Frequency analysis of the acoustic pressure of nonlinear standing waves

Authors

  • Majid Nabvai Department of Mechanical and Industrial Engineering, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Que. H3G 1M8, Canada
  • M.H. Kamran Siddiqui Department of Mechanical and Industrial Engineering, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Que. H3G 1M8, Canada
  • Javad Dargahi Department of Mechanical and Industrial Engineering, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Que. H3G 1M8, Canada

Keywords:

Data acquisition, Frequency domain analysis, Nonlinear systems, Spectrum analysis, Frequency spectrum, Nonlinear standing acoustic waves, Standing wave tubes

Abstract

The acoustic pressure inside a nonlinear standing wave resonator in the frequency domain. and the effect of nonlinearity on the frequency spectrum of the pressure signal through numerical and experimental investigations are examined. Analytical. numerical and experimental analysis of linear and nonlinear standing acoustic waves in time and space domains have been extensively investigated. We have developed a setup to measure high-amplitude pressure inside the standing wave tube, and the setup consists of a rigid-walled tube of adjustable length, a driving system to excite the standing wave inside the tube, and data acquisition system. The measurements were made at five different locations along the channel center axis, at different excitation voltages. The frequency spectrum of the pressure and particle velocity' signals were analyzed at different frequencies by using verified model.

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Published

2007-09-01

How to Cite

1.
Nabvai M, Kamran Siddiqui M, Dargahi J. Frequency analysis of the acoustic pressure of nonlinear standing waves. Canadian Acoustics [Internet]. 2007 Sep. 1 [cited 2021 Oct. 25];35(3):150-1. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1945

Issue

Section

Proceedings of the Acoustics Week in Canada