STRUCTURAL SOURCE IDENTIFICATION FROM ACOUSTIC MEASUREMENTS USING AN ENERGETIC APPROACH

被引：0
作者：
Samet, A. [1 ]
Ben Souf, M. A. [2 ]
Bareille, O. [1 ]
Ichchou, M. N. [1 ]
Fakhfakh, T. [2 ]
Haddar, M. [2 ]
机构：
[1] Ecole Cent Lyon, LTDS, Lyon, France
[2] Ecole Natl Ingenieurs Sfax, Mech Modelling & Prod Lab LA2MP, Sfax, Tunisia
来源：
JOURNAL OF MECHANICS | 2018年 / 34卷 / 04期
关键词：
Source localization; Inverse simplified energy method; Inverse problem; High frequencies; INVERSE METHOD; VIBRATING MEMBRANES; SIMPLE-MODELS; PLATES; FLOW; FORCE; RECONSTRUCTION; LOCALIZATION; BEAMS;
D O I：
10.1017/jmech.2017.24
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An inverse energy method for the identification of the structural force in high frequency ranges from radiated noise measurements is presented in this paper. The radiation of acoustic energy of the structure coupled to an acoustic cavity is treated using an energetic method called the simplified energy method. The main novelty of this paper consists in using the same energy method to solve inverse structural problem. It consists of localization and quantification of the vibration source through the knowledge of acoustic energy density. Numerical test cases with different measurement points are used for validation purpose. The numerical results show that the proposed method has an excellent performance in detecting the structural force with a few acoustical measurements.
引用
收藏
页码：431 / 441
页数：11
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