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Experimental investigation on dynamic responses of spar platforms subjected to multi-directional waves

Kurian, V.J. and Ng , C.Y. and Liew, M. S. (2012) Experimental investigation on dynamic responses of spar platforms subjected to multi-directional waves. In: 2012 IEEE Business, Engineering and Industrial Applications Colloquium (IEEE BEIAC 2012), 7-8 April 2012, Kuala Lumpur, MALAYSIA.

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Abstract

In the real sea, only multidirectional waves or short crested waves are found. Nowadays, designers tend to use the directional wave statistics for the design of offshore structures. The main reason is to obtain the optimum design of the structures for cost and time effectiveness. In this paper, an experimental investigation on dynamic responses of spar platform subjected to multi-directional waves is presented. The model tests were performed in the wave tank of Offshore Engineering Laboratory of Universiti Teknologi PETRONAS. In the tests, a standard cosine spreading law was added to the Pierson-Moskowitz (P-M) and JONSWAP spectra to generate the multi-directional waves. The response data were collected and processed to obtain the dynamic responses of the spar model in terms of RAOs. The responses in 3 degree-of-freedom were presented and it was found that short crested waves, namely the multi-directional waves induce smaller responses compared to the long crested waves.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TA Engineering (General). Civil engineering (General)
Departments / MOR / COE:Research Institutes > Deep Water Technology
ID Code:7984
Deposited By: Prof Dr Kurian V John
Deposited On:12 Sep 2012 01:13
Last Modified:19 Jan 2017 08:21

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