Logo

Dynamic Responses of Classic Spar Platform: Short Crested Waves vs. Long Crested Waves

Ng , C.Y. and Kurian, V.J. and Liew, M. S. (2014) Dynamic Responses of Classic Spar Platform: Short Crested Waves vs. Long Crested Waves. [Citation Index Journal]

[img]
Preview
PDF
414Kb

Abstract

The long-crested wave properties have been widely implemented in the design of offshore structures. However, long-crested waves are seldom found in the real sea condition. Many research papers have also stated that wave forces obtained by the waves would be overestimated. Indeed, the real sea conditions are better represented by the short-crested waves. Hence, in order to obtain an optimum design for the offshore structures with cost and time effective, consideration of the short-crested nature of waves is necessary. In this paper, a study comparing the responses of the classic spar due to short-crested waves and long-crested waves obtained experimentally has been performed. The model tests have been carried out in the wave tank of Offshore Laboratory for Universiti Teknologi PETRONAS. In the model tests, short-crested waves and long-crested waves were generated. Responses of the classic spar model were recorded by the Optical Tracking System (OptiTrack). The responses of the classic spar due to short-crested waves and long-crested waves were compared among. From the comparisons, the responses for short-crested waves in all the three degree of freedom (DOF) were found to be about 35% less than the responses for long-crested waves. Thus, it could be concluded that optimized and economical designs can be arrived at by considering the short-crestedness of the waves for classic spar structures.

Item Type:Citation Index Journal
Impact Factor:0.2
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TC Hydraulic engineering. Ocean engineering
Academic Subject One:Civil Engineering
Academic Subject Two:Ocean Engineering
Departments / MOR / COE:Mission Oriented Research > Deep Water Technology
ID Code:11309
Deposited By: Prof Dr Kurian V John
Deposited On:13 Oct 2014 02:52
Last Modified:13 Oct 2014 02:52

Repository Staff Only: item control page

Document Downloads

More statistics for this item...