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Experimental drop test investigation into wetdeck slamming loads on a generic catamaran hullform

Swidan, A; Thomas, G; Ranmuthugala, D; Amin, W; Penesis, I; Allen, T; Battley, M; (2016) Experimental drop test investigation into wetdeck slamming loads on a generic catamaran hullform. Ocean Engineering , 117 pp. 143-153. 10.1016/j.oceaneng.2016.03.059. Green open access

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Abstract

A series of drop-test experiments was performed to investigate the hydrodynamic loads experienced by a generic wave-piercer catamaran hullform during water impacts. The experiments, which focus on the characterisation of the unsteady slam loads on an arched wetdeck, were conducted using a Servo-hydraulic Slam Testing System (SSTS) that allows the model to enter the water at a range of constant speeds up to 10 m/s. The systematic and random uncertainties associated with the drop test results are quantified in detail. The relationships between water-entry velocity and both slam force and pressure distributions are presented and discussed with a strong relationship between the slam force peak magnitudes and impact velocity being observed. In addition the three dimensionality of the water flow in these slam impact events is characterised.

Type: Article
Title: Experimental drop test investigation into wetdeck slamming loads on a generic catamaran hullform
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.oceaneng.2016.03.059
Publisher version: http://dx.doi.org/10.1016/j.oceaneng.2016.03.059
Language: English
Additional information: Copyright © 2016 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Keywords: Catamaran; Slamming forces; Pressure distribution; Water impact
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1489493
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