1、Utility MenuFileChange Jobname,,输入Enter New jobname:zuoyeer。 2)分析标题:Change Title,,输入 Enter New Title:qiutifenxi。如图1、2所示。图1图2第二步、设置计算类型 ANSYS Main Menu: Preferences select Structural OK,如图3所示。图3第三步、选择单元类型 PreprocessorElement TypeAdd/Edit/Delete Add select Solid Quad 4node 42 OK (back to Element Types
2、 window) Options select K3: Axisymmetric OKClose (the Element Type window),如图4、5所示。图4图5第四步、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 OK,如图6所示。图6第五步、创建有限元模型生成特征点 Preprocessor Modeling Create Keypoints In Active CS
3、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,如图7所示。图7生成球体截面ANSYS 命令菜单栏: Work PlaneChange Active CS toGlobal Spherical ANSYS Main Menu: Preprocessor Modeling Create LinesLines In Active Coord 依次连接1,2,3,4点OK Preprocessor Modeling Create Areas Arbitrary By Lines 依次拾取四条边OK ANSYS 命令菜单栏:Global
4、Cartesian,如图8、9、10、11所示。图8图9图10图11第六步、 网格划分 Preprocessor Meshing Mesh Tool(Size Controls) lines: Set 拾取两条直边:OKinput NDIV: 10 Apply拾取两条曲边:OK input NDIV: 20 OK (back to the mesh tool window)Mesh: Areas, Shape: Quad, Mapped Mesh Pick All (in Picking Menu) Close( the Mesh Tool window),如图12所示。图12第七步、模型施加
5、约束给水平直边施加约束 Solution Define Loads Apply Structural Displacement On Lines 拾取水平边:Lab2: UY OK,如图13所示。给竖直边施加约束 Solution Define Loads Apply Structural Displacement Symmetry B.C. 拾取竖直边: UXOK,如图14所示。给内弧施加径向的分布载荷 Solution Define Loads Apply Structural Pressure On Lines 拾取小圆弧;OK input VALUE:100e6 OK,如图15、16所
6、示。图13图14图15图16第八步、分析计算 Solution Solve Current LS OK(to close the solve Current Load Step window) OK,如图17、18所示。图17图18第九步、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, UX,UY, Def
7、 + UndeformedStress ,SX,SY,SZ,Def + UndeformedOK,如图19、20、21、22所示。 图19图20图21图22显示等效应力等值线图其操作如下:General Postproc Plot Results Contour Plot Nodal Solu Stress ,SX,SY,SZ,Def + UndeformedOK,如图23所示。图23由图发现最大应力出现在球内环附件,与解析解吻合列表显示位移结果数据(列出最大位移)General Postproc List Results Nodal SolutionDOF SolutionDisplacement vector sum,如图24、25、26、27所示。图24图25图26图27第十步、退出系统 ANSYS Utility Menu: File Exit Save EverythingOK
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