257 両端自由はりの鋼球による衝突振動および音解析

概要

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It is known that collision may cause industrial problems such as radiation of impact noise, or may lead to structural damage. However, it is still not so clear that the mechanism of how the impact causes radiation of sound along with vibration of structures, that may be because the difficulty resides in measurement of impact responses for such a short time phenomena. In the present study, the impact system was introduced which consists of a steel ball and a beam. We investigated the relation between impact response of beam and radiated sound experimentally by simultanous measurement of beam transverse vibration and sound, compared with analytical solutions. The Wavelet analysis was applied for the model, and the performance of present analysis was discussed.
一般社団法人日本機械学会の論文
2000-09-01