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Estimation of Wave to Response Transfer Function for Jacket Platforms in Malaysian Waters

Kim Jie, Koh (2015) Estimation of Wave to Response Transfer Function for Jacket Platforms in Malaysian Waters. IRC, Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Waves are recognized as the most intriguing environmental challenge for offshore structures. However, there is still deficiency in understanding the relationship between waves and responses of a jacket platform. As motivation, the main objective is to explore the relationship using wave to response transfer function for 3 jacket platforms in Malaysian waters. In addition, relevant responses due to waves are compared and contrasted among the platform models. As methodology, a full spectrum of wave-driven analyses encircling in-place static analysis with non-linear pile-soil interaction, pushover analysis, deterministic wave analysis and random wave analysis; is simulated via SACS 5.3 suites of program. As outcome, four sets of transfer function are produced. The first set of transfer function reveals that static responses are sensitive towards wave height but not period. Plus, wave load seeks to overturn the structures in the propagating direction; hence a withdrawal tendency for piles facing the incoming waves. The second set of transfer function employs equivalent wave height as a sensible tool alongside reserve strength ratio (RSR) in evaluating the ultimate capacity of a jacket platform. Moreover, the third set of transfer function reveals the fundamental principle of dynamical excitation and conservativeness of the design wave method. The fourth set of transfer function analyzes responses and dynamical excitation due to random waves through response amplitude operator (RAO) and dynamic amplification factor (DAF) in the frequency domain.

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: 30 Sep 2015 11:18
Last Modified: 25 Jan 2017 09:36
URI: http://utpedia.utp.edu.my/id/eprint/15642

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