ANSYS实例2.doc

有限元分析软件ANSYS上机指南Project5 超静定桁架的有限元建模与分析计算分析模型如图5-1 所示, 习题文件名: truss。 图51 超静定桁架的计算分析模型5.1 进入ANSYS程序 ANSYSED 10.0 change the working directory into yours input Initial jobname: trussOK5.2设置计算类型 ANSYS Main Menu: Preferences select Structural OK5.3选择单元类型ANSYS Main Menu: Preprocessor Element TypeAdd/Edit/Delete Add select Link 2D spar 1 OK (back to Element Types window) Options select K3: Plane Strain OKClose (the Element Type window)5.4定义材料参数ANSYS Main Menu: Preprocessor Material Props Material Models Structural Linear Elastic Isotropic input EX:2.1e11, PRXY:0.3 OK5.5定义实常数 ANSYS Main Menu: Preprocessor Real Constants Add select Type 1 OKinput AREA:0.25 OK Close (the Real Constants Window)5.6生成几何模型 生成特征点ANSYS Main Menu: Preprocessor Modeling Create Keypoints In Active CS 依次输入四个点的坐标：input:1(1,1),2(2,1),3(3,1),4(2,0) OK 生成桁架ANSYS Main Menu: Preprocessor Modeling Create Lines Lines Straight Line 依次连接四个特征点，1(1,1),2(2,1),3(3,1),4(2,0) OK5.7 网格划分ANSYS Main Menu: Preprocessor Meshing Mesh Tool(Size Controls) lines: Set 依次拾取三根杆:OKinput NDIV: 1 OK (back to the mesh tool window)Mesh: lines Mesh Pick All (in Picking Menu) Close( the Mesh Tool window)5.8 模型施加约束 分别给1,2,3三个特征点施加x和y方向的约束ANSYS Main Menu: Solution Define Loads Apply Structural Displacement On Keypoints 拾取1(1,1),2(2,1),3(3,1)三个特征点 OK select Lab2:UX, UY OK 给4#特征点施加y方向载荷ANSYS Main Menu: Solution Define Loads Apply Structural Force/Moment On Keypoints 拾取特征点4(2,0) OK Lab: FY, Value: -100e6 OK5.9 分析计算 ANSYS Main Menu: Solution Solve Current LS OK(to close the solve Current Load Step window) OK5.10 结果显示 ANSYS Main Menu: General Postproc Plot Results Deformed Shape select Def + Undeformed OK (back to Plot Results window) Contour Plot Nodal Solu select: DOF solution, UY, Def + Undeformed OK5.11 退出系统 ANSYS Utility Menu: File Exit Save EverythingOKProject6 超静定梁的有限元建模计算计算分析模型如图6-1 所示, 习题文件名: statically indeterminate beam 图61 超静定梁的计算分析模型6.1 进入ANSYS程序 ANSYSED 10.0 change the working directory into yours input Initial jobname: statically indeterminate beamOK6.2设置计算类型 ANSYS Main Menu: Preferences select Structural OK6.3选择单元类型ANSYS Main Menu: Preprocessor Element TypeAdd/Edit/Delete Add select Beam tapered 44 OK(back to Element Types window) Close (the Element Type window)6.4定义材料参数ANSYS Main Menu: Preprocessor Material Props Material Models Structural Linear Elastic Isotropic input EX:1.1e11, PRXY:0.3 OK6.5定义截面ANSYS Main Menu: Preprocessor Sections Beam Common Sectns 定义矩形截面:ID=1,B=0.01,H=0.1 OK 6.6生成几何模型 生成特征点 ANSYS Main Menu: Preprocessor Modeling Create Keypoints In Active CS 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ANSYS Main Menu: Preprocessor Modeling Create Lines lines Straight lines 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：PlotCtrls Style Size and Style /ESHAPE On OK6.7 网格划分 ANSYS Main Menu: Preprocessor Meshing Mesh Attributes Picked lines OK 拾取: SECT:1；Pick Orientation Keypoint(s):YES拾取：4#特征点(0,0,1) OKMesh Tool (Size Controls) lines: Set Pick All(in Picking Menu) input NDIV:8 OK (back to Mesh Tool window) Mesh Pick All (in Picking Menu) Close (the Mesh Tool window)6.8 模型施加约束 分别给1,2,3三个特征点加约束ANSYS Main Menu: Solution Define Loads Apply Structural Displacement On Keypoints 拾取1,2,3 keypoints OK select All DOF OK 施加y方向的载荷ANSYS Main Menu: Solution Define Loads Apply Structural Pressure On Beams Pick All LKEY:2,VALI:100000 OK6.9 分析计算 ANSYS Main Menu: Solution Solve Current LS OK(to close the solve Current Load Step window) OK6.10 结果显示 ANSYS Main Menu: General Postproc Plot Results Deformed Shape select Def + Undeformed OK (back