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Modal analysis of a small ship sea keeping trial

Metcalfe, A., Maurits, L., Svenson, T., Thatch, R. and Hearn, G.E. (2007) Modal analysis of a small ship sea keeping trial Australian and New Zealand Industrial Applied Mathematics: ANZIAM Journal, 47, (EMAC2005), C915-C933.

Record type: Article


Data from sea keeping trials of a Scottish trawler are analyzed. The trawler sailed an octagonal course, each leg took over 20 minutes and data recorded twice a second. The natural frequencies of vibration for each of the six rigid body modes are estimated from the heave, surge, sway, pitch, yaw and roll time series. The time series are investigated for evidence of non-linearity. A time domain model is fitted to a roll time series, and second order amplitude response functions are then obtained using autoregressive estimators.

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Published date: May 2007
Organisations: Fluid Structure Interactions Group


Local EPrints ID: 49199
ISSN: 1446-8735
PURE UUID: c527d341-b5a5-4188-b294-528c4502a6fc

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Date deposited: 24 Oct 2007
Last modified: 17 Jul 2017 14:56

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Author: A. Metcalfe
Author: L. Maurits
Author: T. Svenson
Author: R. Thatch
Author: G.E. Hearn

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