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Dynamic interaction of breaking waves and inverted sailing yachts: Explaining the efficacy of mast height retention to vertical centre of gravity
Citation
Binns, JR and Brandner, PA, Dynamic interaction of breaking waves and inverted sailing yachts: Explaining the efficacy of mast height retention to vertical centre of gravity, Ocean Engineering, 35, (17-18) pp. 1759-1768. ISSN 0029-8018 (2008) [Refereed Article]
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Copyright Statement
The definitive version is available at http://www.sciencedirect.com
Official URL: http://www.sciencedirect.com
DOI: doi:10.1016/j.oceaneng.2008.08.013
Abstract
The ability of a sailing yacht to re-right due to the effect of a breaking wave is investigated experimentally. Free and constrained physical models with varying mast height and centre of gravity were tested. To investigate the influence of retained mast height on sway force and roll moment, models were constrained by attachment to a force balance for sway motion tests in calm water and stationary tests in regular and breaking waves. Free model testing, with varying mast height and centre of gravity position, were carried out in breaking waves. For these tests, model motions in six degrees of freedom were measured using photogrammetry. The constrained tests showed that while the mast height had little effect on forces when stationary in waves it had a large effect when in sway motion. As models experience large sway motions when subject to a breaking wave the mast remnant plays a critical role in re-righting dynamics. This work demonstrates that re-righting probability is more dependent on mast height retention and wave characteristics than vertical centre of gravity. This conclusion has direct implications on re-righting safety assessment as the dominant design feature in most safety standards is the vertical centre of gravity.
Item Details
Item Type: | Refereed Article |
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Keywords: | Sailing yacht safety; Experimental hydrodynamics; Capsize; Re-righting |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Manufacturing |
Objective Group: | Computer, electronic and communication equipment |
Objective Field: | Integrated systems |
UTAS Author: | Binns, JR (Professor Jonathan Binns) |
UTAS Author: | Brandner, PA (Professor Paul Brandner) |
ID Code: | 53963 |
Year Published: | 2008 |
Web of Science® Times Cited: | 1 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2009-02-03 |
Last Modified: | 2012-04-20 |
Downloads: | 3 View Download Statistics |
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