自下向上实体建模建立连杆模型

1、6.52.5 0.51.8 0.31.0R1.4R0.40.745oSpline through six control C LC LCrank pinWrist pinAll dimensions in inches45o0.20.4 0.34.74.0 3.2EX3. 练习主题:自下向上实体建模建立连杆模型练习目的:熟悉从下向上建模的过程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 D

2、imensions . 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 > Preprocessor > -Modeling- Create > -Areas- Rectangle > By Dimensions . X1 = -0.3, X2 = 0.3, Y1 = 1.2, Y2 = 1.8

3、, 单击Apply X1 = -1.8, X2 = -1.2, Y1 = 0, Y2 = 0.3, 单击 OK 5. 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6.5OK6. 将激活的坐标系设置为工作平面坐标系:Utility Menu > WorkPlane > Change Active CS to > Working Plane7. 创建另两个圆面:Main Menu > Preprocessor > -

4、Modeling- Create > -Areas- Circle > By Dimensions .RAD1 = 0.7RAD2 = 0.4THETA1 = 0THETA2 = 180, 然后单击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OK9. 将激活的坐标系设置为总体笛卡尔坐标系:Utility M

5、enu > WorkPlane > Change Active CS to > Global Cartesian10.定义四个新的关键点:Main Menu > Preprocessor > -Modeling- Create > Keypoints > In 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:Uti

6、lity 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 > Spline thru KPs +如图按顺序拾取六个关键点, 然后单击OKXV1 = 1YV1 = 135XV6 = 1YV6 = 45OK 13.在关键点1和18之间创建直线:Main Menu > Preprocesso

7、r > -Modeling- Create > -Lines- Lines > Straight Line + 拾取如图的两个关键点, 然后单击OK 14.打开线的编号并画线:Utility Menu > PlotCtrls > Numbering .打开线的编号, 单击OKUtility Menu > Plot > Lines15.由前面定义的线6, 1, 7, 25创建一个新的面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By Lin

8、es + 拾取四条线(6, 1, 7, and 25,然后单击OK 16.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ApplyRAD = .25,然后单击Apply拾取线40 和31, 然后单击ApplyApply拾取线30和39, 然后单击OKOKUtility Menu > Plot &

9、gt; 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OKUtility Menu > Plot > Areas 19.将面加起来形成一个面:Main Menu > Preprocessor > -Modeling- Operate > Add > A

10、reas + 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OKUtility 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X-Z面进行映射(在Y 方向:Main Menu > Preprocessor > -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 > -Model