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

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Authors

  • W. J. RDZANEK Pedagogical University, Department of Acoustics, Poland
  • W. P. Jr. RDZANEK Pedagogical University, Department of Acoustics, Poland

Abstract

The imaginary part of the acoustic impedance of radiation of a planar, annular membrane is analyzed. Axially-symmetric free vibrations, sinusoidally varying in time, are considered. An annular membrane is placed in a planar, rigid baffle and radiates an acoustic wave into a loss-less, homogeneous, gaseous medium. The reactance of radiation is obtained in an elementary form for high frequencies of radiated waves.

References

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