Modal Parameter Validation in Coupled Vibro-Acoustical System

Yi Feng Xu; Jun Wang

doi:10.4028/www.scientific.net/AMR.301-303.629

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 301-303Modal Parameter Validation in Coupled...

Modal Parameter Validation in Coupled Vibro-Acoustical System

Abstract:

The aim of this paper is to validate the modal parameters used in coupled structural finite element and acoustic boundary element algorithm to analysis the structure subjected to diffuse acoustic field. The theoretical deduction of non-symmetric coupled vibro-acoustical modal analysis was introduced firstly. In order to verify the modal truncation frequency how to affect the simulation results, based on the reciprocity theorem used in coupled FE-BE model, three different truncation frequency conditions were performed. The contrastive results show that twice the upper calculation frequency as the truncated modal frequency can make the simulation effectively and efficiently.

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Periodical:

Advanced Materials Research (Volumes 301-303)

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629-634

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https://doi.org/10.4028/www.scientific.net/AMR.301-303.629

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Online since:

July 2011

Authors:

Yi Feng Xu, Jun Wang

Keywords:

Diffuse Field, Modal Analysis, Numerical Simulation, Reciprocity Theorem, Vibro-Acoustic

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