10408 振動に起因して発生する異音評価手法について

抄録

This paper is intended to improve the accuracy of the rattle noise evaluation method using a shaker. In the conventional method, there was a problem that can't detect the occurrence of a little sound of rattle noise due to the radiated sound from the shaker. In this study, we investigated the characteristics of the radiated sound of rattle noise, and examined the valid evaluation method to detect the occurrence of rattle noise. As a result, by extracting the radiated sound of a specific frequency range, it was shown that we can make evaluations of the presence or absence of rattle noise and identifying the generation frequency even in measurement environment that contains the sound of radiated from the shaker.