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The slamming behaviour of a large high-speed catamaran has been investigated through the analysis of full-scale trials data. The US Navy conducted the trials in the North Sea and North Atlantic region on a 98 m wave piercer catamaran, HSV-2 Swift, designed by Revolution Design Pty Ltd and built by Incat Tasmania. For varying wave headings, vessel speeds and sea states the data records were interrogated to identify slam events. An automatic slam identification algorithm was developed, considering the measured rate of change of stress in the ship’s structure coupled with the vessel’s pitch motion. This has allowed the slam occurrence rates to be found for a range of conditions and the influence of vessel speed, wave environment and heading to be determined. The slam events have been further characterised by assessing the relative vertical velocity at impact between the vessel and the wave. Since the ship was equipped with a ride control system, its influence on the slam occurrence rates has also been assessed.

Item Type:	Refereed Article
Keywords:	Slam, Full scale, High-speed catamaran
Research Division:	Engineering
Research Group:	Maritime engineering
Research Field:	Naval architecture
Objective Division:	Expanding Knowledge
Objective Group:	Expanding knowledge
Objective Field:	Expanding knowledge in engineering
UTAS Author:	Thomas, GA (Professor Giles Thomas)
UTAS Author:	Davis, MR (Professor Michael Davis)
ID Code:	88624
Year Published:	2014 (online first 2013)
Web of Science® Times Cited:	29
Deposited By:	NC Maritime Engineering and Hydrodynamics
Deposited On:	2014-02-11
Last Modified:	2017-09-21
Downloads:	209 View Download Statistics