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Effect of Adding Mooring Lines to the Truss Spar Platform

Montasir, O. A. A and Kurian , V.J. (2010) Effect of Adding Mooring Lines to the Truss Spar Platform. In: Asia Pacific Offshore Conference 2010 (APOC 2010), 13-14 December 2010, Kuala Lumpur.

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Abstract

A contribution of adding one more set of mooring lines to an original truss spar was examined analytically. The equation of motion was solved in time domain by using Newmark Beta integration scheme. The wave forces were calculated using modified Morison equation. The mooring lines were modeled as nonlinear springs and their restoring forces were obtained by conducting quasi static analysis. A MATLAB program was used to conduct a dynamic analysis for two cases; first for the original structure with nine mooring lines and then for the same structure with additional six mooring lines. The numerical results showed that there was no significant changes in the dynamic responses of the spar. However, the additional mooring lines play a very important role when we consider the damages to the mooring lines.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Truss spar platforms, Time domain analysis, Model tests, modified Morison equations, quasi static analysis
Subjects:V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Academic Subject One:Mission Oriented Research - Deepwater Technology - Offshore structure - Law and legislation
Departments / MOR / COE:Departments > Civil Engineering
ID Code:10581
Deposited By: Dr Montasir Osman
Deposited On:16 Dec 2013 23:48
Last Modified:16 Dec 2013 23:48

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