;第3 篇作为进阶部分,讲解接触分析、显式动力学分析、线性屈曲分析、疲劳分析及压电分析;第4 篇以项目范例为指导,讲解稳态热力学分析、瞬态热力学分析、计算流体动力学分析、电场分析及磁场分析。本书配套资源中附赠两篇内容,其中一篇作为高级应用篇,讲解结构优化分析、复合材料分析、APDL 编程与分析、声学分析及非线性分析;另一篇主要讲解多物理场耦合分析,包括电磁振动分析、电磁热分析、单双向流固耦合分析及电磁噪声分析等。
许进峰,毕业于北京航空航天大学,就职于航天科技集团,高级工程师。从事光机结构设计、精密机械设计工作。熟练掌握相关有限元分析软件,已从事机械设计及仿真计算工作十余年。精通ANSYS、Matlab、UG、Pro/Engineer等软件。
第1 篇
第1 章 有限元分析概述 ···································································································.1 1.1 有限元法发展综述 ··································································································.2 1.1.1 有限元法的孕育和发展 ···················································································.2 1.1.2 有限元法的基本思想 ······················································································.3 1.1.3 有限元法的发展趋势 ······················································································.4 1.2 工程问题的数学物理方程 ·························································································.6 1.2.1 工程问题的数学物理方程(控制方程)概述 ························································.6 1.2.2 变分函数 ·····································································································.9 1.2.3 插值函数 ···································································································.10 1.2.4 形函数 ······································································································.10 1.2.5 刚度矩阵 ···································································································.10 1.2.6 连通性 ······································································································.11 1.2.7 边界条件 ···································································································.11 1.2.8 圆柱坐标系中的问题 ····················································································.12 1.2.9 直接方法 ···································································································.12 1.3 有限元法的解题步骤 ·····························································································.13 1.4 本章小结 ············································································································.13 第2 章 几何建模 ···········································································································.14 2.1 ANSYS Workbench 平台及模块 ················································································.15 2.1.1 ANSYS Workbench 平台主界面 ······································································.15 2.1.2 菜单栏 ······································································································.16 2.1.3 工具栏 ······································································································.22 2.1.4 “工具箱”窗格 ··························································································.23 2.2 几何建模概述 ······································································································.27 2.2.1 几何建模平台 ·····························································································.27 2.2.2 菜单栏 ······································································································.27 2.2.3 工具栏 ······································································································.35 2.2.4 常用命令栏 ································································································.37 2.2.5 “树轮廓”窗格 ··························································································.37 2.2.6 几何建模实例——连接扣 ··············································································.39 2.3 本章小结 ············································································································.48 第3 章 网格划分 ···········································································································.49 3.1 网格划分概述 ······································································································.50 3.1.1 网格划分适用领域 ·······················································································.50 3.1.2 网格划分方法 ·····························································································.50 3.1.3 网格默认设置 ·····························································································.53 3.1.4 网格尺寸设置 ·····························································································.53 3.1.5 网格质量设置 ·····························································································.55 3.1.6 网格膨胀设置 ·····························································································.60 3.1.7 网格高级选项设置 ·······················································································.62 3.1.8 网格统计设置 ·····························································································.62 3.2 网格划分实例 ······································································································.63 3.2.1 实例1——网格尺寸控制 ···············································································.63 3.2.2 实例2——扫掠网格划分 ···············································································.70 3.2.3 实例3——多区域网格划分 ············································································.73 3.2.4 实例4——CDB 网格导入 ··············································································.77 3.2.5 实例5——BDF 网格导入 ··············································································.81 3.3 本章小结 ············································································································.83 第4 章 后处理 ··············································································································.84 4.1 后处理概述 ·········································································································.85 4.1.1 查看结果 ···································································································.85 4.1.2 显示结果 ···································································································.88 4.1.3 显示变形 ···································································································.88 4.1.4 应力和应变 ································································································.89 4.1.5 接触结果 ···································································································.90 4.1.6 显示自定义结果 ··························································································.91 4.2 实例分析 ············································································································.91 4.2.1 问题描述 ···································································································.92 4.2.2 创建分析项目 ·····························································································.92 4.2.3 导入几何体 ································································································.92 4.2.4 添加材料库 ································································································.93 4.2.5 添加模型材料属性 ·······················································································.94 4.2.6 划分网格 ···································································································.95 4.2.7 施加载荷与约束 ··························································································.96 2.2.4 常用命令栏 ································································································.37 2.2.5 “树轮廓”窗格 ··························································································.37 2.2.6 几何建模实例——连接扣 ··············································································.39 2.3 本章小结 ············································································································.48 第3 章 网格划分 ···········································································································.49 3.1 网格划分概述 ······································································································.50 3.1.1 网格划分适用领域 ·······················································································.50 3.1.2 网格划分方法 ·····························································································.50 3.1.3 网格默认设置 ·····························································································.53 3.1.4 网格尺寸设置 ·····························································································.53 3.1.5 网格质量设置 ·····························································································.55 3.1.6 网格膨胀设置 ·····························································································.60 3.1.7 网格高级选项设置 ·······················································································.62 3.1.8 网格统计设置 ·····························································································.62 3.2 网格划分实例 ······································································································.63 3.2.1 实例1——网格尺寸控制 ···············································································.63 3.2.2 实例2——扫掠网格划分 ···············································································.70 3.2.3 实例3——多区域网格划分 ············································································.73 3.2.4 实例4——CDB 网格导入 ··············································································.77 3.2.5 实例5——BDF 网格导入 ··············································································.81 3.3 本章小结 ············································································································.83 第4 章 后处理 ··············································································································.84 4.1 后处理概述 ·········································································································.85 4.1.1 查看结果 ···································································································.85 4.1.2 显示结果 ···································································································.88 4.1.3 显示变形 ···································································································.88 4.1.4 应力和应变 ································································································.89 4.1.5 接触结果 ···································································································.90 4.1.6 显示自定义结果 ··························································································.91 4.2 实例分析 ············································································································.91 4.2.1 问题描述 ···································································································.92 4.2.2 创建分析项目 ·····························································································.92 4.2.3 导入几何体 ································································································.92 4.2.4 添加材料库 ································································································.93 4.2.5 添加模型材料属性 ·······················································································.94 4.2.6 划分网格 ···································································································.95 4.2.7 施加载荷与约束 ··························································································.96 5.4.6 划分网格 ··································································································.128 5.4.7 施加载荷与约束 ·························································································.129 5.4.8 结果后处理 ·······························································································.130 5.4.9 保存与退出 ·······························································································.132 5.4.10 读者演练 ································································································.132 5.5 本章小结 ···········································································································.132 第6 章 模态分析 ··········································································································.133 6.1 结构动力学分析概述 ····························································································.134 6.1.1 结构动力学分析 ·························································································.134 6.1.2 结构动力学分析的阻尼 ················································································.134 6.2 模态分析概述 ·····································································································.135 6.2.1 模态分析简介 ····························································································.135 6.2.2 模态分析基础 ····························································································.136 6.2.3 预应力模态分析 ·························································································.136 6.3 实例1——方板模态分析 ·······················································································.136 6.3.1 问题描述 ··································································································.136 6.3.2 创建分析项目 ····························································································.137 6.3.3 创建几何体 ·······························································································.137 6.3.4 添加材料库 ·······························································································.137 6.3.5 添加模型材料属性 ······················································································.139 6.3.6 划分网格 ··································································································.140 6.3.7 施加载荷与约束 ·························································································.140 6.3.8 结果后处理 ·······························································································.141 6.3.9 保存与退出 ·······························································································.144 6.4 实例2——方板在有预压力下的模态分析 ··································································.144 6.4.1 问题描述 ··································································································.144 6.4.2 创建分析项目 ····························································································.144 6.4.3 创建几何体 ·······························································································.145 6.4.4 添加材料库 ·······························································································.145 6.4.5 添加模型材料属性 ······················································································.147 6.4.6 划分网格 ··································································································.148 6.4.7 施加载荷与约束 ·························································································.148 6.4.8 进行模态分析 ····························································································.150 6.4.9 结果后处理 ·······························································································.150 6.4.10 保存与退出 ·····························································································.152 6.5 实例3——方板在有预拉力下的模态分析 ··································································.152 6.5.1 问题描述 ··································································································.152 6.5.2 修改外载荷数据 ·························································································.152 6.5.3 进行模态分析 ····························································································.153 6.5.4 结果后处理 ·······························································································.153 6.5.5 保存与退出 ·······························································································.154 6.5.6 结论 ········································································································.155 6.6 实例4——方板在有阻尼下的模态分析 ·····································································.155 6.6.1 问题描述 ··································································································.155 6.6.2 进行模态分析 ····························································································.155 6.6.3 结果后处理 ·······························································································.156 6.6.4 保存与退出 ·······························································································.157 6.7 本章小结 ···········································································································.157 第7 章 谐响应分析 ·······································································································.158 7.1 谐响应分析概述 ··································································································.159 7.1.1 谐响应分析简介 ·························································································.159 7.1.2 谐响应分析的载荷与输出 ·············································································.159 7.1.3 谐响应分析通用方程 ···················································································.160 7.2 实例1——梁单元谐响应分析 ·················································································.160 7.2.1 问题描述 ··································································································.160 7.2.2 创建分析项目 ····························································································.160 7.2.3 创建模态分析项目 ······················································································.161 7.2.4 材料选择 ··································································································.162 7.2.5 施加载荷与约束 ·························································································.162 7.2.6 模态求解 ··································································································.164 7.2.7 结果后处理(1) ·······················································································.164 7.2.8 创建谐响应分析项目 ···················································································.166 7.2.9 施加载荷与约束 ·························································································.166 7.2.10 谐响应计算 ·····························································································.168 7.2.11 结果后处理(2) ······················································································.168 7.2.12 保存与退出 ·····························································································.171 7.3 实例2——实体谐响应分析 ····················································································.171 7.3.1 问题描述 ··································································································.171 7.3.2 创建分析项目 ····························································································.171 7.3.3 材料选择 ··································································································.172 7.3.4 施加载荷与约束 ·························································································.173 7.3.5 模态求解 ··································································································.174 7.3.6 结果后处理(1) ·······················································································.174 7.3.7 进行谐响应分析 ·························································································.176 7.3.8 谐响应计算 ·······························································································.177 7.3.9 结果后处理(2) ·······················································································.177 7.3.10 保存与退出 ·····························································································.179 7.4 实例3——含阻尼的谐响应分析 ··············································································.179 7.5 本章小结 ···········································································································.181 第8 章 响应谱分析 ·······································································································.182 8.1 响应谱分析概述 ··································································································.183 8.1.1 频谱的定义 ·······························································································.183 8.1.2 响应谱分析的基本概念 ················································································.184 8.2 实例1——梁单元响应谱分析 ·················································································.185 8.2.1 问题描述 ··································································································.186 8.2.2 创建分析项目 ····························································································.186 8.2.3 导入几何体 ·······························································································.187 8.2.4 进行静力学分析 ·························································································.187 8.2.5 添加材料库 ·······························································································.187 8.2.6 接触设置 ··································································································.187 8.2.7 完成网格划分 ····························································································.189 8.2.8 施加约束 ··································································································.189 8.2.9 进行模态分析 ····························································································.191 8.2.10 结果后处理(1) ······················································································.191 8.2.11 进行响应谱分析 ·······················································································.192 8.2.12 添加加速度频谱 ·······················································································.193 8.2.13 结果后处理(2) ······················································································.194 8.2.14 其他设置 ································································································.195 8.2.15 保存与退出 ·····························································································.196 8.3 实例2——建筑物响应谱分析 ·················································································.196 8.3.1 问题描述 ··································································································.197 8.3.2 创建分析项目 ····························································································.197 8.3.3 导入几何体 ·······························································································.198 8.3.4 进行静力学分析 ·························································································.198 8.3.5 添加材料库 ·······························································································.199 8.3.6 划分网格 ··································································································.199 8.3.7 施加曲面约束 ····························································································.199 8.3.8 施加固定约束 ····························································································.200 8.3.9 进行模态分析 ····························································································.201 8.3.10 结果后处理(1) ······················································································.201 8.3.11 进行响应谱分析 ·······················································································.202 8.3.12 添加加速度频谱 ·······················································································.203 8.3.13 结果后处理(2) ······················································································.205 8.3.14 保存与退出 ·····························································································.207 8.4 本章小结 ···········································································································.207 第9 章 随机振动分析 ···································································································.208 9.1 随机振动分析概述 ·······························································································.209 9.2 实例1——梁单元随机振动分析 ··············································································.210 9.2.1 问题描述 ··································································································.210 9.2.2 创建分析项目 ····························································································.210 9.2.3 导入几何体 ·······························································································.211 9.2.4 进行静力学分析 ·························································································.211 9.2.5 添加材料库 ·······························································································.212 9.2.6 接触设置 ··································································································.212 9.2.7 完成网格划分 ····························································································.213 9.2.8 施加约束 ··································································································.213 9.2.9 进行模态分析 ····························································································.215 9.2.10 结果后处理(1) ······················································································.215 9.2.11 进行随机振动分析 ····················································································.217 9.2.12 添加加速度频谱 ·······················································································.217 9.2.13 结果后处理(2) ······················································································.218 9.2.14 保存与退出 ·····························································································.219 9.3 实例2——建筑物随机振动分析 ··············································································.220 9.3.1 问题描述 ··································································································.220 9.3.2 创建分析项目 ····························································································.220 9.3.3 导入几何体 ·······························································································.220 9.3.4 进行静力学分析 ·························································································.221 9.3.5 添加材料库 ·······························································································.221 9.3.6 划分网格 ··································································································.221 9.3.7 施加曲面约束 ····························································································.222 9.3.8 施加固定约束 ····························································································.222 9.3.9 进行模态分析 ····························································································.224 9.3.10 结果后处理(1) ······················································································.224 9.3.11 进行随机振动分析 ····················································································.225 9.3.12 添加加速度频谱 ·······················································································.226 9.3.13 结果后处理(2) ······················································································.228 9.3.14 保存与退出 ·····························································································.229 9.4 本章小结 ···········································································································.229 第10 章 瞬态动力学分析 ······························································································.230 10.1 瞬态动力学分析概述 ··························································································.231 10.2 实例1——钢结构地震分析 ···················································································.231 10.2.1 问题描述 ································································································.231 10.2.2 创建分析项目 ··························································································.232 10.2.3 创建几何体 ·····························································································.233 10.2.4 进行瞬态动力学分析 ·················································································.233 10.2.5 添加材料库 ·····························································································.234 10.2.6 划分网格 ································································································.234 10.2.7 施加约束 ································································································.235 10.2.8 结果后处理 ·····························································································.237 10.2.9 保存与退出 ·····························································································.239 10.3 实例2——震动分析 ····························································································.239 10.3.1 问题描述 ································································································.239 10.3.2 创建分析项目 ··························································································.239 10.3.3 导入几何体 ·····························································································.240 10.3.4 进行模态分析 ··························································································.240 10.3.5 划分网格 ································································································.241 10.3.6 施加约束 ································································································.242 10.3.7 结果后处理(1) ······················································································.243 10.3.8 进行瞬态动力学分析 ·················································································.244 10.3.9 添加动态力载荷 ·······················································································.245 10.3.10 结果后处理(2) ····················································································.247 10.3.11 保存与退出 ····························································································.248 10.4 本章小结 ·········································································································.248 第3 篇 第11 章 接触分析 ········································································································.249 11.1 接触分析概述 ···································································································.250 11.2 实例——铝合金板孔受力分析 ···············································································.251 11.2.1 问题描述 ································································································.252 11.2.2 创建分析项目 ··························································································.252 11.2.3 创建几何体 ·····························································································.252 11.2.4 添加材料库 ·····························································································.254 11.2.5 添加模型材料属性 ····················································································.255 11.2.6 创建接触 ································································································.255 11.2.7 划分网格 ································································································.255 11.2.8 施加载荷与约束 ·······················································································.257 11.2.9 结果后处理 ·····························································································.258 11.2.10 保存与退出 ····························································································.259 11.3 本章小结 ·········································································································.259 第12 章 显式动力学分析 ······························································································.260 12.1 显式动力学分析概述 ··························································································.261 12.2 实例1——钢球撞击金属网分析 ·············································································.262 12.2.1 问题描述 ································································································.262 12.2.2 创建分析项目A ·······················································································.262 12.2.3 启动Workbench LS-DYNA 软件,创建分析项目B ···········································.263 12.2.4 材料选择 ································································································.263 12.2.5 材料赋予 ································································································.264 12.2.6 分析前处理 ·····························································································.265 12.2.7 施加载荷 ································································································.265 12.2.8 结果后处理 ·····························································································.267 12.2.9 保存与退出 ·····························································································.270 12.3 实例2——金属块穿透钢板分析 ·············································································.270 12.3.1 问题描述 ································································································.270 12.3.2 创建分析项目 ··························································································.270 12.3.3 导入几何体 ·····························································································.271 12.3.4 添加材料库 ·····························································································.271 12.3.5 添加材料 ································································································.272 12.3.6 显式动力学分析前处理 ··············································································.273 12.3.7 施加约束 ································································································.274 12.3.8 结果后处理 ·····························································································.276 12.3.9 启动Autodyn 软件 ····················································································.277 12.3.10 保存与退出 ····························································································.279 12.4 本章小结 ·········································································································.279 第13 章 线性屈曲分析 ··································································································.280 13.1 线性屈曲分析概述 ·····························································································.281 13.1.1 线性屈曲分析简介 ····················································································.281 13.1.2 线性屈曲分析方程 ····················································································.281 13.2 实例1——钢管线性屈曲分析 ················································································.281 13.2.1 问题描述 ································································································.282 13.2.2 创建分析项目 ··························································································.282 13.2.3 创建几何体 ·····························································································.282 13.2.4 设置材料 ································································································.284 13.2.5 添加模型材料属性 ····················································································.284 13.2.6 划分网格 ································································································.284 13.2.7 施加载荷与约束(1) ················································································.286 13.2.8 结果后处理 ·····························································································.287 13.2.9 进行线性屈曲分析 ····················································································.289 13.2.10 施加载荷与约束(2) ··············································································.289 13.2.11 结果后处理 ····························································································.290 13.2.12 保存与退出 ····························································································.293 13.3 实例2——金属容器线性屈曲分析 ··········································································.293 13.3.1 问题描述 ································································································.293 13.3.2 创建分析项目 ··························································································.293 13.3.3 创建几何体 ·····························································································.294 13.3.4 设置材料 ································································································.296 13.3.5 添加模型材料属性 ····················································································.296 13.3.6 划分网格 ································································································.296 13.3.7 施加载荷与约束(1) ················································································.297 13.3.8 结果后处理 ·····························································································.299 13.3.9 进行线性屈曲分析 ····················································································.300 13.3.10 施加载荷与约束(2) ··············································································.300 13.3.11 结果后处理 ····························································································.301 13.3.12 保存与退出 ····························································································.303 13.4 实例3——梁结构线性屈曲分析 ·············································································.303 13.4.1 问题描述 ································································································.304 13.4.2 创建分析项目 ··························································································.304 13.4.3 导入几何体 ·····························································································.304 13.4.4 进行静力学分析 ·······················································································.305 13.4.5 添加材料库 ·····························································································.305 13.4.6 接触设置 ································································································.305 13.4.7 划分网格 ································································································.306 13.4.8 施加约束与结果后处理 ··············································································.307 13.4.9 进行线性屈曲分析 ····················································································.308 13.4.10 结果后处理 ····························································································.309 13.4.11 保存与退出 ····························································································.311 13.5 本章小结 ·········································································································.312 第14 章 疲劳分析 ········································································································.313 14.1 疲劳分析概述 ···································································································.314 14.2 疲劳分析方法 ···································································································.315 14.2.1 疲劳程序 ································································································.315 14.2.2 应力-寿命曲线·························································································.316 14.2.3 疲劳材料特性 ··························································································.317 14.3 实例1——座椅疲劳分析 ······················································································.317 14.3.1 问题描述 ································································································.317 14.3.2 创建分析项目 ··························································································.318 14.3.3 导入几何体 ·····························································································.318 14.3.4 添加材料库 ·····························································································.319 14.3.5 添加模型材料属性 ····················································································.320 14.3.6 划分网格 ································································································.321 14.3.7 施加载荷与约束 ·······················································································.321 14.3.8 结果后处理 ·····························································································.323 14.3.9 保存文件 ································································································.325 14.3.10 添加疲劳分析命令 ···················································································.325 14.3.11 保存与退出 ····························································································.327 14.4 实例2——板模型疲劳分析 ···················································································.328 14.4.1 问题描述 ································································································.329 14.4.2 创建分析项目 ··························································································.329 14.4.3 导入几何体 ·····························································································.329 14.4.4 添加材料库 ·····························································································.330 14.4.5 添加模型材料属性 ····················································································.330 14.4.6 划分网格 ································································································.330 14.4.7 施加载荷与约束 ·······················································································.331 14.4.8 结果后处理 ·····························································································.333 14.4.9 保存文件 ································································································.333 14.4.10 添加疲劳分析命令 ···················································································.333 14.4.11 保存与退出 ····························································································.335 14.5 本章小结 ·········································································································.335 第15 章 压电分析 ········································································································.336 15.1 压电材料的基本知识 ··························································································.337 15.1.1 压电材料的概念 ·······················································································.337 15.1.2 压电材料的主要特性 ·················································································.337 15.1.3 压电材料的分类 ·······················································································.338 15.1.4 压电材料的应用 ·······················································································.340 15.1.5 压电复合材料的有限元分析方法 ··································································.342 15.1.6 基本耦合公式 ··························································································.342 15.1.7 压电材料的主要参数 ·················································································.342 15.2 压电分析模块的安装 ··························································································.345 15.3 实例1——正压电分析 ·························································································.347 15.3.1 问题描述 ································································································.347 15.3.2 创建分析项目 ··························································································.347 15.3.3 导入几何体 ·····························································································.348 15.3.4 添加材料库 ·····························································································.348 15.3.5 创建静态分析项目 ····················································································.348 15.3.6 网格与属性 ·····························································································.349 15.3.7 施加载荷与约束 ·······················································································.350 15.3.8 结果后处理 ·····························································································.351 15.3.9 保存与退出 ·····························································································.352 15.4 实例2——逆压电分析 ·························································································.352 15.4.1 问题描述 ································································································.353 15.4.2 创建分析项目 ··························································································.353 15.4.3 导入几何体 ·····························································································.353 15.4.4 添加材料库 ·····························································································.354 15.4.5 创建静态分析项目 ····················································································.354 15.4.6 网格与属性 ·····························································································.354 15.4.7 施加载荷与约束 ·······················································································.356 15.4.8 结果后处理 ·····························································································.357 15.4.9 保存与退出 ·····························································································.359 15.5 本章小结 ·········································································································.359 第4 篇 第16 章 稳态热力学分析 ······························································································.360 16.1 稳态热力学分析概述 ··························································································.361 16.1.1 热力学分析目的 ·······················································································.361 16.1.2 稳态热力学分析方程 ·················································································.361 16.1.3 基本热传递方式 ·······················································································.361 16.2 实例1——热传导分析 ·························································································.362 16.2.1 问题描述 ································································································.362 16.2.2 创建分析项目A ·······················································································.362 16.2.3 导入几何体 ·····························································································.363 16.2.4 创建分析项目B ·······················································································.363 16.2.5 添加材料库 ·····························································································.364 16.2.6 添加模型材料属性 ····················································································.365 16.2.7 划分网格 ································································································.366 16.2.8 施加载荷与约束 ·······················································································.367 16.2.9 结果后处理 ·····························································································.368 16.2.10 保存与退出 ····························································································.370 16.3 实例2——热对流分析 ·························································································.370 16.3.1 问题描述 ································································································.370 16.3.2 创建分析项目A ·······················································································.370 16.3.3 导入几何体 ·····························································································.370 16.3.4 创建分析项目B ·······················································································.371 16.3.5 添加材料库 ·····························································································.372 16.3.6 添加模型材料属性 ····················································································.373 16.3.7 划分网格 ································································································.374 16.3.8 施加载荷与约束 ·······················································································.374 16.3.9 结果后处理 ·····························································································.376 16.3.10 保存与退出 ····························································································.377 16.3.11 读者演练 ·······························································································.377 16.4 实例3——热辐射分析 ·························································································.378 16.4.1 实例介绍 ································································································.378 16.4.2 创建分析项目 ··························································································.378 16.4.3 添加模型材料属性 ····················································································.378 16.4.4 创建几何体 ·····························································································.379 16.4.5 划分网格 ································································································.379 16.4.6 定义载荷 ································································································.381 16.4.7 结果后处理 ·····························································································.383 16.4.8 保存并退出 ·····························································································.384 16.5 本章小结 ·········································································································.384 第17 章 瞬态热力学分析 ······························································································.385 17.1 瞬态热力学分析简介 ··························································································.386 17.2 实例1——散热片瞬态热力学分析 ··········································································.386 17.2.1 问题描述 ································································································.386 17.2.2 创建分析项目 ··························································································.386 17.2.3 创建瞬态热分析项目 ·················································································.387 17.2.4 施加载荷与约束 ·······················································································.387 17.2.5 结果后处理 ·····························································································.387 17.2.6 保存与退出 ·····························································································.388 17.3 实例2——高温钢块瞬态热力学分析 ·······································································.388 17.3.1 问题描述 ································································································.388 17.3.2 创建分析项目 ··························································································.389 17.3.3 定义材料 ································································································.389 17.3.4 施加载荷与约束 ·······················································································.390 17.3.5 结果后处理 ·····························································································.392 17.3.6 保存与退出 ·····························································································.393 17.4 本章小结 ·········································································································.393 第18 章 计算流体动力学分析 ························································································.394 18.1 计算流体动力学概述 ··························································································.395 18.1.1 CFD 简介 ································································································.395 18.1.2 CFD 基础 ································································································.398 18.2 实例1——CFX 流场分析 ·····················································································.405 18.2.1 问题描述 ································································································.406 18.2.2 创建分析项目 ··························································································.406 18.2.3 导入几何体 ·····························································································.406 18.2.4 前处理设置 ·····························································································.407 18.2.5 初始化及求解控制 ····················································································.412 18.2.6 流体计算 ································································································.414 18.2.7 结果后处理 ·····························································································.415 18.3 实例2——Fluent 流场分析 ···················································································.417 18.3.1 问题描述 ································································································.418 18.3.2 启动平台与保存文件 ·················································································.418 18.3.3 导入几何体 ·····························································································.418 18.3.4 网格划分 ································································································.419 18.3.5 进入Fluent 平台 ·······················································································.420 18.3.6 选择材料 ································································································.423 18.3.7 设置几何体属性 ·······················································································.423 18.3.8 设置流体边界条件 ····················································································.424 18.3.9 设置求解器 ·····························································································.425 18.3.10 结果后处理 ····························································································.427 18.3.11 Post 后处理 ····························································································.428 18.4 实例3——Icepak 流场分析 ···················································································.431 18.4.1 问题描述 ································································································.434 18.4.2 启动平台与保存文件 ·················································································.434 18.4.3 导入几何体 ·····························································································.434 18.4.4 添加Icepak 模块 ·······················································································.435 18.4.5 设置热源 ································································································.438 18.4.6 求解分析 ································································································.439 18.4.7 Post 后处理 ·····························································································.441 18.4.8 静力学分析 ·····························································································.443 18.5 本章小结 ·········································································································.445 第19 章 电场分析 ········································································································.446 19.1 电磁场基本理论 ································································································.447 19.1.1 麦克斯韦方程组 ·······················································································.447 19.1.2 一般形式的电磁场偏微分方程 ·····································································.448 19.1.3 电磁场中的常见边界条件 ···········································································.449 19.1.4 ANSYS Workbench 平台电磁场分析 ······························································.450 19.1.5 Ansoft 系列软件电磁场分析 ········································································.450 19.2 实例1——平行极板电容器的电容值计算 ·································································.451 19.2.1 创建分析项目 ··························································································.451 19.2.2 创建几何体 ·····························································································.452 19.2.3 创建求解器 ·····························································································.453 19.2.4 添加材料 ································································································.453 19.2.5 网格划分 ································································································.453 19.2.6 求解计算 ································································································.454 19.2.7 手动计算电容值 ·······················································································.455 19.2.8 保存与退出 ·····························································································.456 19.3 实例2——并联电容器的电容值计算 ·······································································.456 19.3.1 创建分析项目 ··························································································.456 19.3.2 创建几何体 ·····························································································.457 19.3.3 创建求解器 ·····························································································.458 19.3.4 添加材料 ································································································.459 19.3.5 网格划分 ································································································.459 19.3.6 求解计算 ································································································.461 19.3.7 手动计算电容值 ·······················································································.461 19.3.8 保存与退出 ·····························································································.462 19.4 本章小结 ·········································································································.462 第20 章 磁场分析 ········································································································.463 20.1 电磁场基本理论 ································································································.464 20.2 静态磁场分析实例1——导体磁场计算 ····································································.464 20.2.1 创建分析项目 ··························································································.465 20.2.2 创建几何体 ·····························································································.465 20.2.3 创建求解器 ·····························································································.466 20.2.4 添加材料 ································································································.466 20.2.5 边界条件与激励 ·······················································································.467 20.2.6 求解计算 ································································································.468 20.2.7 图表显示 ································································································.470 20.2.8 保存与退出 ·····························································································.471 20.3 静态磁场分析实例2——电感计算 ··········································································.471 20.3.1 创建分析项目 ··························································································.471 20.3.2 创建几何体 ·····························································································.472 20.3.3 创建求解器 ·····························································································.472 20.3.4 添加材料 ································································································.473 20.3.5 网格划分 ································································································.474 20.3.6 求解计算 ································································································.475 20.3.7 计算互感系数 ··························································································.476 20.3.8 保存与退出 ·····························································································.477 20.4 涡流磁场分析实例——金属块涡流损耗 ···································································.477 20.4.1 创建分析项目 ··························································································.477 20.4.2 导入几何体 ·····························································································.478 20.4.3 创建求解器 ·····························································································.478 20.4.4 添加材料 ································································································.479 20.4.5 边界条件设定 ··························································································.479 20.4.6 求解计算 ································································································.480 20.4.7 计算涡流损耗 ··························································································.482 20.4.8 损耗计算应用 ··························································································.483 20.4.9 保存与退出 ·····························································································.483 20.5 本章小结 ·········································································································.484
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