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利用迭代正则法重构振动声源
引用本文:姜菊萍,姜哲.利用迭代正则法重构振动声源[J].噪声与振动控制,2006,26(5):34-36.
作者姓名:姜菊萍  姜哲
作者单位:江苏大学,振动噪声研究所,江苏镇江,212013
摘    要:基于声辐射模态分析,建立了外部场压和结构表面振动速度之间关系的传递矩阵。由辐射声压重构结构表面振动速度和声场声压存在解的离散病态问题,试图利用一种迭代正则化方法来解决此类逆问题。以振动平板为例,分别对简单振速分布和复杂振速分布采用迭代正则化方法进行了重构。数学计算结果与设定振速分布一致,同时收敛速度也很快。

关 键 词:声学  声辐射模态  迭代正则法  振动速度  重构
文章编号:1006-1355(2006)05-0034-03
收稿时间:2005-11-16
修稿时间:2005年11月16

Vibrating Resources Reconstruction using Iterative Regularization
JIANG Ju-ping,JIANG Zhe.Vibrating Resources Reconstruction using Iterative Regularization[J].Noise and Vibration Control,2006,26(5):34-36.
Authors:JIANG Ju-ping  JIANG Zhe
Affiliation:Vibration and noise Research Division, Jiangsu University, Zhenjiang Jiangsu 212013, China
Abstract:Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed. Since there exists ill-posedness in reconstructing velocity on the surface and reconstructing pressures in the field, This paper attempts to introduce an iterative regularization method to resolve such inverse problems. For a vibrating plate, the vibrating velocity is reconstructed by iterative regularization method. The numeral calculation resuits agree with the given velocity distribution, and the rate of convergence is quick.
Keywords:acoustics  acoustic radiation mode  iterative regularization method  vibrating velocity  reconstruction
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