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Virtual Tool to Predict Trunk Spring Movement Including Tolerance Variation

Journal Article
2015-01-0489
ISSN: 1946-3979, e-ISSN: 1946-3987
Published April 14, 2015 by SAE International in United States
Virtual Tool to Predict Trunk Spring Movement Including Tolerance Variation
Sector:
Citation: Rogers, J., "Virtual Tool to Predict Trunk Spring Movement Including Tolerance Variation," SAE Int. J. Mater. Manf. 8(3):697-703, 2015, https://doi.org/10.4271/2015-01-0489.
Language: English

Abstract:

A 3D-and-Excel-based predictive tool was developed to determine trunk spring movement for preventing recurrence of a noise problem. While effective, the tool could not completely explain measured results on the completed body unit (CBU). Since design data is used as the input, it was hypothesized that the difference between predicted and actual results was related to tolerance variation on the actual vehicle.
Using Siemens® Variation Analysis software, the CBU was built and simulated virtually with tolerances using a Monte Carlo model. The study found that the hypothesis was correct; tolerance variation was fully responsible for the differences. In addition, the study also allowed accurate prediction of failure rates.