Ansys實(shí)體建模習(xí)題及步驟

1、 Ansys 上機(jī)操作（第3次）Ansys 實(shí)體建模: 由底向上三維實(shí)體(連桿 分析實(shí)例操作步驟 用由底向上建模技術(shù)，練習(xí)建立汽車連桿幾何模型。1. 指定的工作目錄，用“c-rod” 作為作業(yè)名，進(jìn)入ANSYS.2. 創(chuàng)建兩個(gè)圓形面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Circle > By Dimensions . 輸入RAD1 = 1.4輸入RAD2 = 1輸入THETA1 = 0輸入THETA2 = 180, 然后選擇Apply輸入THETA1 = 45, 然后選擇OK或用命令:/PREP7

2、PCIRC,1.4,1,0,180PCIRC,1.4,1,45,1803. 打開(kāi) 面號(hào):Utility Menu > PlotCtrls > Numbering .設(shè)置面號(hào)為 “on”, 然后選擇OK或用命令:/PNUM,AREA,1APLOT4. 創(chuàng)建兩個(gè)矩形面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Rectangle > By Dimensions . 輸入X1 = -0.3, X2 = 0.3, Y1 = 1.2, Y2 = 1.8, 然后選擇Apply輸入X1 = -1.8, X

3、2 = -1.2, Y1 = 0, Y2 = 0.3, 然后選擇OK或用命令:RECTNG,-0.3,0.3,1.2,1.8RECTNG,-1.8,-1.2,0,0.35. 平移工作面位置(X=6.5:Utility Menu > WorkPlane > Offset WP to > XYZ Locations +回車后在輸入窗口輸入 6.5 ， OK或用命令:WPAVE,6.56. 設(shè)置工作平面所在的坐標(biāo)系為激活坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Working Plane或用命令:CS

4、YS,47. 再創(chuàng)建兩個(gè)圓形面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Circle > By Dimensions . 輸入RAD1 = 0.7輸入RAD2 = 0.4輸入THETA1 = 0輸入THETA2 = 180, 然后選擇Apply輸入THETA2 = 135, 然后選擇OK或用命令:PCIRC,0.7,0.4,0,180PCIRC,0.7,0.4,0,1358. 在每一組面上分別進(jìn)行布爾操作:Main Menu > Preprocessor > -Modeling- Oper

5、ate > -Booleans- Overlap > Areas + 先選擇左邊的一組面, 然后選擇Apply再選擇右邊的一組面, 然后選擇OK或用命令:AOVLAP,1,2,3,4AOVLAP,5,69. 激活總體笛卡爾坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Global Cartesian或用命令:CSYS,010. 定義四個(gè)新的關(guān)鍵點(diǎn):Main Menu > Preprocessor > -Modeling- Create > Keypoints > In Active

6、 CS 第一關(guān)鍵點(diǎn), X=2.5, Y=0.5, 然后選擇Apply第二關(guān)鍵點(diǎn), X=3.25, Y=0.4, 然后選擇Apply第三關(guān)鍵點(diǎn), X=4, Y=0.33, 然后選擇Apply第四關(guān)鍵點(diǎn), X=4.75, Y=0.28, 然后選擇OK或用命令:K, ,2.5,0.5K, ,3.25,0.4K, ,4.0,0.33K, ,4.75,0.2811. 激活總體柱坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Global Cylindrical或用命令:CSYS,112. 創(chuàng)建一條線（由一系列關(guān)鍵點(diǎn)擬合一條樣條曲

7、線）:Main Menu > Preprocessor > -Modeling- Create > -Lines- Splines > With Options > Spline thru KPs +順序拾取如圖形窗口所示的六個(gè)關(guān)鍵點(diǎn), 然后選擇OK輸入XV1 = 1 (總體柱坐標(biāo)系，關(guān)鍵點(diǎn)1處的半徑Y(jié)V1 = 135 (總體柱坐標(biāo)系，關(guān)鍵點(diǎn)1處的角度XV6 = 1 (總體柱坐標(biāo)系，關(guān)鍵點(diǎn)6處的半徑Y(jié)V6 = 45 (總體柱坐標(biāo)系，關(guān)鍵點(diǎn)6處的角度按OK或用命令:BSPLIN,5,6,7,21,24,22,1,135,1,4513. 通過(guò)關(guān)鍵點(diǎn)1和18創(chuàng)建一條直線

8、 :Main Menu > Preprocessor > -Modeling- Create > -Lines- Lines > Straight Line + 拾取圖形窗口所示的兩個(gè)關(guān)鍵點(diǎn), 然后選擇OK或用命令:LSTR, 1, 1814. 打開(kāi)線號(hào)，顯示線:Utility Menu > PlotCtrls > Numbering .設(shè)置 Line numbers為 “on”, 然后選擇OKUtility Menu > Plot > Lines或用命令:/PNUM,LINE,1LPLOT15. 以預(yù)先定義的線6, 1, 7, 25 為邊界創(chuàng)建

9、一個(gè)新面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By Lines + 拾取四條線 (6, 1, 7, 和 25, 然后選擇OK或用命令:AL, 6, 1, 7, 2516. 放大連桿左邊部分:Utility Menu > PlotCtrls > Pan, Zoom, Rotate 拾取Box Zoom17. 創(chuàng)建三個(gè)線與線的倒角:Main Menu > Preprocessor > -Modeling- Create > -Lines- Line

10、 Fillet +拾取線 36 和 40, 然后選擇Apply輸入RAD = .25, 然后選擇Apply拾取線 40和 31, 然后選擇Apply按Apply拾取線 30和 39, 然后選擇OK按OKUtility Menu > Plot > Lines或用命令:LFILLT,36,40,0.25LFILLT,40,31,0.25LFILLT,30,39,0.25LPLOT18. 以預(yù)先定義的圓角為邊界，創(chuàng)建一新的面:Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > By

11、Lines + 拾取線 12, 10, 和 13, 然后選擇Apply拾取線 17, 15, 和19, 然后選擇Apply拾取線 23, 21, 和24, 然后選擇OKUtility Menu > Plot > Areas或用命令:AL, 12, 10, 13AL, 17, 15, 19AL, 23, 21, 24APLOT19. 把所有的面加起來(lái):Main Menu > Preprocessor > -Modeling- Operate > Add > Areas + 拾取Pick All或用命令:AADD,ALL20. 選擇Fit 使整個(gè)模型充滿圖形窗口

12、:Utility Menu > PlotCtrls > Pan, Zoom, Rotate 按Fit21. 關(guān)閉線號(hào)和面號(hào):Utility Menu > PlotCtrls > Numbering .設(shè)置線號(hào)和面號(hào)為“ off ”, 然后選擇OKUtility Menu > Plot > Areas或用命令:/PNUM,LINE,0/PNUM,AREA,0APLOT 22. 激活總體笛卡爾坐標(biāo)系:Utility Menu > WorkPlane > Change Active CS to > Global Cartesian 或用命令:CSYS,023. 以X-Z 平面 (在 Y 方向 為對(duì)稱面，對(duì)面進(jìn)行鏡面反射: Main Menu > Preprocessor > -Modeling- Reflect > Areas + 拾取Pick All選擇 X-Z 平面, 然后選擇OK或用命令:ARSYM,Y,1324. 把所有的面加起來(lái):Main Menu > Preprocessor > -Modeling- Operate > Add > Areas + 拾取Pic