MAXWELL3D12.0BASICEXERCISES1.静电场问题实例:平板电容器电容计算仿真...........................................................................22.恒定电场问题实例:导体中的电流仿真...................................................................................43.恒定磁场问题实例:恒定磁场力矩计算...................................................................................84.参数扫描问题实例:恒定磁场力矩计算.................................................................................125.恒定磁场实例:三相变压器电感计算.....................................................................................216.永磁体磁化方向设置:局部坐标系的使用.............................................................................327.Master/Slave边界使用实例:直流无刷电机内磁场计算.......................................................388.涡流场分析实例........................................................................................................................459.涡流场问题实例:磁偶极子天线的近区场计算.....................................................................5310.瞬态场实例:TEAMWORKSHOPPROBLEM24.......................................................................591.静电场问题实例:平板电容器电容计算仿真平板电容器模型描述:上下两极板尺寸:25mm×25mm×2mm,材料:pec(理想导体)介质尺寸:25mm×25mm×1mm,材料:mica(云母介质)激励:电压源,上极板电压:5V,下极板电压:0V。要求计算该电容器的电容值1.建模(Model)Project>InsertMaxwell3DDesignFile>Saveas>PlanarCap(工程命名为“PlanarCap”)选择求解器类型:Maxwell>SolutionType>Electric>Electrostatic创建下极板六面体Draw>Box(创建下极板六面体)下极板起点:(X,Y,Z)>(0,0,0)坐标偏置:(dX,dY,dZ)>(25,25,0)坐标偏置:(dX,dY,dZ)>(0,0,2)将六面体重命名为DownPlateAssignMaterial>pec(设置材料为理想导体perfectconductor)创建上极板六面体Draw>Box(创建下极板六面体)上极板起点:(X,Y,Z)>(0,0,3)坐标偏置:(dX,dY,dZ)>(25,25,0)坐标偏置:(dX,dY,dZ)>(0,0,2)将六面体重命名为UpPlateAssignMaterial>pec(设置材料为理想导体perfectconductor)创建中间的介质六面体Draw>Box(创建下极板六面体)介质板起点:(X,Y,Z)>(0,0,2)坐标偏置:(dX,dY,dZ)>(25,25,0)坐标偏置:(dX,dY,dZ)>(0,0,1)将六面体重命名为mediumAssignMaterial>mica(设置材料为云母mica,也可以根据实际情况设置新材料)创建计算区域(Region)PaddingPercentage:0%忽略电场的边缘效应(fringingeffect)电容器中电场分布的边缘效应2.设置激励(AssignExcitation)选中上极板UpPlate,Maxwell3D>Excitations>Assign>Voltage>5V选中下极板DownPlate,Maxwell3D>Excitations>Assign>Voltage>0V3.设置计算参数(AssignExecutiveParameter)Maxwell3D>Parameters>Assign>Matrix>Voltage1,Voltage24.设置自适应计算参数(CreateAnalysisSetup)Maxwell3D>AnalysisSetup>AddSolutionSetup最大迭代次数:Maximumnumberofpasses>10误差要求:PercentError>1%每次迭代加密剖分单元比例:RefinementperPass>50%5.Check&Run6.查看结果Maxwell3D>Reselts>Solutiondata>Matrix电容值:31.543pF2.恒定电场问题实例:导体中的电流仿真恒定电场:导体中,以恒定速度运动的电荷产生的电场称为恒定电场,或恒定电流场(DCconduction)恒定电场的源:(1)VoltageExcitation,导体不同面上的电压(2)CurrentExcitations,施加在导体表面的电流(3)Sink(汇),一种吸收电流的设置,确保每个导体流入的电流等于流出的电流。只有在不使用VoltageExcitation时,才用Sink。保证DCconduction求解器:不计算导体外的电场,计算时,不考虑材料的介电常数参数。例:绘出如下图所示导体结...