410 転動時自動車スムースタイヤのモデリングと振動挙動(境界領域I)

概要

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A precise modeling of a rolling automobile smooth tyre is carried out and through the analyses of its vibrational behaviors the mechanism of the noise generation is considered. The analysis is formulated by the Finite Element Method using a truncated conical shell element and includes the effects of the inner pressure, rotation, laminated anisotropic layer structure and damping matrix re-constructed from the modal damping ratios. Not only the linear but also the non-linear vibration analysis is executed by considering the effect of large deformation. The linear vibration response to the contact load with the smooth earth becomes the standing wave forms on the stationary co-ordinate, whereas the non-linear vibration response shows some amount of harmonic vibration components of tyre surface, and it results in the fact that the noises possibly generate even from a smooth tyre.
2001-08-03