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Structural and acoustic responses of a fluid loaded shell due to propeller forces


Croaker, P and Peters, H and Mulcahy, L and Kinns, R and Brandner, PA and Kessissoglou, N, Structural and acoustic responses of a fluid loaded shell due to propeller forces, Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control, 5-9 July 2015, Perth, Australia, pp. 95-100. ISBN 978-3-662-48866-9 (2016) [Refereed Conference Paper]


Copyright Statement

Copyright 2015 Springer

DOI: doi:10.1007/978-3-662-48868-3_15


The low frequency structural and acoustic responses of a fluid loaded shell to propeller induced fluid pressures are investigated. The propeller operates in the non-uniform wake field and produces fluctuating pressures on the blades of the propeller. This in turn generates acoustic waves and a near field that excites the surface of the shell. The resulting incident pressure is scattered and diffracted by the shell surface, and also excites structural vibration. A potential flow panel code is coupled with the Ffowcs-Williams and Hawkings acoustic analogy to predict the fluctuating propeller forces, blade pressures and the resulting incident field on the surface of the fluid loaded shell due to operation of the propeller in a non-uniform inflow. The propeller induced incident pressure field is then combined with a coupled three-dimensional finite element/boundary element model of the submerged shell to predict the vibro-acoustic and scattered field responses.

Item Details

Item Type:Refereed Conference Paper
Keywords:unsteady propeller forces, structural reponse, acoustic response, coupled FEM/BEM
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Manufacturing
Objective Group:Transport equipment
Objective Field:Nautical equipment
UTAS Author:Brandner, PA (Professor Paul Brandner)
ID Code:106658
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-02-17
Last Modified:2018-04-05
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