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Analysis of wave slam induced hull vibrations using continuous wavelet transforms


Amin, W and Davis, MR and Thomas, GA and Holloway, DS, Analysis of wave slam induced hull vibrations using continuous wavelet transforms, Ocean Engineering, 58 pp. 154-166. ISSN 0029-8018 (2012) [Refereed Article]

Copyright Statement

Copyright 2012 Elsevier Ltd.

DOI: doi:10.1016/j.oceaneng.2012.10.011


Large high-speed wave-piercing catamarans are subject to continuous wave induced hull vibrations during their lifetime of operation. In severe sea conditions, the vessel experiences high load impacts, known as slamming, accompanied by high frequency structural response giving rise to fatigue effects. Classical vibration analysis techniques such as the Fourier Transform fail to identify the exact response frequencies of slamming events due to the transformation to the frequency domain and the loss of temporal information about these transient events which is of great importance to fatigue analysis. The work presented in this paper introduces, describes, applies and recommends the continuous wavelet transform as an effective means to investigate the wave induced hull vibrations in both the time and frequency domains simultaneously.

Item Details

Item Type:Refereed Article
Keywords:hull-induced vibrations, continuous wavelet transform, catamarans, slamming
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Transport
Objective Group:Water transport
Objective Field:Water transport not elsewhere classified
UTAS Author:Amin, W (Dr Walid Amin)
UTAS Author:Davis, MR (Professor Michael Davis)
UTAS Author:Thomas, GA (Professor Giles Thomas)
UTAS Author:Holloway, DS (Associate Professor Damien Holloway)
ID Code:81436
Year Published:2012
Web of Science® Times Cited:13
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2012-12-05
Last Modified:2015-07-10
Downloads:3 View Download Statistics

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