自下向上實體建模建立連桿模型

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. 練習(xí)主題:自下向上實體建模建立連桿模型練習(xí)目的:熟悉從下向上建模的過程1. 進入ANSYS 工作目錄,將 “c -rod” 作為jobname 。2. 創(chuàng)建兩個圓面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Circle > By D

2、imensions . RAD1 = 1.4 RAD2 = 1 THETA1 = 0 THETA2 = 180, 單擊Apply 然后設(shè)置THETA1 = 45,再單擊OK3. 打開面:編號 Utility Menu > PlotCtrls > Numbering . 設(shè)置面號on, 然后單擊OK4. 創(chuàng)建兩個矩形面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Rectangle > By Dimensions . X1 = -0.3, X2 = 0.3, Y1 = 1.2, Y2 = 1.8

3、, 單擊Apply X1 = -1.8, X2 = -1.2, Y1 = 0, Y2 = 0.3, 單擊 OK 5. 偏移工作平面到給定位置 (X=6.5:Utility Menu > WorkPlane > Offset WP to > XYZ Locations + 在ANSYS 輸入窗口輸入6.5OK6. 將激活的坐標(biāo)系設(shè)置為工作平面坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Working Plane7. 創(chuàng)建另兩個圓面:Main Menu > Preprocessor > -

4、Modeling- Create > -Areas- Circle > By Dimensions .RAD1 = 0.7RAD2 = 0.4THETA1 = 0THETA2 = 180, 然后單擊Apply第二個圓THETA2 = 135, 然后單擊OK8. 對面組分別執(zhí)行布爾運算:Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Overlap > Areas + 首先選擇左側(cè)面組, 單擊Apply然后選擇右側(cè)面組, 單擊OK9. 將激活的坐標(biāo)系設(shè)置為總體笛卡爾坐標(biāo)系:Utility M

5、enu > WorkPlane > Change Active CS to > Global Cartesian10.定義四個新的關(guān)鍵點:Main Menu > Preprocessor > -Modeling- Create > Keypoints > In Active CS 第一個關(guān)鍵點, X=2.5, Y=0.5, 單擊Apply第二個關(guān)鍵點, X=3.25, Y=0.4, 單擊Apply第三個關(guān)鍵點, X=4, Y=0.33, 單擊Apply第四個關(guān)鍵點, X=4.75, Y=0.28, 單擊OK11.將激活的坐標(biāo)系設(shè)置為總體柱坐標(biāo)系:Uti

6、lity Menu > WorkPlane > Change Active CS to > Global Cylindrical12.通過一系列關(guān)鍵點創(chuàng)建多義線:Main Menu > Preprocessor > -Modeling- Create > -Lines- Splines > With Options > Spline thru KPs +如圖按順序拾取六個關(guān)鍵點, 然后單擊OKXV1 = 1YV1 = 135XV6 = 1YV6 = 45OK 13.在關(guān)鍵點1和18之間創(chuàng)建直線:Main Menu > Preprocesso

7、r > -Modeling- Create > -Lines- Lines > Straight Line + 拾取如圖的兩個關(guān)鍵點, 然后單擊OK 14.打開線的編號并畫線:Utility Menu > PlotCtrls > Numbering .打開線的編號, 單擊OKUtility Menu > Plot > Lines15.由前面定義的線6, 1, 7, 25創(chuàng)建一個新的面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By Lin

8、es + 拾取四條線(6, 1, 7, and 25,然后單擊OK 16.放大連桿的左面部分:Utility Menu > PlotCtrls > Pan, Zoom, Rotate Box Zoom17.創(chuàng)建三個線倒角:Main Menu > Preprocessor > -Modeling- Create > -Lines- Line Fillet + 拾取線36 和40,然后單擊ApplyRAD = .25,然后單擊Apply拾取線40 和31, 然后單擊ApplyApply拾取線30和39, 然后單擊OKOKUtility Menu > Plot &

9、gt; Lines18.由前面定義的三個線倒角創(chuàng)建新的面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By Lines + 拾取線12, 10, 及13, 單擊Apply拾取線17, 15, 及19, 單擊Apply拾取線23, 21, 及24, 單擊OKUtility Menu > Plot > Areas 19.將面加起來形成一個面:Main Menu > Preprocessor > -Modeling- Operate > Add > A

10、reas + Pick All20.使模型充滿整個圖形窗口:Utility Menu > PlotCtrls > Pan, Zoom, Rotate Fit21.關(guān)閉線及面的編號:Utility Menu > PlotCtrls > Numbering .關(guān)閉線及面的編號, 單擊OKUtility Menu > Plot > Areas22.將激活的坐標(biāo)系設(shè)置為總體笛卡爾坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Global Cartesian Or issue:CSYS,023.將面沿X-Z面進行映射(在Y 方向:Main Menu > Preprocessor > -Modeling- Reflect > Areas + Pick All選擇X-Z面, 單擊OK24.將面加起來形成一個面:Main Menu > Preprocessor > -Model