A method to calculate acoustic radiation modes based on spheroidal wave functions

被引：2
|
作者：
Wang, Yiming [1 ]
Liu, Yangfan [1 ]
Bolton, J. Stuart [1 ]
机构：
[1] Purdue Univ, Sch Mech Engn, Ray W Herrick Labs, 177 South Russell St, W Lafayette, IN 47907 USA
来源：
JASA EXPRESS LETTERS | 2021年 / 1卷 / 01期
关键词：
SOUND RADIATION; ACTIVE CONTROL;
D O I：
10.1121/10.0003047
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Acoustic radiation modes (ARMs) have been widely used in noise control engineering. For an arbitrarily shaped radiator, ARMs are usually obtained by using the boundary element method (BEM). For high frequencies and large structures, the BEM calculation is usually time consuming. An alternative method was recently developed in which the ARMs are obtained by using generalized singular value decomposition and spherical harmonic functions. In this paper, spheroidal harmonic functions are used instead of spherical harmonic functions. The proposed method is potentially more efficient for ARM calculations for structures with one dimension significantly larger than the other two.
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页数：8
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