Sound radiation from a flow-excited rectangular plate with visco-elastic supports

  • Junhong Park School of Mechanical Engineering, 1077 Herrick Laboratories, Purdue University, West Lafayette, IN 47907-1077, United States
  • Luc G. Mongeau School of Mechanical Engineering, 1077 Herrick Laboratories, Purdue University, West Lafayette, IN 47907-1077, United States
Keywords: Acoustic noise, Boundary conditions, Equations of motion, Mathematical models, Plates (structural components), Turbulent flow, Vibrations (mechanical), Viscoelasticity, Mach number, Sound radiation, Statistical energy analysis, Surface pressure field

Abstract

A model was developed to predict the vibration response of a rectangular plate mounted on viscoelastic supports. The plate was assumed to be excited by a distributed surface pressure field. The radiated sound was calculated from the transverse velocity of the plates. An assumption that all the vibration energy is constrained at the peak of mode shape wave number spectrum was used for the evaluation of the wave number spectrum. The damping factor, which is frequency dependent was calculated from the assumed mode method results.
Published
2000-09-01
How to Cite
1.
Park J, Mongeau LG. Sound radiation from a flow-excited rectangular plate with visco-elastic supports. Canadian Acoustics [Internet]. 2000Sep.1 [cited 2019Sep.19];28(3):100-1. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1309
Section
Proceedings of the Acoustics Week in Canada

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