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Identification of slam events experienced by a high-speed craft
Citation
Magoga, T and Aksus, S and Cannon, S and Ojeda, R and Thomas, G, Identification of slam events experienced by a high-speed craft, Ocean Engineering, 140 pp. 309-321. ISSN 0029-8018 (2017) [Refereed Article]
Copyright Statement
Copyright 2017 Crown Copyright
DOI: doi:10.1016/j.oceaneng.2016.07.017
Abstract
Ship structures are prone to fatigue cracking due to fluctuating loads caused by the seaway. This is especially the case for high-speed craft (HSC), as the slamming loads and associated response are known to significantly impact the stress magnitudes experienced by the structure. Therefore, slamming may have a considerable influence on the fatigue life of HSC when compared to accounting for the global wave induced stresses alone. This paper presents an investigation into various methods for identifying slams for structural response analysis. Measurements of hull girder stresses of an aluminium high-speed patrol boat are utilised to explore the characteristics of slam events. The approach to analyse full-scale time records, decomposition of the wave-induced and impact components of stress, and definition and detection of slam events are discussed. With respect to fatigue life, identification of slam events enables the evaluation of the influence of slamming and the associated whipping response in a range of speeds, headings and sea states. Such knowledge supports informed decision-making in regards to the sustainability and maintainability of the vessel.
Item Details
Item Type: | Refereed Article |
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Keywords: | fatigue, high-speed craft, hull monitoring, slamming |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Defence |
Objective Group: | Defence |
Objective Field: | Maritime |
UTAS Author: | Magoga, T (Ms Teresa Magoga) |
UTAS Author: | Ojeda, R (Dr Roberto Ojeda Rabanal) |
ID Code: | 117157 |
Year Published: | 2017 |
Web of Science® Times Cited: | 10 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2017-06-01 |
Last Modified: | 2018-04-19 |
Downloads: | 0 |
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