Truss Spar Platform Motions for Combined Wave, Current and Wind Forces

Kurian, V.J. and Montasir,, O.A.A and Liew, Mohd Shahir (2012) Truss Spar Platform Motions for Combined Wave, Current and Wind Forces. In: 2012 IEEE Business, Engineering & Industrial Applications Colloquium (BEIAC 2012), 7-8 April 2012, Kuala Lumpur.

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Truss spar platform is the second development
concept that replaces the cylindrical lower section of a
classic spar with an open truss structure that includes
heave plates. In this paper, the dynamic responses of the
Marlin truss spar in regular waves, current and wind are
presented. A MATLAB code named TRSPAR was
developed for the dynamic analysis of the structure. The
structure was modeled as a rigid body with three degrees
of freedom. The hyperbolic extrapolation and the
extended Morison equation for an inclined cylinder were
used for simulating the sea state and for determining the
dynamic force vector. Time domain integration using
�ewmark Beta method was employed. The simulated
results show insignificant effect of current and wind on
the responses. However, these forces cause significant
increase in the surge mean offset.
Keywords- truss spar; dynamic analysis; time domain;
hydrodynamic responses; rigid body

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
Depositing User: Prof Dr Kurian V John
Date Deposited: 12 Sep 2012 01:13
Last Modified: 20 Mar 2017 01:59

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