清华大学ansys基础教程

有限元分析软件ANSYS6.1ed 上机指南 机械工程系 材料加工技术研究所 石伟 孔劲

Project7 平板的有限元建模与变形分析

计算分析模型如图7-1 所示, 习题文件名: plane

0.5 m 板承受均布载荷：1.0e5 Pa

0.5 m 0.5 m

图7－1 受均布载荷作用的平板计算分析模型

0.5 m

7.1 进入ANSYS

程序 →ANSYSED 6.1 →Interactive →change the working directory into yours →input Initial jobname: plane→Run 7.2设置计算类型

ANSYS Main Menu: Preferences →select Structural → OK 7.3选择单元类型

ANSYS Main Menu: Preprocessor →Element Type→Add/Edit/Delete →Add →select Solid Quad 4node 42 →OK (back to Element Types window) → Options… →select K3: Plane stress w/thk →OK→Close (the Element Type window)

7.4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 → OK

7.5定义实常数

ANSYS Main Menu: Preprocessor →Real Constants… →Add… →select Type 1→ OK→input THK:1 →OK →Close (the Real Constants Window)

7.6生成几何模型 9 生成特征点

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有限元分析软件ANSYS6.1ed 上机指南 机械工程系 材料加工技术研究所 石伟 孔劲

ANSYS Main Menu: Preprocessor →Modeling →Create →Keypoints →In Active CS →依次输入五个点的坐标：input:1(0,0),2(1,0), 3(1,1),4(0,1),5(0.5,0.5) →OK

9 生成平板

ANSYS Main Menu: Preprocessor →Modeling →Create →Areas →Arbitrary →Through KPS →连接特征点1,2,5 →Apply →连接特征点2,3,5 →Apply →连接特征点3,4,5 →Apply →连接特征点4,1,5 →OK 7.7 网格划分

ANSYS Main Menu: Preprocessor →Meshing →Mesh Tool → (Size Controls) lines: Set →Pick All(in Picking Menu) →input NDIV:1 →OK→(back to the mesh tool window)Mesh: Areas, Shape: Tri, Free →Mesh →Pick All (in Picking Menu) → Close( the Mesh Tool window)

7.8 模型施加约束

9 给模型施加x方向约束

ANSYS Main Menu: Solution →Define Loads →Apply →Structural →Displacement → On Lines →拾取模型左部的竖直边：Lab2: UX →OK 9 施加y方向约束

ANSYS Main Menu: Solution →Define Loads →Apply →Structural →Displacement → On Keypoints →拾取4# 特征点：Lab2: UY →OK

7.9 分析计算

ANSYS Main Menu: Solution →Solve →Current LS →OK(to close the solve Current Load Step window) →OK

7.10 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, UX,UY, Def + Undeformed →OK

7.11 退出系统

ANSYS Utility Menu: File→ Exit →Save Everything→OK

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