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SOUND FIELD ANALYSIS AROUND VIBRATING PLATE

Ante Skoblar ; Tehnički fakultet Sveučilišta u Rijeci, Rijeka, Hrvatska

Sažetak

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.

Ključne riječi

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

Hrčak ID:

28421

URI

https://hrcak.srce.hr/28421

Datum izdavanja:

27.12.2006.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.118 *