Modelling the Effect of Flexural Vibration on Sound Absorption of A Micro-perforated Panel Using Wave Propagation Method

Micro-perforated panel (MPP) is well known as the alternative green sound absorbing material replacing the synthetic porous absorber. Several works have been established which model the sound absorption performance of the MPP with various arrangements. However, most existing models are for MPP wi...

全面介紹

Saved in:
書目詳細資料
Main Authors: Putra, Azma, Sajidin, Muhammad, Salleh, Norliana
格式: Article
語言:English
出版: Trans Tech Publications 2013
主題:
在線閱讀:http://eprints.utem.edu.my/id/eprint/8916/1/Modelling_the_Effect_of_Flexural.pdf
http://eprints.utem.edu.my/id/eprint/8916/
標簽: 添加標簽
沒有標簽, 成為第一個標記此記錄!
機構: Universiti Teknikal Malaysia Melaka
語言: English
實物特徵
總結:Micro-perforated panel (MPP) is well known as the alternative green sound absorbing material replacing the synthetic porous absorber. Several works have been established which model the sound absorption performance of the MPP with various arrangements. However, most existing models are for MPP with rigid condition and rarely discuss the effect of vibration due to the impinging sound. In this paper, a simple approach using wave propagation technique is proposed to take into account the effect of flexural wave in the MPP on its sound absorption. The model begins with an MPP coupled with a solid panel separated by an air gap. The impedance of the back solid panel can then be adjusted to a very large value to simulate a rigid wall.