Universiti Teknologi Malaysia Institutional Repository

Extreme response prediction for fixed offshore structures by Monte Carlo time simulation technique

Abu Husain, M. K. and Mohd. Zaki, N. I. and Johari, M. B. and Najafian, G. (2016) Extreme response prediction for fixed offshore structures by Monte Carlo time simulation technique. In: ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2016, 19-24 June 2016, Busan, South Korea.

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Abstract

For an offshore structure, wind, wave, current, tide, ice and gravitational forces are all important sources of loading which exhibit a high degree of statistical uncertainty. The capability to predict the probability distribution of the response extreme values during the service life of the structure is essential for safe and economical design of these structures. Many different techniques have been introduced for evaluation of statistical properties of response. In each case, sea-states are characterised by an appropriate water surface elevation spectrum, covering a wide range of frequencies. In reality, the most versatile and reliable technique for predicting the statistical properties of the response of an offshore structure to random wave loading is the time domain simulation technique. To this end, conventional time simulation (CTS) procedure or commonly called Monte Carlo time simulation method is the best known technique for predicting the short-term and long-term statistical properties of the response of an offshore structure to random wave loading due to its capability of accounting for various nonlinearities. However, this technique requires very long simulations in order to reduce the sampling variability to acceptable levels. In this paper, the effect of sampling variability of a Monte Carlo technique is investigated.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Fixed offshore platform, Monte Carlo simulation, Probabilistic response modelling
Subjects:T Technology > T Technology (General)
Divisions:Razak School of Engineering and Advanced Technology
ID Code:73646
Deposited By: Mohd Zulaihi Zainudin
Deposited On:28 Nov 2017 06:50
Last Modified:28 Nov 2017 06:50

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