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  5. Acoustic attenuation prediction of perforated silencers using fast multipole mixed-body boundary ele

Acoustic attenuation prediction of perforated silencers using fast multipole mixed-body boundary ele

来源 :第五届亚太国际工程中计算方法学术会议暨第11届全国工程计算方法学术会议 | 被引量 : 0次 | 上传用户：wuwuwujduuez
【摘 要】
：
　　The perforated silencers are widely used in practical applications.One may face great challenge to model and calculate the transmission loss(TL)of perforate
【作 者】
：
Liang Yang Zhenlin Ji 
【机 构】
：
CollegeofPowerandEnergyEngineering,HarbinEngineeringUniversity,Harbin,Heilongjiang,150001,China
【出 处】
：
第五届亚太国际工程中计算方法学术会议暨第11届全国工程计算方法学术会议
【发表日期】
：
2015年10期
【关键词】
：
Perforated silencer Transmission loss Mixed-body boundary element method Fast mu 
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　　The perforated silencers are widely used in practical applications.One may face great challenge to model and calculate the transmission loss(TL)of perforated silencing devices,especially for two-pass or three-pass perforated tube silencers with a large number of perforated areas.The mixed-body boundary element method(MBEM)begins with the conventional multi-domain BEM by subdividing the acoustic domain into several well-defined substructures.The Helmholtz integral equation may be written for each individual substructure.
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