Active control of sound within enclosure using piezoelectric actuators

被引：0
|
作者：
Shimada, Takayuki
Yamamoto, Sizuo
Sone, Akira
Masuda, Arata
机构：
来源：
Nippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C | 1997年 / 63卷 / 609期
关键词：
Actuators - Boundary element method - Computer simulation - Control - Eigenvalues and eigenfunctions - Enclosures;
D O I：
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中图分类号：
学科分类号：
摘要：
Enclosures of machines have openings that allow radiation of heat and sound leakage. It has been reported that a sound insulating device is effective for dissipating sound. In this paper, in addition to the conventional method, we suggest a method of oscillating the sound insulating device using a piezoelectric actuator to control it actively. First, eigenvalue analysis of sound field within an enclosure is conducted using BEM. Then, the state equation for sound field is derived. Finally, it is proven by numerical simulation that this proposed active control system can control sound within an enclosure successfully.
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页码：1603 / 1609
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