Abstract
The results of studying the energy flow in and the acoustic radiation from a fluid‐loaded panel using the energy accountancy method are reported. Energy components are defined for the excitation, structural dissipation, and acoustic radiation in terms of excitation parameters, the structure, the medium, and the fluid‐structural coupling factor. Using the energy components, a balance equation is written. The method is evaluated for a point excited flat plate with clamped edges. The plate is subjected to air loading on one side and water loading on the other. A comparison is made between the predicted energy balance terms using the accountancy approach and experimentally measured results. The energy balance equation provided good results between 50 Hz and 12 kHz.
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