Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

Experimental Study on Dynamic Responses of Truss Spar Platform Subjected To Long-Crested Waves and Short-Crested Waves with Current

MAD NOR, NUR AIFA FARIHAH (2015) Experimental Study on Dynamic Responses of Truss Spar Platform Subjected To Long-Crested Waves and Short-Crested Waves with Current. IRC, Universiti Teknologi PETRONAS. (Unpublished)

[img]
Preview
PDF
Download (2309Kb) | Preview

Abstract

The environmental conditions e.g. wave and current are the important aspects that shall be considered in the design of offshore structures. Research have been highlighted on the long-crested waves or unidirectional wave. However, the occurrence of such waves are seldom found in the real sea condition [1]. Studies also stated that wave force by long-crested waves would be overestimated or overdesigned [2]. On the other hand, short-crested wave would be better representing the real sea condition. By considering short-crested waves, an optimum design of the offshore structure with cost and time effectiveness could be achieved [2]. Yet, there no experimental studies has been reported comparing the dynamic responses of truss spar platform subjected to long-crested and short-crested wave with current in six degree of freedom. Thus, an experimental study by wave tank test has been performed in order to quantify the effectiveness of the dynamic responses of the truss spar platform subjected to short-crested waves by comparing to the long-crested waves with current. A model of truss spar platform which is fabricated by steel plate with 1:100 ratio scale from the prototype was used in the study of dynamic responses. In wave tank test, long-crested waves with current and short-crested waves with current was generated by wave and current generator. Spreading function, cosine squared (cos2) was implemented and incorporated with JONSWAP spectrum to produce short-crested wave. Current as well has been considered in this study. Wave probe was adopted to record the wave profile while the Qualisys Track Manager (QTM) was used to record the dynamic motion responses in six degree of freedom. The dynamic motion responses of truss spar platform model were compared among the long and short-crested waves with current. As results, the responses of truss spar considering short-crested waves with current were found to smaller compare to long-crested wave with current. This indicated that offshore structure design considering short-crested waves with current could the optimized and provide an economical design.

Item Type: Final Year Project
Academic Subject : Academic Department - Civil Engineering - Water and environment - Environmental - Wastewater treatment
Subject: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Engineering > Civil
Depositing User: Ahmad Suhairi Mohamed Lazim
Date Deposited: 18 Nov 2015 08:45
Last Modified: 25 Jan 2017 09:35
URI: http://utpedia.utp.edu.my/id/eprint/16013

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...