Acoustic pressure of circular plate vibrating in a finite baffle with fluid loading

• Autorzy: Leniowska L.
• Konferencja: International Symposium on HYDROACOUSTICS AND ULTRASONICS EAA Symposium (formerly 13th FASE Symposium) Gdańsk-Jurata, 12-16 May 1997
• Języki publikacji: EN

Abstrakty

EN

In this paper the problem of calculating the acoustic pressure around a thin circular plate is analysed. It was assumed that the plate was clamped at the circumference of the planar finite baffle and radiated into a lossless homogeneous medium. A model of the plate included internal dissipation in the plate's material and the influence of the acoustic wave radiated by the plate on its vibrations. The vibrations of the plate were forced by time-harmonic external pressure. The acoustic pressure was calculated on the basis of the known distribution of vibration velocity in a series of eigenfunctions, using properties of the oblate spheroidal coordinates. The result was obtained as a single series of spheroidal function products. The number of terms ensuring a required accuracy could be determined numerically.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1997
• Tom: Vol. 1
• Strony: 311--316
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Leniowska L.

• Institute of Technology, Pedagogical University in Rzeszów 35-310 RZESZÓW, ul. Rejtana 16a

Bibliografia

• [1] Crighton D. G., (1989), The 1988 Rayleigh Medal Lecture: Fluid loading - the interaction between sound and vibration, 133(1), 1-27.
• [2] Flammer C. , Spheroidal wave functions , Stanford University Press, 1957.
• [3] Kwak M.K., Kim K.C., (1991), Axisymmetric vibration of circular plates in contact with fluid, Jour. of Sound and Vibration, 146(3),381-389.
• [4] Leniowska L.,Rdzanek W.,Witkowski P., (1994), The influence of interaction of surrounding on the distribution of acoustic pressure around circular plate , Proceedings of XLI Open Seminar on Acoustics, Wrocław ,141-144 (in polish)
• [5] Leniowska L., (1994), Acoustcs field of circular plate vibrating in a finite baffle with regard to influence of surroundings, Proceedings of XLI Open Seminar on Acoustics, Wrocław ,137-140 (in polish)
• [6] Leniowska L., Rdzanek W., Acoustial field of circular plate freely vibrating without a baffle, Archives of Acoustics, 17,3,71-81(1992).
• [7] Levine H., Leppington F.G., A note on the acoustic power output of a circular plate, Journal of Sound and Vibration, 121, 2, 269-275(1988).
• [8] Rdzanek W. (1991), Acoustic radiation of circular plate including the attenuation effect and influence of surroundings, Archives of Acoustic, 16, 3-4, 581-590,