The real acoustic power of a planar annular membrane radiation for axially-symmetric free vibrations

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Authors

  • W.J. RDZANEK Institute of Physics, Pedagogical University, Poland
  • W.P. RDZANEK Institute of Physics, Pedagogical University, Poland

Abstract

The real part of the acoustic power radiated by a planar annular membrane is considered for axially-symmetric free vibrations. The membrane is located in a planar, rigid baffle and radiate acoustic wave into a lossless and homogeneous fluid medium. Sinusoidal in time processes are examined. The real power is obtained as elementary form for high-frequency radiated waves.

References

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[2] H. LEVINE and F.G. LEPPINGTON, A note on the acoustic power output of a circular plate, Journal of Sound and Vibrations, 121, 2, 269-275 (1988).

[3] A.S. MERRIWEATHER, Acoustic radiation impedance of a rigid annular ring vibrating in an infinite rigid baffle, Journal of Sound and Vibrations, 10, 3, 369-379 (1969).