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.


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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.

Item Type: Article
ISSNs: 1446-8735 (print)
Related URLs:
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Q Science > QA Mathematics
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 49199
Accepted Date and Publication Date:
May 2007Published
Date Deposited: 24 Oct 2007
Last Modified: 31 Mar 2016 12:26

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