ER 유체를 적용한 스마트 평판의 진동및 소음제어 특성

초록

This paper presents vibration and noise control of a flexible plate filled with an ER fluid. After manufacturing a sandwich type of the ER plate field-dependent mode characterisitcs are evaluated.In addition, noise control capability of the proposed smart plate is investigated by adopting a closed rectangular cabin which has one side of the Er plate. Controlled sound pressure level of the cabin is presented in both time and frequency domains.