自下向上实体建模建立连杆模型

EX3. 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 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 Preprocessor -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 Active 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 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 Spline 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: 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 Apply 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 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 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 -Modeling