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
conference contribution
posted on 2023-05-23, 10:51 authored by Croaker, P, Peters, H, Mulcahy, L, Kinns, R, Paul BrandnerPaul Brandner, Kessissoglou, NThe 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 ControlEditors
Y Zhou, AD Lucey, Y Liu, L HuangPagination
95-100ISBN
978-3-662-48866-9Department/School
Australian Maritime CollegePublisher
Springer-VerlagPlace of publication
Berlin, GermanyEvent title
3rd Symposium on Fluid-Structure-Sound Interactions and ControlEvent Venue
Perth, AustraliaDate of Event (Start Date)
2015-07-05Date of Event (End Date)
2015-07-09Rights statement
Copyright 2015 SpringerRepository Status
- Restricted