非平面波状态下消声器传递损失计算的能量叠加法
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- 英文论文题名：An energy superposition method for transmission loss prediction of silencer considering high-order mode effect
- 论文作者：杨亮 ; 季振林 ; 王世华
- 英文论文作者：YANG Liang ; JI Zhen-lin ; WANG Shi-hua ; College of Power and Energy Engineering ; Harbin Engineering University
- 年：2016
- 作者机构：哈尔滨工程大学动力与能源工程学院;
- 论文关键词：消声器 ; 传递损失 ; 非平面波 ; 边界元方法
- 英文论文关键词：Silencer ; Transmission loss ; non-planewave propagation ; Boundary element method
- 会议召开时间：2016-08-21
- 会议录名称：2016’中国西部声学学术交流会论文集
- 语种：中文
- 分类号：TB535.2
- 学会代码：SXJS
- 会议名称：2016’中国西部声学学术交流会
- 会议地点：中国四川成都
- 主办单位：中国声学学会微声学分会、中国声学学会物理声学分会、陕西省声学学会、浙江省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、水声技术重点实验室、重庆市声学学会、西安市声学学会、四川省声学学会
- 学会名称：《声学技术》编辑部
- 页数：4
- 文件大小：489k
- 原文格式：D
- 会议级别：全国
摘要
本文使用一种基于进出口单元声功率叠加的直接处理方法计算消声器平面波以上的传递损失,使用边界元方法计算得到进出口单元的声压及质点振速,通过声波分解及单元声功率叠加得到进口入射声功率及出口透射声功率用于传递损失的计算,通过与LMS Virtual.Lab中管道声模态方法计算结果的比较验证了能量叠加方法在实际问题中的适用性,并分析了方法在工程问题中的优势。
A direct energy superposition method is proposed in the paper to evaluate the transmission loss of silencers with large dimension inlet/outlet.The boundary element method is employed to calculate the acoustic power of inlet and outlet respectively after acoustic wave decomposition technique is applied to every single element at the inlet and outlet. The prediction results are compared to the LMS Virtual. Lab simulation to verify the present method. Furthermore, the application range and advantages of the direct methodology are analyzed.
A direct energy superposition method is proposed in the paper to evaluate the transmission loss of silencers with large dimension inlet/outlet.The boundary element method is employed to calculate the acoustic power of inlet and outlet respectively after acoustic wave decomposition technique is applied to every single element at the inlet and outlet. The prediction results are compared to the LMS Virtual. Lab simulation to verify the present method. Furthermore, the application range and advantages of the direct methodology are analyzed.
引文
[1]Selamet A,Ji Z L.Acoustic attenuation performance of circular expansion chambers with offset inlet/outlet:I.Analytical approach[J].Journal of Sound and Vibration,1998,213(4):601-617.
[2]Ji Z L.Boundary element acoustic analysis of hybrid expansion chamber silencers with perforated facing[J].Engineering Analysis with Boundary Elements,2010,34(7):690-696.
[3]Mehdizadeh OZ,Paraschivoiu M.A three-dimensional finite element approach for predicting the transmission loss in mufflers and silencers with no mean flow[J].Applied Acoustics,2005,66(8):902-918.
[4]Kirby R,Williams PT,Hill J.A three dimensional investigation into the acoustic performance of dissipative splitter silencers[J].The Journal of the Acoustical Society of America,2014,135(5):2727-2737.
[5]Yang L,Ji Z,Wu T W.Acoustic attenuation prediction of splitter silencers by using combined BEM and point collocation approach[C]//INTER-NOISE and NOISE-CON Congress and Conference Proceedings.Institute of Noise Control Engineering,2015,250(5):1891-1900.
[6]Lou G.,Wu T W,Cheng CYR Boundary element analysis of packed silencers with a substructuring technique,Eng Anal Bound Elem 2003;27:643-653.
[2]Ji Z L.Boundary element acoustic analysis of hybrid expansion chamber silencers with perforated facing[J].Engineering Analysis with Boundary Elements,2010,34(7):690-696.
[3]Mehdizadeh OZ,Paraschivoiu M.A three-dimensional finite element approach for predicting the transmission loss in mufflers and silencers with no mean flow[J].Applied Acoustics,2005,66(8):902-918.
[4]Kirby R,Williams PT,Hill J.A three dimensional investigation into the acoustic performance of dissipative splitter silencers[J].The Journal of the Acoustical Society of America,2014,135(5):2727-2737.
[5]Yang L,Ji Z,Wu T W.Acoustic attenuation prediction of splitter silencers by using combined BEM and point collocation approach[C]//INTER-NOISE and NOISE-CON Congress and Conference Proceedings.Institute of Noise Control Engineering,2015,250(5):1891-1900.
[6]Lou G.,Wu T W,Cheng CYR Boundary element analysis of packed silencers with a substructuring technique,Eng Anal Bound Elem 2003;27:643-653.