COMSOL多物理场建模

仿真智领创新Simulatinginspiresinnovation10:40-11:30软件功能介绍、抽奖14:00-16:30案例操作仿真智领创新Simulatinginspiresinnovation中仿科技2012年9月COMSOLMultiphysics多物理场建模技术部仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation目标建模思路模拟流程多物理场耦合前、后处理操作仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation模拟过程分析问题，确定PDE方程及相关的参数选择模型方程创建或导入几何模型设定材料属性及PDE系数项设定边界条件生成网格求解(设定Solver参数)后处理，结果可视化、动画、输出其他处理过程脚本后处理或二次开发仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation问题描述直流变压器上的母线板连接器，螺栓1和螺栓2之间通电流，会导致母线板产生焦耳热，从而导致热膨胀，产生变形，问题进一步扩展考虑冷却过程钛螺栓2钛螺栓1铜基板仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation应用模式焦耳热物理场：温度、电势结构力学物理场：位移流体流动物理场：压强(速度场)C()puTkTQ仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结果分析温度分布电流密度分布仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结果分析热膨胀变形空气对流降温仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结果分析几何参数扫描网格参数扫描仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation1.焦耳热分析2.焦耳热+热膨胀3.焦耳热+流体4.焦耳热+参数化几何扫描分析5.焦耳热+网格解析度扫描分析分析步骤仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation建模步骤注：弹出窗口用右键单击调出仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation选择应用模式3D焦耳热稳态仿真智领创新SimulatinginspiresinnovationL0.09[m]rad_l6e-3[m]tbb5e-3[m]wbb5e-2[m]mh6e-3[m]htc3[W/m^2/K]Vtot20[mV]全局变量定义仿真智领创新Simulatinginspiresinnovation设定xz工作平面几何建模仿真智领创新Simulatinginspiresinnovation第一个矩形第二个矩形新增矩形几何建模仿真智领创新Simulatinginspiresinnovation两个矩形绘图结果几何建模仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模矩形差集运算仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模母线板侧面图仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模第一个圆角处理第二个圆角仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模母线板侧面图昀终结果仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模母线板侧面图拉伸仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模拉伸后几何结构缩放至视窗大小仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模新增工作平面：面平行仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓1截面：圆形仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓1截面：拉伸仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模基板上绘制好螺栓1仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模新增工作平面：面平行仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓2截面：圆形仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓2截面：复制&平移仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓2截面仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模螺栓2截面：拉伸仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation几何建模昀终母线板结构仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation选择材料选择铜和钛并新增至模型仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation选择材料不同的材料分别定义不同的求解域基板螺栓仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定电势边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定边界43为电势边界：Vtot仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定接地边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定边界８,15为接地边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定新增热通量边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation焦耳热边界设定热通量边界设定：选择除边界8,15,43以外剩余边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation网格剖分自由四面体网格单元昀大尺寸：mh仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation网格划分结果仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation计算计算表面温度分布仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation后处理新增3D绘图组23D绘图组2增加面图仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation后处理3D绘图组2选择电流密度仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation后处理修改昀大值为：1e6仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation保存结果保存文件为busbar.mph，后面对该文件进行扩展分析仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation分析步骤1.焦耳热分析2.焦耳热+热膨胀3.焦耳热+流体4.焦耳热+参数化几何扫描分析5.焦耳热+网格解析度扫描分析仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation打开焦耳热模型仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation新增结构力学应用模式新增结构力学，然后直接点击完成仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结构力学材料属性包含热膨胀：耦合过程仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结构力学边界设定新增固定边界仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation结构力学边界设定固定边界：8,15,43仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation新增求解序列新增稳态求解序列仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation求解序列设定稳态1只计算焦耳热稳态2只计算热膨胀仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation求解仿真智领创新Simulatinginspiresinnovation仿真智领创新Simulatinginspiresinnovation后处理新增3D绘图组33D绘图组3新增面图仿真智领创新Simulatinginspiresinnovation仿真智领创新Sim