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3-D Bracket Workshop 10A Loading and Solution. Workshop Supplement February 7, 2006 Inventory #002269 W10-2 10A. Loading and Solution 3-D Bracket Description.

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Presentation on theme: "3-D Bracket Workshop 10A Loading and Solution. Workshop Supplement February 7, 2006 Inventory #002269 W10-2 10A. Loading and Solution 3-D Bracket Description."— Presentation transcript:

1 3-D Bracket Workshop 10A Loading and Solution

2 Workshop Supplement February 7, 2006 Inventory #002269 W10-2 10A. Loading and Solution 3-D Bracket Description Apply loads to the 3-D bracket model below and solve using the Sparse iterative solver. The model has already been meshed with SOLID95 20-noded bricks, and Young’s Modulus has been set to 30e6 psi.

3 Workshop Supplement February 7, 2006 Inventory #002269 W10-3 10A. Loading and Solution 3-D Bracket Loads and Boundary Conditions 1000 psi on top area Symmetry B.C. on hole surface Fix kp 28 in z-direction

4 Workshop Supplement February 7, 2006 Inventory #002269 W10-4 10A. Loading and Solution 3-D Bracket 1.Enter ANSYS in the working directory specified by your instructor using “bracket-3d” as the jobname. 2.Resume the “bracket-3d.db1” database file: –Utility Menu > File > Resume from … Select the “bracket-3d.db1” database file, then [OK] –Or issue: RESUME,bracket-3d,db1 3.Enter the solution processor and restrain translations normal to hole surfaces: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas Pick the areas on the hole surfaces (area numbers 3, 4, 5, and 6), then [OK] –Or issue: /SOLU DA,3,SYMM DA,4,SYMM DA,5,SYMM DA,6,SYMM

5 Workshop Supplement February 7, 2006 Inventory #002269 W10-5 10A. Loading and Solution 3-D Bracket 4.To prevent rigid body motion along the Z axis, constrain UZ translation on keypoint 28: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Keypoints Enter keypoint number “28” in the ANSYS picking menu followed by [Enter] [OK] Set Lab2 = “UZ”, then [OK] –Or issue: DK,28,UZ 5.Apply 1000 psi pressure load to the top surface area of the 3-D bracket: –Main Menu > Solution > Define Loads > Apply > Structural > Pressure > On Areas Pick the top surface area (area number 11), then [OK] Set VALUE = 1000, then [OK] –Or issue: SFA,11,1,PRES,1000 6.Select the Sparse direct solver: –Main Menu > Solution > Analysis Type > Sol’n Controls Pick the “Sol’n Options” tab Select the “Sparse direct” solver, then [OK] –Or issue: EQSLV,SPARSE

6 Workshop Supplement February 7, 2006 Inventory #002269 W10-6 10A. Loading and Solution 3-D Bracket 7.Save the database and obtain the solution: –Pick the “SAVE_DB” button in the Toolbar (or select: Utility Menu > File > Save as Jobname.db) –Main Menu > Solution > Solve > Current LS [OK] –Or issue: SAVE SOLVE 8.After the solution is completed, enter the general postprocessor and plot the von Mises stress (SEQV): –Main Menu > General Postproc > Plot Results > Contour Plot > Nodal Solu Select Nodal Solution > Stress > von Mises stress, then [OK] –Or issue: /POST1 PLNSOL,S,EQV

7 Workshop Supplement February 7, 2006 Inventory #002269 W10-7 10A. Loading and Solution 3-D Bracket

8 Workshop Supplement February 7, 2006 Inventory #002269 W10-8 10A. Loading and Solution 3-D Bracket 9.Change the viewing angle and replot: –Utility Menu > PlotCtrls > View Settings > Viewing Direction... XV = -0.5 YV = -0.25 ZV = 1 [OK] –Or issue: /VIEW,1,-0.5, -0.25, 1 /REPLOT 10.Save the ANSYS database: –Pick the “SAVE_DB” button in the Toolbar

9 Connecting Rod Workshop 10B Loading and Solution

10 Workshop Supplement February 7, 2006 Inventory #002269 W10-10 10B. Loading and Solution Connecting Rod Description Apply loads to the connecting rod (half-symmetry) model below and solve using the SPARSE solver. The model has already been meshed with SOLID95 20-noded bricks, and Young’s Modulus has been set to 30e6 psi.

11 Workshop Supplement February 7, 2006 Inventory #002269 W10-11 10B. Loading and Solution Connecting Rod Loads and Boundary Conditions Symmetry B.C. on Areas 1000 psi on Area Constrain UZ DOF on Node

12 Workshop Supplement February 7, 2006 Inventory #002269 W10-12 10B. Loading and Solution Connecting Rod 1.Enter ANSYS in the working directory specified by your instructor using “conn-rod” as the jobname. 2.Resume the “conn-rod.db1” database file: –Utility Menu > File > Resume from … Select the “conn-rod.db1” database file, then [OK] –Or issue: RESUME,conn-rod,db1 3.Enter the solution processor and restrain translations normal to the larger hole surfaces: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas Pick the areas on the hole surfaces (area numbers 8 and 9), then [OK] –Or issue: /SOLU DA,8,SYMM DA,9,SYMM

13 Workshop Supplement February 7, 2006 Inventory #002269 W10-13 10B. Loading and Solution Connecting Rod 4.Apply symmetry boundary constraints on all area surfaces at Y=0: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas Pick the areas on the plane Y=0 (area numbers 7, 10 and 13), then [OK] –Or issue: DA,7,SYMM DA,10,SYMM DA,13,SYMM 5.To prevent rigid body motion along the Z axis, constrain UZ translation on node 702: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Nodes Enter node number “702” in the ANSYS picking menu followed by [Enter] [OK] Set Lab2 = “UZ”, then [OK] –Or issue: D,702,UZ

14 Workshop Supplement February 7, 2006 Inventory #002269 W10-14 10B. Loading and Solution Connecting Rod 6.Apply 1000 psi pressure load to area number 11 located on the smaller hole: –Main Menu > Solution > Define Loads > Apply > Structural > Pressure > On Areas Pick area number 11, then [OK] Set VALUE = 1000, then [OK] –Or issue: SFA,11,1,PRES,1000 7.Select the Sparse direct solver: –Main Menu > Solution > Analysis Type > Sol’n Control Pick the “Sol’n Options” tab Select the “Sparse direct” solver, then [OK] –Or issue: EQSLV,SPARSE 8.Save the database and obtain the solution: –Pick the “SAVE_DB” button in the Toolbar (or select: Utility Menu > File > Save as Jobname.db) –Main Menu > Solution > Solve > Current LS [OK] –Or issue: SAVE SOLVE

15 Workshop Supplement February 7, 2006 Inventory #002269 W10-15 10B. Loading and Solution Connecting Rod 9.After the solution is completed, enter the general postprocessor and plot the von Mises stress (SEQV): –Main Menu > General Postproc > Plot Results > Contour Plot > Nodal Solu Select Nodal Solution > Stress > von Mises stress, then [OK] –Or issue: /POST1 PLNSOL,S,EQV 10.Save the ANSYS database: –Pick the “SAVE_DB” button in the Toolbar

16

17 Wheel Workshop 10C Loading and Solution

18 Workshop Supplement February 7, 2006 Inventory #002269 W10-18 10C. Loading and Solution Wheel Description Apply loads to the wheel model shown in the next slide and solve using the SPARSE solver. The model has already been meshed with SOLID45 bricks, SOLID95 pyramids, and SOLID92 tets. Young’s Modulus has been set to 30e6 psi and density has been set to 0.00073 lbf-s 2 /in 4.

19 Workshop Supplement February 7, 2006 Inventory #002269 W10-19 10C. Loading and Solution Wheel Loads Angular Velocity of 525 rad/sec Constrain UY DOF on Node 33 Symmetry B.C. on Areas Symmetry B.C. on Areas

20 Workshop Supplement February 7, 2006 Inventory #002269 W10-20 10C. Loading and Solution Wheel 1.Enter ANSYS in the working directory specified by your instructor using “wheelb- omega” as the jobname. 2.Resume the “wheelb-omega.db1” database file: –Utility Menu > File > Resume from … Select the “wheelb-omega.db1” database file, then [OK] –Or issue: RESUME,wheelb-omega,db1 3.Select the areas from the area component name “areas_1”: –Utility Menu > Select > Component Manager Highlight areas_1 and click on the Select Component/Assembly Icon –Utility Menu > Plot > Areas –Or issue: CMSEL,S,AREAS_1 APLOT 4.Apply symmetry boundary conditions on the selected set of areas: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > Symmetry B.C. > On Areas [Pick All] –Or issue: /SOLU DA,ALL,SYMM

21 Workshop Supplement February 7, 2006 Inventory #002269 W10-21 10C. Loading and Solution Wheel 5.Select everything and plot areas: –Utility Menu > Select > Everything … –Utility Menu > Plot > Areas –Or issue: ALLSEL,ALL,ALL APLOT 6.To prevent rigid body motion, constrain UY translation on node 33: –Main Menu > Solution > Define Loads > Apply > Structural > Displacement > On Nodes Enter node number “33” in the ANSYS picking menu followed by [Enter] [OK] Set Lab2 = “UY”, then [OK] –Or issue: D,33,UY 7.Apply rotational velocity of 525 rad/sec about global Y axis: –Main Menu > Solution > Define Loads > Apply > Structural > Inertia > Angular Velocity > Global Set OMEGY = 525 [OK] –Or issue: OMEGA,0,525

22 Workshop Supplement February 7, 2006 Inventory #002269 W10-22 10C. Loading and Solution Wheel 8.Select the Sparse direct solver: –Main Menu > Solution > Analysis Type > Sol’n Control Pick the “Sol’n Options” tab Select the “Sparse direct” solver, then [OK] –Or issue: EQSLV,SPARSE 9.Save the database and obtain the solution: –Pick the “SAVE_DB” button in the Toolbar (or select: Utility Menu > File > Save as Jobname.db) –Main Menu > Solution > Solve > Current LS [OK] –Or issue: SAVE SOLVE

23 Workshop Supplement February 7, 2006 Inventory #002269 W10-23 10C. Loading and Solution Wheel 10.After the solution is completed, enter the general postprocessor and plot the von Mises stress (SEQV): –Main Menu > General Postproc > Plot Results > Contour Plot > Nodal Solu Select Nodal Solution > Stress > von Mises stress, then [OK] –Or issue: /POST1 PLNSOL,S,EQV

24 Workshop Supplement February 7, 2006 Inventory #002269 W10-24 10C. Loading and Solution Wheel 11.Expand the results about the Z-axis of local coordinate system 11 (cylindrical): –Utility Menu > WorkPlane > Change Active CS to > Specified Coord Sys … KCN = 11 [OK] –Utility Menu > PlotCtrls > Style > Symmetry Expansion > User-Specified Expansion... NREPEAT = 16 TYPE = “Local Polar” PATTERN = “Alternate Symm” DY = 22.5 [OK] –Or issue: CSYS,11 /EXPAND,16,LPOLAR,HALF,,22.5 /REPLOT

25 Workshop Supplement February 7, 2006 Inventory #002269 W10-25 10C. Loading and Solution Wheel 12.Turn expansion off: –Utility Menu > PlotCtrls > Style > Symmetry Expansion > No Expansion … –Utility Menu > Plot > Replot –Or issue: /EXPAND /REPLOT 13.Save and exit ANSYS: –Pick the “SAVE_DB” button in the Toolbar –Pick the “QUIT” button in the Toolbar

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