Effect of Plate Vibration Control by the Use of Piezoelectric Actuators on Its Sound Radiation Attenuation

• Autorzy: Leniowska L.
• Języki publikacji: EN

Abstrakty

EN

The purpose of this paper is to examine the effect of active vibration control strategy on the sound radiation generated by the plate with the surface mounted circular piezoceramic elements. It was assumed that a planar vibrating structure located in a finite baffle and interacted with fluid is driven by a periodic force with constant amplitude. This structure radiates the acoustic waves into a surrounding fluid and the piezoelectric actuators are used to reduce its vibrations. The acoustic pressure was calculated on the basis of the known distribution of vibration amplitude in a series of eigenfunctions. For the designing process this continuous model was reduced and approximated by the linear state model while the orthogonal series method was applied. The simulations of the active cancellation of the plate vibrations were made with a Simulink/Matlab computer program. The results demonstrate, that while a control law provided a significant reduction in the plate vibration, it is rather ineffective for noise attenuation.

• Wydawca: Silesian Division of Polish Acoustical Society
• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 2005
• Tom: Vol. 26
• Strony: 191--204
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Leniowska L.

• Institute of Technology, University of Rzeszów, Rejtana 16, 35-310 Rzeszów, Poland

Bibliografia

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