Effect of Current on the Dynamic Motion of Truss Spar Platforms
Abstract—Truss spar platform is the second spar 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 and current are presented. A...
| Main Authors: | Kurian, V.J., Montasir,, O.A.A, Liew, M. S. |
|---|---|
| Format: | Conference or Workshop Item |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.8002 / |
| Published: |
2012
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http://eprints.utp.edu.my/8002/1/1569543941-new.pdf http://eprints.utp.edu.my/8002/ |
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utp-eprints.80022017-03-20T01:59:30Z Effect of Current on the Dynamic Motion of Truss Spar Platforms Kurian, V.J. Montasir,, O.A.A Liew, M. S. TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) Abstract—Truss spar platform is the second spar 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 and current 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 Newmark Beta method was employed. The simulated results show very little effect of the current on the response amplitude. However, it caused significant increase in the surge mean offset. Keywords- truss spar; dynamic analysis; time domain; hydrodynamic responses; rigid body 2012-06 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/8002/1/1569543941-new.pdf Kurian, V.J. and Montasir,, O.A.A and Liew, M. S. (2012) Effect of Current on the Dynamic Motion of Truss Spar Platforms. In: ESTCON - ICCOEE 2012 - International Conference in Civil, Offshore and Environmental Engineering, 12-14 June 2012, Kuala Lumpur. http://eprints.utp.edu.my/8002/ |
| institution |
Universiti Teknologi Petronas |
| collection |
UTP Institutional Repository |
| topic |
TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) |
| spellingShingle |
TC Hydraulic engineering. Ocean engineering TA Engineering (General). Civil engineering (General) Kurian, V.J. Montasir,, O.A.A Liew, M. S. Effect of Current on the Dynamic Motion of Truss Spar Platforms |
| description |
Abstract—Truss spar platform is the second spar
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 and current 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 Newmark Beta method was employed. The
simulated results show very little effect of the current on the
response amplitude. However, it caused significant increase in
the surge mean offset.
Keywords- truss spar; dynamic analysis; time domain;
hydrodynamic responses; rigid body |
| format |
Conference or Workshop Item |
| author |
Kurian, V.J. Montasir,, O.A.A Liew, M. S. |
| author_sort |
Kurian, V.J. |
| title |
Effect of Current on the Dynamic Motion of Truss
Spar Platforms |
| title_short |
Effect of Current on the Dynamic Motion of Truss
Spar Platforms |
| title_full |
Effect of Current on the Dynamic Motion of Truss
Spar Platforms |
| title_fullStr |
Effect of Current on the Dynamic Motion of Truss
Spar Platforms |
| title_full_unstemmed |
Effect of Current on the Dynamic Motion of Truss
Spar Platforms |
| title_sort |
effect of current on the dynamic motion of truss
spar platforms |
| publishDate |
2012 |
| url |
http://eprints.utp.edu.my/8002/1/1569543941-new.pdf http://eprints.utp.edu.my/8002/ |
| _version_ |
1741196110958952448 |
| score |
11.62408 |