Recent Developments in predicting propeller-induced hull pressure pulses
AuthorsWijngaarden, E. van
Conference/Journal1st International Ship noise and vibrations conference, Lloyd's Maritime Academy Suite, London, UK
Date20 Jun 2005
Collapsing cavities on or in Üie vicinity of ship propeller blades cause pressure pulses which excite the huil structure above the propeller. Inevitably, this leads to higher noise and vibration levels in public spaces on board. Because of more demanding comfort criteria the prediction of propeller-induced huil pressure pulses is still an important issue in ship design. In this paper some recent developments are presented in the prediction of huil excitation forces either through model basin tests, by computational means, or through feedback obtained from sea trials. Special attention is paid to ongoing European projects and other cooperative research initiatives that are considered helpful in improving prediction techniques.
Erik van Wijngaarden
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sustainable propulsionnoise and vibrationresistance and propulsionresearch and developmentresearch