有限元分析上机指导书之 ANSYS连杆建模实践.doc

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1、有限元分析实验指导书之二维单元的使用（连杆分析）1. 进入ANSYS工作目录,将 “c-rod” 作为jobname。2.创建两个圆面： Main Menu Preprocessor -Modeling- Create -Areas- Circle By Dimensions . RAD1 = 1.4 RAD2 = 1 THETA1 = 0 THETA2 = 180, 单击Apply 然后设置THETA1 = 45,再单击OK3.打开面:编号 Utility Menu PlotCtrls Numbering . 设置面号on, 然后单击OK4.创建两个矩形面: Main Menu Prepro

2、cessor -Modeling- Create -Areas- Rectangle By Dimensions . X1 = -0.3, X2 = 0.3, Y1 = 1.2, Y2 = 1.8, 单击Apply X1 = -1.8, X2 = -1.2, Y1 = 0, Y2 = 0.3, 单击 OK5.偏移工作平面到给定位置 (X=6.5): Utility Menu WorkPlane Offset WP to XYZ Locations + 在ANSYS输入窗口输入6.5 OK6.将激活的坐标系设置为工作平面坐标系: Utility Menu WorkPlane Change Act

3、ive CS to Working Plane6.52.50.51.80.31.0R1.4R0.4R0.7R45oSpline through six control pointsCLCLCrank pin endWrist pin endAll dimensions in inches45o0.280.40.334.754.03.257.创建另两个圆面: Main Menu Preprocessor -Modeling- Create -Areas- Circle By Dimensions . RAD1 = 0.7 RAD2 = 0.4 THETA1 = 0 THETA2 = 180, 然

4、后单击Apply 第二个圆THETA2 = 135, 然后单击OK8.对面组分别执行布尔运算: Main Menu Preprocessor -Modeling- Operate -Booleans- Overlap Areas + 首先选择左侧面组, 单击 Apply 然后选择右侧面组, 单击OK 9.将激活的坐标系设置为总体笛卡尔坐标系: Utility Menu WorkPlane Change Active CS to Global Cartesian10.定义四个新的关键点: Main Menu Preprocessor -Modeling- Create Keypoints In

5、Active CS 第一个关键点, X=2.5, Y=0.5, 单击Apply 第二个关键点, X=3.25, Y=0.4, 单击Apply 第三个关键点, X=4, Y=0.33, 单击Apply 第四个关键点, X=4.75, Y=0.28, 单击OK11.将激活的坐标系设置为总体柱坐标系: Utility Menu WorkPlane Change Active CS to Global Cylindrical12.通过一系列关键点创建多义线: Main Menu Preprocessor -Modeling- Create -Lines- Splines With Options Sp

6、line thru KPs + 如图按顺序拾取六个关键点, 然后单击 OK XV1 = 1 YV1 = 135 XV6 = 1 YV6 = 45 OK13.在关键点1和18之间创建直线: Main Menu Preprocessor -Modeling- Create -Lines- Lines Straight Line + 拾取如图的两个关键点, 然后单击 OK14.打开线的编号并画线: Utility Menu PlotCtrls Numbering . 打开线的编号, 单击 OK Utility Menu Plot Lines15.由前面定义的线6, 1, 7, 25创建一个新的面:

7、Main Menu Preprocessor -Modeling- Create -Areas- Arbitrary By Lines + 拾取四条线 (6, 1, 7, and 25),然后单击 OK16.放大连杆的左面部分: Utility Menu PlotCtrls Pan, Zoom, Rotate Box Zoom17.创建三个线倒角: Main Menu Preprocessor -Modeling- Create -Lines- Line Fillet + 拾取线36 和 40,然后单击 Apply RAD = .25,然后单击 Apply 拾取线40 和 31, 然后单击 A

8、pply Apply 拾取线 30和39, 然后单击OK OK Utility Menu Plot Lines18.由前面定义的三个线倒角创建新的面: Main Menu Preprocessor -Modeling- Create -Areas- Arbitrary By Lines + 拾取线12, 10, 及13, 单击 Apply 拾取线17, 15, 及19, 单击Apply 拾取线23, 21, 及24, 单击OK Utility Menu Plot Areas 19.将面加起来形成一个面: Main Menu Preprocessor -Modeling- Operate Add

9、 Areas + Pick All20.使模型充满整个图形窗口: Utility Menu PlotCtrls Pan, Zoom, Rotate Fit21.关闭线及面的编号: Utility Menu PlotCtrls Numbering . 关闭线及面的编号, 单击 OK Utility Menu Plot Areas22.将激活的坐标系设置为总体笛卡尔坐标系: Utility Menu WorkPlane Change Active CS to Global Cartesian Or issue:CSYS,023.将面沿XZ面进行映射 (在 Y 方向): Main Menu Prep

10、rocessor -Modeling- Reflect Areas + Pick All 选择X-Z面, 单击OK24.将面加起来形成一个面: Main Menu Preprocessor -Modeling- Operate Add Areas + Pick All 25.关闭工作平面: Utility Menu WorkPlane Display Working Plane26.存储数据库并离开ANSYS: 拾取 “SAVE_DB” 拾取“QUIT” 选择 “Quit - No Save!”OK27. 选取93号壳单元Main MenuPreprocessorElement TypeAdd

11、/Edit/DeleteAdd28. 设置壳单元厚度为0.3Main MenuPreprocessorReal ConstantsAdd/Edit/DeleteAddok29. 设置材料参数Main MenuPreprocessorMaterial PropsMaterial Models30. 分网Main MenuPreprocessorMeshingMeshTool31. 施加约束Main MenuPreprocessorLoadsDefine LoadsApplyStructuralDisplacementOn Lines选取小孔边缘，约束小孔的所有自由度32. 加载Main Menu

12、PreprocessorLoadsDefine LoadsApplyStructuralPressureOn Lines选取大孔的半个边缘，33. 显示壳单元的厚度旋转模型，使模型显示成薄片状勾选Display of element后，能显示0.3的壁厚。34. 求解Main MenuSolutionSolveCurrent LS35. 后处理Main MenuGeneral PostprocPlot ResultsContour PlotNodal SoluMain MenuGeneral PostprocPlot ResultsContour PlotElement Solu输出窗口图片为 .emf 文件（可调入word文件中）