Coupling effects of boundary restraining stiffness and tension force on sound attenuation of a cavity-backed membrane duct silencer

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• 作者：Yang Liu ; Jingtao Du ; ^{dujingtao@hrbeu.edu.cn}
• 关键词：Drum-silencer ; Cavity-backed membrane ; Elastic restraints ; Improved Fourier series
• 刊名：Applied Acoustics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：117
• 期：part_PA
• 页码：150-159
• 全文大小：1329 K
• 卷排序：117

文摘

Cavity-backed membrane duct silencer is modeled by a modified Fourier series. Fully structural-acoustic coupling is considered based on energy principle. Good agreement has been obtained with those from another approach in literature. Coupling of boundary stiffness and tension force is significant for performance.