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Dynamic Responses of Float-over Barge Subjected to Random Waves

Kurian, V.J. and Baharuddin, Nurul Husna and Hashim, Ahmad Mustafa and Magee, A.R. (2012) Dynamic Responses of Float-over Barge Subjected to Random Waves. In: International Society of Offshore and Polar Engineers Conference 2012 (ISOPE 2012), 17-22 June 2012, Rhodes, Greece.

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Abstract

float-over method has been widely utilized in offshore construction industry. This technique demonstrates significant advantages over the conventional lifting installation especially in remote areas where heavy lifting crane barges are unavailable and topside weight exceeds the lifting capacity of the floating crane. In order to ensure smooth floatover operations, the responses of the float-over barge due to waves are crucial and must be determined. In this paper, the experimental results on the scale model of float-over barge are presented, analyzed and compared with those from theoretical analysis using developed computer programs and simplified approach using frequency domain dynamic analysis. The model tests were conducted on a model following Froude scaling law with geometric scale of 1:50. Random wave sea states were specified for the test and the results are presented in terms of Response Amplitude Operators (RAOs). The model tests were conducted in a wave basin with simulated ocean environment under random waves and the dynamic responses in terms of motions of the barge were monitored during the tests. The test results were compared with theoretical values obtained from analysis and conclusions arrived at. Overall results show satisfactory agreement between model tests and theoretical analysis. KEY WORDS: Float-over barge; Response Amplitude Operators; Model Tests; Theoretical Analysis

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:7990
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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