Presenter: Saurav Kakar, FEA Variation Analyst
3DCS Compliant ModelerThermal and Gravity Effects
CM Overview
• Use Finite Element Data
• Apply forces to your model GravityThermalClampingWeldingFlexing
• 3DCS Add-on
Example - Thermal
Environmental Temperature
Not welding process
D CS Car Company
http://polyadhawaiitours.com/
DOOR WON’T OPEN!
BUMPER LOOSE!
How did this happen?
Vehicle Problems
Solutions
Option A. New cooling systems
Option B. Design out the variation
Gravity – Why Bother?
http://milestone26.blogspot.com/
Unanticipated Variation
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
Modeling Both
Model Summary
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
• Determine mounting or attachment locations to reduce the variation.
Solutions
Dimensional Control Systems Inc.580 Kirts Blvd.Troy, Michigan48315USA
MAIN OFFICE: 248-269-9777WEB: WWW.3DCS.COMEMAIL: [email protected]
Questions?
