Abstract

The influence of shape differences between the experimental part and the CAD shape, which is thought to be an error factor in the finite element method, was verified. Three-dimensional shape measurement and modeling technologies were applied to power train structural parts that have a complex shape, and a finite element model was created that reproduces the real shape. The shape error between the real shape and the CAD shape of a prototype transmission case was clarified, and the vibration characteristics of a model created from the CAD and a model created from the real shape were compared and verified. The results confirmed that shape error has a noticeable influence, particularly in the high frequency mode shape. These results clearly showed the importance of shape reproducibility in a finite element model, and proved that real shape measurement technology can be used as an accurate modeling tool for the finite element method.

References

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Author (organization or company)

• Naoki KAMIMURA（Tochigi R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.20 No.1 (155 - 162)

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