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Advances in Acoustics and Vibration
Volume 2012 (2012), Article ID 581769, 9 pages
http://dx.doi.org/10.1155/2012/581769
Research Article

Vibration Transmission of a Cylindrical Shell with an Interior Rectangular Plate with the Receptance Method

School of Marine Engineering, Northwestern Polytechnical University, Shaanxi, Xi’an 710072, China

Received 3 May 2012; Accepted 7 August 2012

Academic Editor: Rama Bhat

Copyright © 2012 Zhimei Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Vibration transmission characteristics of a cylindrical shell with a rectangular plate are discussed in this paper by the substructure receptance method. The system is divided into two substructures: the plate and the shell. After finding the theoretical receptance function of each substructure, the coupling equation of the combined system is solved by considering the continuity conditions at the joint between the plate and the shell. The numerical results are compared with the experimental ones to show the validity of the formulation. After that, effects of the plate's parameters on vibration transmission characteristics are discussed. The parameter study shows that it is important to avoid impedance matching for the plate and the shell in the design of suitable structures with low vibration and noise radiation characteristics.