Mutual-radiation efficiency estimation of vibration modes by finite element method and boundary element method software

被引：2
|
作者：
Wei, Lai [1 ]
Li, Sheng [1 ]
机构：
[1] Dalian Univ Technol, Sch Naval Architecture, State Key Lab Struct Anal Ind Equipment, Dalian, Peoples R China
来源：
JOURNAL OF LOW FREQUENCY NOISE VIBRATION AND ACTIVE CONTROL | 2022年 / 41卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Acoustic radiation; complex vibration modes; mutual-radiation efficiency; acoustic power; SOUND RADIATION; ACOUSTIC RADIATION; RECTANGULAR-PLATES; RESISTANCES;
D O I：
10.1177/14613484211073274
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
When the structure is forced to vibrate and multiple modes exist simultaneously, each vibration mode contributes to the total acoustic power radiated by the structure. Moreover, the acoustic radiation of each vibration mode is not independent of each other, and the coupling between them will also have an impact on the total radiated power. Mutual-radiation efficiency is an important metric to measure the ability of the coupling of different modes to radiate. In this note, for both real and complex modes, a method to calculate the mutual-radiation efficiencies by finite element method and boundary element method software is presented. Numerical examples are presented to illustrate and validate the approach.
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页码：1131 / 1142
页数：12
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