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2015 FSSIC - Croaker_Peters_Mulcahy_etal_paper_097.pdf (301.18 kB)

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

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conference contribution
posted on 2023-05-23, 10:51 authored by Croaker, P, Peters, H, Mulcahy, L, Kinns, R, Paul BrandnerPaul Brandner, Kessissoglou, N
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.

History

Publication title

Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control

Editors

Y Zhou, AD Lucey, Y Liu, L Huang

Pagination

95-100

ISBN

978-3-662-48866-9

Department/School

Australian Maritime College

Publisher

Springer-Verlag

Place of publication

Berlin, Germany

Event title

3rd Symposium on Fluid-Structure-Sound Interactions and Control

Event Venue

Perth, Australia

Date of Event (Start Date)

2015-07-05

Date of Event (End Date)

2015-07-09

Rights statement

Copyright 2015 Springer

Repository Status

  • Restricted

Socio-economic Objectives

Nautical equipment

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