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Published on: May 9, 2021
Acoustic radiation of a submerged cylindrical shell in low frequency
Julien Van de Loock1, Dominique Décultot, Fernand Léon
1Laboratoire Ondes et Milieux Complexes, Unité Mixte de Recherche Centre National de Recherche Scientifique 6294, Université Le Havre, Place Robert Schuman, 76600 Le Havre, France. julien.van-de-loock@univ-lehavre.fr
Abstract:
The evaluation of sound pressure levels produced by submerged structures is a part of regulations on underwater noise pollution. The purpose of this work is the study of the underwater acoustic radiation of a stainless steel tube subjected to vibrations generated by a shock obtained by using a hammer. The vibrations of the tube, placed successively in air and in water, are measured by using accelerometers. In water, the acoustic radiation measurements are performed by using a hydrophone. Results are presented as frequency spectra and are confronted with results of the elastic theory.
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