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SOUND FIELD ANALYSIS AROUND VIBRATING PLATE
Ante Skoblar
; Faculty of Engineering, University of Rijeka, Rijeka, Croatia
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
Publication date:
27.12.2006.
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