Acoustical Physics

, Volume 64, Issue 5, pp 563–566 | Cite as

Acoustic Resistance of an Orifice at High Sound Pressure Levels

  • A. I. KomkinEmail author
  • A. I. Bykov
  • M. A. MironovEmail author


The effect of sound pressure level on acoustic resistance of an orifice in a baffle is investigated based on the measurements in an impedance tube by the two-microphone method. Dependences of the resistance of an orifice on the diameter of the latter are obtained for the case of nonlinear mode of operation. It is shown that, in this case, the resistance of the orifice depends on its diameter. The dependence of the nonlinear resistance on particle velocity in the orifice is approximated by a linear function.


baffle orifice acoustic impedance linear resistance nonlinear resistance measurement 



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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Bauman State Technical UniversityMoscowRussia
  2. 2.Andreev Acoustics InstituteMoscowRussia

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