The document discusses advanced compliant variation analysis using finite element analysis (FEA) compliant modeling. It describes how compliant modeling uses FEA to simulate variation in assemblies with deformable parts. Key benefits of compliant modeling include more accurate analysis, faster model building, and the ability to analyze effects like gravity, thermal impacts, and assembly sequences. Examples shown include analyzing ground clearance of an aircraft wing and hood-to-fender flushness variation in a car. The document also outlines the compliant modeling process and interfaces with FEA software.
19. Add a pair of bumpers to contour the Hood to the Fender
and reduce flush variation…
but where?
20. 1. Front 2. Mid 3. Mid2 4. Upper
Determine the location of lowest flush variation between
Hood and Fender.
Simulate the placement of Bumpers at (4) locations:
24. 1. Front
2. Mid
3. Mid2
4. Upper 2.173 mm
2.172 mm
2.305 mm
2.328 mm
2.483 mm0. None
Mid2 bumper location is best for Hood to Fender flushness.
Avg. Est. Range at Bumper Locations
30. Product Mesh File Extension Stiffness Matrix Extension
Abaqus .inp .mtx
Nastran .bdf, .blk, .dat, .nas .bdf
Optistruct .fem, .parm .dmig
MSC Nastran .dat .pch
*DCS is constantly adding new features and functions, making
this list subject to change