Acousto-elasticity of a Panel Backed by a Rectangular Cavity

  • S. Narayanan
  • D. Premachandran Pillai
Conference paper
Part of the IUTAM Symposia book series (IUTAM)


The problem of low frequency sound transmission and the structural response of a panel backed by a rectangular cavity is solved by a modal analysis. The matrix equations possessing gyroscopic coupling is reduced to a standard symmetric eigenvalue problem, the solution of which yields the natural frequencies and modes of the coupled acousto-elastic system. Special orthogonal relations of the eigenvectors of the gyroscopic system facilitate the response analysis.


Rectangular Cavity Cavity Pressure Power Spectral Density Function Wall Deflection Flexible Wall 
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    Dowell, E.H.: Acoustoelasticity. Princeton University AMS Report 1280 (1976).Google Scholar
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    Premachandran Pillai, D.: Acoustoelasticity of a flexible panel and a rectangular cavity. M. Tech thesis. Dept. Mech. Eng. I.I.T. Madras (1984).Google Scholar
  4. 4.
    Meirovich, L.; Ryland II, G.: Response of slightly damped gyroscopic systems. J. Sound and Vib. 67 (1979) 1–19.ADSCrossRefGoogle Scholar

Copyright information

© Springer, Berlin Heidelberg 1986

Authors and Affiliations

  • S. Narayanan
    • 1
    • 3
  • D. Premachandran Pillai
    • 2
  1. 1.Institut für Technische AkustikTechnische Universität BerlinGermany
  2. 2.Regional Engineering CollegeCalicutIndia
  3. 3.Department of Applied MechanicsIndian Institute of TechnologyMadrasIndia

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