Concept Design Using Topology and Topography Optimization

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Chapter 2: Topology Optimization of an Automotive Control ArmAssign the material to the components1. Remain in the collectors panel, and select the update subpanel.2. Change the collector type to comps.3. Click the yellow comps button.4. Activate components, design and non-design (click the box on the left of each).5. Click select.6. Click material= and select steel.7. Click the green update button.8. Activate material id.9. Click update.The MID fields for both components should now be set to 1 since only one material isdefined. The following steps allow you to verify the card image for each componentto ensure the MID fields are updated.10. Select the card image subpanel.11. Click name = twice and select nondesign.12. Select card image = and choose PSOLID.13. Click load/edit.14. Verify MID is 1.15. Click return.16. Repeat 10 through 15 for the design component.17. Click return.Step 3: Apply boundary conditions and loadsCreate the load collectorsThis problem requires four load collectors, one for boundary conditions and three forforces in the x, y, and z-axis at node 2699. To accomplish this, give each collector ameaningful name, assign it a color, then create it. The following steps take you throughthis process for all four collectors.1. On the collectors panel, select the create subpanel.2. Set the collector type: to loadcols (click on the switch to the right of collector type:and choose loadcols from the pop up menu).3. Click name = and type spc.28Concept Design Using Topology and Topography Optimization OptiStruct 7.0Proprietary Information of Altair Engineering, Inc.
Chapter 2: Topology Optimization of an Automotive Control Arm4. Click color and select green (color 10).5. Click create.6. Click name= and type brake.7. Click color and select yellow (color 12).8. Click create.9. Click name= and type, corner.10. Click color and select orange (color 13).11. Click create.12. Click name = and type, pothole.13. Click color and select red (color 15).14. Click create.15. To review all of the collectors, click name = twice and read through the list. Thenclick return to bring up the collectors panel.16. Click return to go back to the main screen.Apply constraints to the modelThe model needs to be constrained using single point constraints at the two bushinglocations. Apply constraints dof1, dof2 and dof3 at one end of the bushing and dof2,dof3 at the other end. Apply constraint dof3 on node 3239.1. Click global in the permanent menu, then click loadcol=.2. Select spc from the list.3. Click return.4. From the BCs page, select the constraints panel.5. Select the foreground node at one end of the bushing (see Figure 2-2) and constraindof1, dof2 and dof3.DOFs Definition1 Translation on x-axis.2 Translation on y-axis.3 Translation on z-axis.4 Rotation on x-axis.5 Rotation on y-axis.6 Rotation on z-axis.Make sure dofs 1,2 and 3 have been checked.OptiStruct 7.0Concept Design Using Topology and Topography OptimizationProprietary Information of Altair Engineering, Inc.29
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Chapter 6Combined Topology andTopog
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Concept Design Using Topology and Topography Optimization

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