128 - FEA Model Preparation using Solid Edge's Synchronous Technology

Transcription

1 4 th Generation VLC courtesy of Edison FEA Model Preparation using Solid Edge's Synchronous Technology Kevin Baxter, Consultant Page 1 #SEU13

2 Agenda: FEA Model Preparation using Solid Edge's Synchronous Technology Who am I? Solid Edge capabilities Demonstrate how to use Solid Edges capabilities How to learn more 4 th Generation VLC courtesy of Edison2 Page 2

3 Who Am I: Kevin Baxter Kevin Baxter owns Solid Solutions Mechanical Engineer (20 years) Specializes in PDM, 3D modeling, Analysis and Design Solutions Using Solid Edge for 10 years Kevin has a BSME from Cal Poly SLO and is an Professional Engineer in Idaho. Page 3 3

4 Solid Edge Capabilities Solid Edge Capabilities Surface Modeling Extend existing surfaces Trim with Planes, Lines and existing Surfaces Split with Planes, Lines and existing Surfaces Bounded Surface Creation Synchronous Technology Fast Edits Quickly Copy existing Geometry / Surfaces Edit Orientation Quickly Page 4 4

5 FEMAP Issues When Meshed Do you have geometry issues? You ll see skewed Elements in Mapped Mesh Page 5 5

6 How to use Solid Edge for FEMAP model preparation, OPEN File Import model into a Part file. (exported from FEMAP) Options to use Open using a PAR template Page 6 6

7 File As Imported to Solid Each Surface is it s own Part Copy in the feature tree. Page 7 7

8 Check for Problems Use Geometry Inspector Page 8 8

9 Remove sliver surfaces and small faces Extend, Trim as needed Page 9 Start to Repair problem areas This is the only way to remove problem edges of the surfaces. (Alternative is to use the join edges by point in FEMAP which presents other unpredictable issues as the analysis or geometry changes) Copy/Move geometry with Solid Edges Synchronous ability Select known good Surface Shift + Click on Primary axis of Steering Wheel (StgWh) 9

10 Extend Surfaces / Trim Pick a Surface to start cleaning up Copy other surfaces to its extents to trim to Extend all directions and trim Page 10 10

11 Reduced Small Entities Page 11 11

12 Extend / Trim to Snap to Edges Midpoint Page 12 12

13 Mirror Good Geometry Transition to Ordered Mode Mirror Geometry Move New Geometry to Synchronous Page 13 13

14 Trim New Geometry Transition to Synchronous Extend / Trim New Geometry Page 14 14

15 Finish Fixing Errors Now reduced to 7 errors Page 15 15

16 Check Surface Alignment Small angular errors can be present depending on the CAD system, or bad modeling. Page 16 16

17 Aligning Surface to Existing Edge Select Surface and move StgWh to endpoint on corner Realign by selecting Shift+Plane (of StgWh) Page 17 17

18 Aligning Surface to Existing Edge Align to StgWh to Edge, allowing a rotation of plane Page 18 18

19 Aligning Surface to Existing Edge Align Primary and Secondary axis of StgWh to edge of Plane Page 19 19

20 Rotate Surface to Align with Edge Now that StgWh is aligned to surface Select StgWh, rotate / align to existing geometry on square surface. Page 20 20

21 Fix Remaining Model Errors Extend / Trim Center Gussets Align Hole To Center Plane Add Dim s to know where Geometry is Page 21 21

22 Mirror Remaining Geometry H Page 22 22

23 Extend / Trim Center Gusset Extend Center Gusset upward Add Keypoint Curve to trim to Page 23 23

24 Export Model to Parasolid, X_T In S.E., Turn off all Curves, Planes, PMI Use Options: Export sheets Export Displayed Page 24 24

25 Import and Set FEMAP Req d Data Mesh and Run: Page 25 25

26 FEMAP Results Page 26 26

27 Summary of Surfacing Tools Solid Edge Tools Page 27 Surfacing Extend existing surfaces Trim with Planes, Lines and existing Surfaces Split with Planes, Lines and existing Surfaces Bounded Surface Creation Keypoint Curves for trimming Point to Point Intersection for Complex 3D Geometry Modeling Mirror Selected model geometry Transition to (Ordered or Synchronous) 27

28 Summary of Synchronous Tools Steering Wheel Manipulation Select Geometry Manipulate with Steering Wheel Operations CTRL+Click Axis, Copies selected geometry for placement Shift+Click Plane, Rotates Steering Wheel and Axis Synchronous Suspend Live Rules as needed Page 28 28

29 Watch out for Gotcha s In FEMAP use Geometry, Mid-Surface, INTERSECT Page 29 NOT Join, Unpredictable during some operations Avoid Stitching Model Together, doesn t always produce desired result Less control of how surfaces behave May not be able to add surfaces to stitched body depending on sequence of surfaces 29

30 Questions For more info, presentation and models download: See solidedge.3dtuts.com Tutorials coming soon! Page 30 30