Compliant Modeler brings dimensional analysis to a new level. As the primary tolerance analysis tool for CATIA version 5 and 6, 3DCS and its add-on Compliant Modeler let the user turn their models into virtual prototypes, accurately reflecting assembly processes, material deformation and composite properties. This lets the user account for forces and how the specific materials of their product will be affected by the forces, such as gravity, heat, welding, clamping and bending. This presentation shows an example of adding thermal environment and gravity to the rear bumper of an automobile. Find out more at www.3dcs.com/3dcs-add-on-fea-compliant-modeler.html

1. 3DCS Compliant Modeler
Thermal and Gravity Effects
Presenter: Saurav Kakar, FEA Variation Analyst

2. • Use Finite Element Data
• Apply forces to your
model
 Gravity
 Thermal
 Clamping
Welding
 Flexing
• 3DCS Add-on

3.  Environmental Temperature
 Not welding process
D
C S Car Company

4. DOOR WON’T OPEN!
BUMPER LOOSE!
How did this happen?
http://polyadhawaiitours.com/

5. Option A. New cooling systems
Option B. Design out the variation

6. http://milestone26.blogspot.com/

7.  When part is released from tooling
Determinant Assembly processes: if the part is supposed to
self-support; will gravity cause undue variation?
Component placement and weight distribution - optimize the
design to account for the weight of the product

9. S No. Effect of
Gravity(mm)
Effect of
Thermal(mm)
M1 2.71 8.51
M2 2.28 6.88
M3 1.83 5.41
M4 1.79 5.19
M5 2.64 6.90
M6 2.25 5.77
M7 1.52 3.73
Nominal Measurements

10. • Determine mounting or attachment locations
to reduce the variation.