ansys算例.docx

ansys例题一：四杆桁架结构 源于《有限元分析基础教程(曾攀)》 1?基于图形界面(GUI)的交互式操作(step?by?step)? (1)?进入ANSYS(设定工作目录和工作文件)? 程序?→ANSYS?→?ANSYS?Interactive?→Working?directory?(设置工作目录)?→Initial?jobname(设置工作文件名):?planetruss→Run?→?OK? (2)?设置计算类型? ANSYS?Main?Menu:?Preferences…?→?Structural?→?OK? (3)?选择单元类型? ANSYS?Main?Menu:?Preprocessor?→Element?Type→Add/Edit/Delete…?→Add…?→Link：2D?spar?1?→OK?(返回到Element?Types窗口)?→Close? (4)?定义材料参数? ANSYS?Main?Menu:?Preprocessor?→Material?Props?→Material?Models→Structural?→Linear?→Elastic→?Isotropic:?EX:2.95e11?(弹性模量)，PRXY:?0?(泊松比)?→?OK?→?鼠标点击该窗口右上角来关闭该窗口? (5)?定义实常数以确定单元的截面积? ANSYS?Main?Menu:?Preprocessor?→Real?Constants…?→Add/Edit/Delete?→Add?→Type?1→?OK→Real?Constant?Set?No:?1?(第1号实常数),?AREA:?1e-4?(单元的截面积)?→OK→Close? (6)?生成单元? ANSYS?Main?Menu:?Preprocessor?→Modeling?→Creat→Nodes→?In?Active?CS→Node?number?1?→?X:0,Y:0,Z:0?→Apply→Node?number?2?→?X:0.4,Y:0,Z:0?→Apply→Node?number?3?→?X:0.4,Y:0.3,Z:0→Apply→Node?number?4?→?X:0,Y:0.3,Z:0→OK? ANSYS?Main?Menu:?Preprocessor?→?Modeling?→?Create?→?Elements→Elem?Attributes?（接受默认值）→User?numbered→Thru?nodes→?OK→选择node?1和node2→?Apply→选择node?2和node3→?Apply→选择node?1和node3→?Apply→选择node?4和node3→?Apply→OK? (7)?模型施加约束和外载? 添加位移的约束，分别将1节点X和Y方向、2节点Y方向、4节点的X和Y方向位移约束。? ANSYS?Main?Menu:?Solution?→?Define?Loads?→?Apply?→Structural?→?Displacement?→?On?Nodes?→?用鼠标选择节点1→?Apply?→?Lab2?DOFs:?UX，UY?，VALUE：0?→Apply→用鼠标选择节点2→?Apply?→?Lab2?DOFs:?UY?，VALUE：0?→Apply→用鼠标选择节点4→?Apply?→?Lab2?DOFs:?UX,UY?，VALUE：0?→OK? 加载集中力? ANSYS?Main?Menu:?Solution?→?Define?Loads?→?Apply?→Structural?→?Force/moment→?On?Nodes?→用鼠标选择结构节点2→?Apply?→FX，?VALUE:?20000?→?Apply→用鼠标选择结构节点3→?Apply?→?FY，VALUE:?－25000?→OK? (9)?分析计算? ANSYS?Main?Menu:?Solution?→?Solve?→?Current?LS?→OK?→?Should?The?Solve?Command?be?Executed??Y→?Close?(Solution?is?done!?)?→?关闭文字窗口 (10)?结果显示? ANSYS?Main?Menu:?General?Postproc?→?Plot?Results?→Deformed?Shape?…?→?Def?+?Undeformed?→?OK?(返回到Plot?Results)?→?Contour?Plot?→?Nodal?Solu?…?→?DOF?solution→Displacement?vector?sum?(可以看到位移云图)? ANSYS?Main?Menu:?General?P