I目录Project1简支梁的变形分析……………………………………………………….1Project2坝体的有限元建模与受力分析………………………………………….3Project3受内压作用的球体的应力与变形分析…………………………………..5Project4受热载荷作用的厚壁圆筒的有限元建模与温度场求解………………..7Project5超静定桁架的有限元求解………………………………………………..9Project6超静定梁的有限元求解………………………………………………….11Project7平板的有限元建模与变形分析…………………………………………13--1Project1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→ANSYSED6.1→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--2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--3Project2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→ANSYSED6.1→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--4ANSYSMainMenu: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--5Project3受内压作用的球体的有限元建模与分析计算分析模型如图3-1所示,习题文件名:sphere。R1=0.3R2=0.5承受内压:1.0e8Pa图3-1受均匀内压的球体计算分析模型(截面图)3.1进入ANSYS程序→ANSYSED6.1→Interactive→changetheworkingdirectoryintoyours→inputInitialjobname:sphere→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→selectSolidQuad4node42→OK(backtoElementTypeswindow)→Options…→selectK3:Axisymmetric→OK→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(0.3,0),2(0.5,0),3(0,0.5),4(0,0.3)→OK生成球体截面ANSYS命令菜单栏:WorkPlaneChangeActiveCStoGlobalSpherical→ANSYSMainMenu:Preprocessor→Modeling→Create→Lines→InActiveCoord→依次连接1,2,3