Pillow Block Workshop 6 Solid Modeling: Top-Down

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block Description Build a half symmetry solid model of this pillow block. When you’re done, save the database to p-block.db. Counterbore 1.0R, deep Base 6 x 3 x 1 Web, 0.15 thick All dimensions in inches 1.75 Four 0.75D holes, 0.75 offset from corner Bushing, 0.85RBracket 1.5R, 0.75 thick

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 1.Enter ANSYS in the working directory specified by your instructor using “p-block” as the jobname. 2.Switch to isometric view: –Utility Menu > PlotCtrls > Pan, Zoom, Rotate … [ISO] –Or issue: /VIEW,1,1,1,1 3.Create the base of the pillow block: –Main Menu > Preprocessor > -Modeling- Create > -Volumes- Block > By Dimensions... X1 = 0, X2 = 3, Y1 = 0, Y2 = 1, Z1 = 0, Z2 = 3, then [OK] –Or issue: /PREP7 BLOCK,0,3,0,1,0,3

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 3.Offset working plane to location X=2.25, Y=1.25, Z=.75: –Utility Menu > WorkPlane > Offset WP by Increments … Set X,Y,Z Offsets = 2.25, 1.25, 0.75 Set XY, YZ, ZX Angles = 0, -90, 0, then [OK] –Or issue: WPOFF, 2.25, 1.25, 0.75 WPROT, 0, -90, 0

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 4.Create a solid cylinder having a diameter of 0.75 inches and a depth of -1.5 inches: –Main Menu > Preprocessor > -Modeling- Create > -Volumes- Cylinder > Solid Cylinder + Radius = 0.75/2 Depth = -1.5, then [OK] –Or issue: CYL4,,,0.75/2,,,, Copy the solid cylinder to new location with DZ=1.5: –Main Menu > Preprocessor > Copy > Volumes + Pick the cylinder volume (Vol. Number 2), then [OK] DZ = 1.5, then [OK] –Or issue: VGEN,2,2,,,,,1.5,,0

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 6.Subtract the two solid cylinders from the base: –Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Subtract > Volumes + Pick the base volume (Vol. 1), then [OK] Pick the two cylinder volumes (Vols. 2 and 3), then [OK] –Or issue: VSBV, 1, ALL

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 7.Align working plane with the Global Cartesian origin: –Utility Menu > WorkPlane > Align WP with > Global Cartesian –Or issue: WPCSYS,-1,0 VPLOT 8.Create the base of the bushing bracket: –Main Menu > Preprocessor > -Modeling- Create > -Volumes- Block > By 2 Corners & Z + WP X = 0 WP Y = 1 Width = 1.5 Height = 1.75 Depth = 0.75, then [OK] –Or issue: BLC4,0,1,1.5,1.75, Offset working plane to the front face of the bushing bracket: –Utility Menu > WorkPlane > Offset WP to > Keypoints + Pick keypoint at the top left corner of the front face, then [OK] –Or issue: KWPAVE, 16

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 10.Create the arch of the bushing bracket: –Main Menu > Preprocessor > -Modeling- Create > -Volumes- Cylinder > Partial Cylinder + WP X = 0 WP Y = 0 Rad-1 = 0 Theta-1 = 0 Rad-2 = 1.5 Theta-2 = 90 Depth = -0.75, then [OK] –Or issue: CYL4,0,0,0,0,1.5,90,-0.75

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 11.Create cylinders for the counterbore and the through hole in the bushing bracket: –Main Menu > Preprocessor > -Modeling- Create > -Volumes- Cylinder > Solid Cylinder + WP X = 0 WP Y = 0 Radius = 1 Depth = , then [Apply] WP X = 0 WP Y = 0 Radius = 0.85 Depth = -2, then [OK] –Or issue: CYL4,0,0,1,,,, CYL4,0,0,0.85,,,,-2

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 12.Subtract the two solid cylinders to form the counterbore and bushing through-hole: –Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Subtract > Volumes + Pick the two volumes that form the base and the arch of the bushing bracket [Apply] Pick the counterbore cylinder [Apply] Pick the same two base volumes [Apply] Pick the through-hole cylinder [OK] 13.Merge coincident keypoints: –Main Menu > Preprocessor > Numbering Ctrls > Merge Items … Set Label to “Keypoints”, then [OK] –Or issue: NUMMRG,KP

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 14.Create the web: 14a. Create a keypoint in the middle of the front top edge of the base: –Main Menu > Preprocessor > -Modeling- Create > Keypoints > KP between KPs + Pick the two upper front corner keypoints of the base, then [OK] RATI = 0.5, then [OK] –Or issue: KBETW,7,8,0,RATI,0.5

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 14b. Create a triangular area: –Main Menu > Preprocessor > -Modeling- Create > -Areas- Arbitrary > Through KPs + Pick the 1st keypoint where the base of the bushing bracket intersects the base of the pillow block at X=1.5 Pick the 2nd keypoint where the base of the bushing bracket intersects the bottom arch surface at X=1.5 Pick the 3rd keypoint that was created in step 14a at X=1.5, Y=1, Z=3 [Ok] –Or issue: A,14,15,9

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 14c. Extrude area along area normal: –Main Menu > Preprocessor > -Modeling- Operate > Extrude > -Areas- Along Normal + Pick the triangular area created in step 14b, then [OK] DIST = -0.15, then [OK] –Or issue: VOFFST,3,-0.15

Workshop Supplement January 30, 2001 Inventory # W Solid Modeling: Top-Down Pillow Block 15.Glue the volumes together: –Main Menu > Preprocessor > -Modeling- Operate > -Booleans- Glue > Volumes + [Pick All] –Or issue: VGLUE,ALL 16.Turn volume numbers on and then plot volumes: –Utility Menu > PlotCtrls > Numbering … Set Volume numbers on, then [OK] –Or issue: /PNUM,VOLU,1 VPLOT 17.Save and exit ANSYS: –Pick the “SAVE_DB” button in the Toolbar –Pick the “QUIT” button in the Toolbar Select “Quit - No Save!” [OK] – Or issue: FINISH /EXIT,ALL