1、軸承座,練習(xí) 6 實(shí)體建模: 自上而下,January 30, 2001 Inventory #001442 W6-2,6. 實(shí)體建模：自上而下軸承座,說明 建立軸承座的半個(gè)對(duì)稱實(shí)體模型。 完成后以p-block.db 文件名保存數(shù)據(jù)庫(kù)文件,January 30, 2001 Inventory #001442 W6-3,6. 實(shí)體建模：自上而下 軸承座,1.按教師指定的工作目錄，用“p-block”作為作業(yè)名， 進(jìn)入 ANSYS 2.打開等視圖方位: Utility Menu PlotCtrls Pan, Zoom, Rotate 按ISO 或用命令: /VIEW,1,1,1,1 3.創(chuàng)建軸承

2、座的基礎(chǔ) : Main Menu Preprocessor -Modeling- Create -Volumes- Block By Dimensions . 輸入 X1 = 0, X2 = 3, Y1 = 0, Y2 = 1, Z1 = 0, Z2 = 3,然后按OK 或用命令: /PREP7 BLOCK,0,3,0,1,0,3,January 30, 2001 Inventory #001442 W6-4,6. 實(shí)體建模：自上而下 軸承座,3.將工作平面移到位置 X=2.25, Y=1.25, Z=.75: Utility Menu WorkPlane Offset WP by Incre

3、ments 設(shè)置 X,Y,Z Offsets = 2.25, 1.25, 0.75 設(shè)置XY, YZ, ZX Angles = 0, -90, 0, 然后按 OK 或用命令: WPOFF, 2.25, 1.25, 0.75 WPROT, 0, -90, 0,January 30, 2001 Inventory #001442 W6-5,6. 實(shí)體建模：自上而下 軸承座,4.創(chuàng)建直徑為0.75 英寸深度為-1.5 英寸的實(shí)體柱 : Main Menu Preprocessor -Modeling- Create -Volumes- Cylinder Solid Cylinder + 輸入Radi

4、us = 0.75/2 輸入Depth = -1.5, 然后按 OK 或用命令: CYL4, , ,0.75/2, , , ,-1.5 5.將實(shí)體柱考貝到DZ=1.5的新位置 : Main Menu Preprocessor Copy Volumes + 拾取柱體 (體號(hào) 2),按 OK DZ = 1.5, 按 OK 或用命令: VGEN,2,2, , , , ,1.5, ,0,January 30, 2001 Inventory #001442 W6-6,6. 實(shí)體建模：自上而下 軸承座,6.從軸承座基礎(chǔ)中挖出兩個(gè)圓孔: Main Menu Preprocessor -Modeling- O

5、perate -Booleans- Subtract Volumes + 拾取軸承座基礎(chǔ)的體 (體 1), 按 OK 拾取兩個(gè)圓柱體 (體 2 和體3), 然后按 OK 或用命令: VSBV, 1, ALL,January 30, 2001 Inventory #001442 W6-7,6. 實(shí)體建模：自上而下 軸承座,7.在整體坐標(biāo)系中改變工作平面的相對(duì)位置: Utility Menu WorkPlane Align WP with Global Cartesian 或用命令: WPCSYS,-1,0 VPLOT 8.創(chuàng)建套筒托架的基礎(chǔ): Main Menu Preprocessor -Mo

6、deling- Create -Volumes- Block By 2 Corners & Z + 輸入WP X = 0 輸入WP Y = 1 輸入width = 1.5 輸入height = 1.75 輸入depth = 0.75, 然后按 OK 或用命令: BLC4,0,1,1.5,1.75,0.75 9.將工作平面移到套筒托架的正面: Utility Menu WorkPlane Offset WP to Keypoints + 拾取正面左角頂部的關(guān)鍵點(diǎn),按 OK 或用命令: KWPAVE, 16,January 30, 2001 Inventory #001442 W6-8,6. 實(shí)體

7、建模：自上而下 軸承座,10.創(chuàng)建套筒托架的拱: Main Menu Preprocessor -Modeling- Create -Volumes- Cylinder Partial Cylinder + 輸入WP X = 0 輸入WP Y = 0 輸入Rad-1 = 0 輸入Theta-1 = 0 輸入Rad-2 = 1.5 輸入Theta-2 = 90 輸入Depth = -0.75, 然后按 OK 或用命令: CYL4,0,0,0,0,1.5,90,-0.75,January 30, 2001 Inventory #001442 W6-9,6. 實(shí)體建模：自上而下 軸承座,11.通過套

8、筒托架的孔創(chuàng)建軸承座的柱: Main Menu Preprocessor -Modeling- Create -Volumes- Cylinder Solid Cylinder + WP X = 0 WP Y = 0 Depth = 1 深 = -0.1875,按 Apply WP X = 0 WP Y = 0 Rad = 0.85 Depth = -2, 按 OK 或用命令: CYL4,0,0,1, , , ,-0.1875 CYL4,0,0,0.85, , , ,-2,January 30, 2001 Inventory #001442 W6-10,6. 實(shí)體建模：自上而下 軸承座,12.

9、挖掉兩個(gè)實(shí)體柱，形成軸承座和套筒的孔: Main Menu Preprocessor -Modeling- Operate -Booleans- Subtract Volumes + 拾取兩個(gè)形成套筒托架拱和基礎(chǔ)的體 按Apply 拾取軸承座柱 按Apply 拾取同樣的兩個(gè)基礎(chǔ)的體 按Apply 拾取通過孔的圓柱 按OK 13.合并相同的關(guān)鍵點(diǎn): Main Menu Preprocessor Numbering Ctrls Merge Items 設(shè)置標(biāo)號(hào) “Keypoints”,然后按 OK 或用命令: NUMMRG,KP,January 30, 2001 Inventory #001442

10、 W6-11,6. 實(shí)體建模：自上而下 軸承座,14.創(chuàng)建腹板: 14a. 在基礎(chǔ)正面頂邊的中間建立一個(gè)關(guān)鍵點(diǎn): Main Menu Preprocessor -Modeling- Create Keypoints KP between KPs + 在基礎(chǔ)上拾取兩個(gè)位于正上方拐角處的關(guān)鍵點(diǎn)，按 OK RATI = 0.5, 然后按OK 或用命令: KBETW,7,8,0,RATI,0.5,January 30, 2001 Inventory #001442 W6-12,6. 實(shí)體建模：自上而下 軸承座,14b.創(chuàng)建三角形面: Main Menu Preprocessor -Modeling-

11、Create -Areas- Arbitrary Through KPs + 在軸承座基礎(chǔ)和套筒托架基礎(chǔ)相交的位置，拾取第一個(gè)關(guān)鍵點(diǎn) X=1.5 在拱表面底部和套筒托架基礎(chǔ)相交的位置，拾取第二個(gè)關(guān)鍵點(diǎn) X=1.5 拾取在14a步驟中建立的位于X=1.5, Y=1, Z=3的第三個(gè)關(guān)鍵點(diǎn) 按Ok 或用命令: A,14,15,9,January 30, 2001 Inventory #001442 W6-13,6. 實(shí)體建模：自上而下 軸承座,14c.沿面的法線方向拉伸面: Main Menu Preprocessor -Modeling- Operate Extrude -Areas- Along Normal + 拾取在步驟14b中建立的三角形面,按 OK 輸入DIST = -0.15, 然后按OK 或用命令: VOFFST,3,-0.15,January 30, 2001 Inventory #001442 W6-14,6. 實(shí)體建模：自上而下 軸承座,15.組合體: Main Menu Preprocessor -Modeling- Operate -Booleans- Glue Volumes + 拾取Pick All 或用命令: VGLUE,ALL 16.打開體號(hào)的顯示開關(guān)并畫體: Utility Menu PlotCtrls Numbering 設(shè)置 Volume