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Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 26 No. 1-2, 2006.

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SOUND FIELD ANALYSIS AROUND VIBRATING PLATE

Ante Skoblar ; Faculty of Engineering, University of Rijeka, Rijeka, Croatia

Full text: croatian pdf 161 Kb

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Full text: english pdf 161 Kb

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Abstract

In this paper analytical, numerical and experimental approaches in dealing with problem of created sound field around vibrating plate are presented. Eigenvalues of wedged plate are analytically calculated. Finite element method for calculating plate eigenvalues and plate response to point sinusoidal force and eigenvalues of sound field and response of sound field around vibrating plate is applied. Structure waves are defined with displacements and fluid waves with acoustical pressure. Experimental model of wedged plate with sinusoidal exciter and corresponding sensor support is built. Sound-protecting shield for cancellation of surrounding noise influence on plate sound was built.

Keywords

plate vibrations; acoustical waves; sound radiation; finite element method; computer

Hrčak ID:

28421

URI

https://hrcak.srce.hr/28421

Publication date:

27.12.2006.

Article data in other languages: croatian

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