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http://dx.doi.org/10.5050/KSNVE.2011.21.5.430

An Analysis of Vibration and Sound Radiation of Sandwich Panels Using the Rayleigh-Ritz Method  

Kim, Dong-Kyu (한양대학교 기계공학과)
Kim, Jae-Hyun (한양대학교 기계공학과)
Jeon, Jin-Yong (한양대학교 건축공학부)
Park, Jun-Hong (한양대학교 기계공학부)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.21, no.5, 2011 , pp. 430-436 More about this Journal
Abstract
The purpose of this study is to analyze the vibration and sound generation characteristics of the sandwich panel. Two thick panels were assumed to be separated by a compliant viscoelastic core. The transverse vibration induced by an external impact was analyzed using the Rayleigh-Ritz method. For applying arbitrary boundary condition of the panels, the edges were assumed to be supported by the translational and rotational springs. The beam functions were used as the trial functions. The effect of the boundary condition and viscoelastic core on the resulting vibration characteristics was investigated. The radiated sound power was analyzed using the proposed numerical model and the Rayleigh integral. The dynamic properties of the core and the mass-stiffness-mass resonance frequency had significant influence on the impact sound.
Keywords
Sandwich Panel; Rayleigh-Ritz Method; Sound Power;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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