ansys上机练习实例

练习一梁的有限元建模与变形分析计算分析模型如图1-1所示,习题文件名:beam。NOTE:要求选择不同形状的截面分别进行计算。10m梁承受均布载荷：1.0e5Pa图1-1梁的计算分析模型梁截面分别采用以下三种截面（单位：m）：矩形截面：圆截面：工字形截面：B=0.1,H=0.15R=0.1w1=0.1，w2=0.1，w3=0.2,t1=0.0114，t2=0.0114，t3=0.0071.1进入ANSYS程序→ANSYSED→Interactive→changetheworkingdirectoryintoyours→inputInitialjobname:beam→Run1.2设置计算类型ANSYSMainMenu:Preferences→selectStructural→OK1.3选择单元类型ANSYSMainMenu:Preprocessor→ElementType→Add/Edit/Delete…→Add…→selectBeam2node188→OK(backtoElementTypeswindow)→Close(theElementTypewindow)1.4定义材料参数ANSYSMainMenu:Preprocessor→MaterialProps→MaterialModels→Structural→Linear→Elastic→Isotropic→inputEX:2.1e11,PRXY:0.3→OK1.5定义截面ANSYSMainMenu:Preprocessor→Sections→Beam→CommonSectns→分别定义矩形截面、圆截面和工字形截面：矩形截面:ID=1,B=0.1，H=0.15→Apply→圆截面：ID=2,R=0.1→Apply→工字形截面：ID=3,w1=0.1，w2=0.1，w3=0.2，t1=0.0114，t2=0.0114，t3=0.007→OK1.6生成几何模型生成特征点ANSYSMainMenu:Preprocessor→Modeling→Create→Keypoints→InActiveCS→依次输入三个点的坐标：input:1(0,0),2(10,0),3(5,1)→OK生成梁ANSYSMainMenu:Preprocessor→Modeling→Create→Lines→lines→Straightlines→连接两个特征点，1(0,0),2(10,0)→OK1.7网格划分ANSYSMainMenu:Preprocessor→Meshing→MeshAttributes→Pickedlines→OK→选择:SECT:1（根据所计算的梁的截面选择编号）；PickOrientationKeypoint(s):YES→拾取：3#特征点(5,1)→OK→MeshTool→SizeControls)lines:Set→PickAll(inPickingMenu)→inputNDIV:5→OK(backtoMeshToolwindow)→Mesh→PickAll(inPickingMenu)→Close(theMeshToolwindow)1.8模型施加约束最左端节点加约束ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Displacement→OnNodes→pickthenodeat(0,0)→OK→selectUX,UY,UZ,ROTX→OK最右端节点加约束ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Displacement→OnNodes→pickthenodeat(10,0)→OK→selectUY,UZ,ROTX→OK施加y方向的载荷ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Pressure→OnBeams→PickAll→VALI:100000→OK1.9分析计算ANSYSMainMenu:Solution→Solve→CurrentLS→OK(toclosethesolveCurrentLoadStepwindow)→OK1.10结果显示ANSYSMainMenu:GeneralPostproc→PlotResults→DeformedShape…→selectDef+Undeformed→OK(backtoPlotResultswindow)→ContourPlot→NodalSolu→select:DOFsolution,UY,Def+Undeformed,Rotation,ROTZ,Def+Undeformed→OK1.11退出系统ANSYSUtilityMenu:File→Exit→SaveEverything→OK练习二坝体的有限元建模与应力应变分析计算分析模型如图2-1所示,习题文件名:dam。1m5m0.55m图2－1坝体的计算分析模型2.1进入ANSYS程序→ANSYSED→Interactive→changetheworkingdirectoryintoyours→inputInitialjobname:dam→Run2.2设置计算类型ANSYSMainMenu:Preferences→selectStructural→OK2.3选择单元类型ANSYSMainMenu:Preprocessor→ElementType→Add/Edit/Delete→Add→selectSolidQuad4node42→OK(backtoElementTypeswindow)→Options…→selectK3:PlaneStrain→OK→Close(theElementTypewindow)2.4定义材料参数ANSYSMainMenu:Preprocessor→MaterialProps→MaterialModels→Structural→Linear→Elastic→Isotropic→inputEX:2.1e11,PRXY:0.3→OK2.5生成几何模型生成特征点ANSYSMainMenu:Preprocessor→Modeling→Create→Keypoints→InActiveCS→依次输入四个点的坐标：input:1(0,0),2(10,0),3(1,5),4(0.45,5)→OK生成坝体截面ANSYSMainMenu:Preprocessor→Modeling→Create→Areas→Arbitrary→ThroughKPS→依次连接四个特征点，1(0,0),2(10,0),3(1,5),4(0.45,5)→OK2.6网格划分ANSYSMainMenu:Preprocessor→Meshing→MeshTool→(SizeControls)lines:Set→依次拾取两条横边:OK→inputNDIV:15→Apply→依次拾取两条纵边:OK→inputNDIV:20→OK→(backtothemeshtoolwindow)Mesh:Areas,Shape:Quad,Mapped→Mesh→PickAll(inPickingMenu)→Close(theMeshToolwindow)2.7模型施加约束分别给下底边和竖直的纵边施加x和y方向的约束ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Displacement→Onlines→pickthelines→OK→selectLab2:UX,UY→OK给斜边施加x方向的分布载荷ANSYS命令菜单栏:Parameters→Functions→Define/Edit→1)在下方的下拉列表框内选择x,作为设置的变量；2)在Result窗口中出现{X},写入所施加的载荷函数：1000*{X}；3)FileSave(文件扩展名：func)→返回：Parameters→Functions→Readfromfile：将需要的.func文件打开，任给一个参数名，它表示随之将施加的载荷→OK→ANSYSMainMenu:Solution→DefineLoads→Apply→Structural→Pressure→OnLines→拾取斜边；OK→在下拉列表框中，选择：Existingtable→OK→选择需要的载荷参数名→OK2.8分析计算ANSYSMainMenu:Solution→Solve→CurrentLS→OK(toclosethesolveCurrentLoadStepwindow)→OK2.9结果显示ANSYSMainMenu:GeneralPostproc→PlotResults→DeformedShape…→selectDef+Undeformed→OK(backtoPlotResultswindow)→ContourPlot→NodalSolu…→select:DOFsolution,UX,UY,Def+Undeformed,Stress,SX,SY,SZ,Def+Undeformed→OK2.10退出系统ANSYSUtilityMenu:File→Exit…→SaveEverything→OK练习三超静定梁的有限元建模计算计算分析模型如图3-1所示,习题文件名:staticallyindeterminatebeamlmlm梁承受均布载荷：1.0e5Pa图3－1超静定梁的计算分析模型3.1进入ANSYS程序→ANSYSED→Interactive→changetheworkingdirectoryintoyours→inputInitialjobname:staticallyindeterminatebeam→Run3.2设置计算类型ANSYSMainMenu:Preferences→selectStructural→OK3.3选择单元类型ANSYSMainMenu:Preprocessor→ElementType→Add/Edit/Delete→Add→selectBeamtapered44→OK(backtoElementTypeswindow)→Close(theElementTypewindow)3.4定义材料参数ANSYSMainMenu:Preprocessor→MaterialProps→MaterialModels→Structural→Linear→Elastic→Isotropic→inputEX:2.1e11,PRXY:0.3→OK3.5定义截面ANSYSMainMenu:Preprocessor→Sections→Beam→CommonSectns→定义矩形截面:ID=1,B=0.01,H=0.1→OK3.6生成几何模型生成特征点ANSYSMainMenu:Preprocessor→Modeling→Create→Keypoints→InActiveCS→依次输入三个点的坐标：input:1(0,0),2(1,0),3(2,0),4(0,0,1)→OK生成梁ANSYSMainMenu:Preprocessor→Modeling→Create→Lines→lines→Straightlines→依次连接三个特征点，1(0,0),2(1,0),3(2,0)→OK显示梁体ANSYS命令菜单栏：PlotCtrlsStyleSizeandStyle→/ESHAPE→On→OK3.7网格划分ANSYSMainMenu:Preprocessor→Meshing→MeshAttributes→Pickedlines→OK→拾取:SECT:1；PickOrientationKeypoint(s):YES→拾取：4#特征点(0,0,1)→OK→MeshTool→(SizeControls)lines:Set→PickAll(inPickingMenu)→inputNDIV:8→OK(backtoMeshToolwind