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A novel approach to safety analysis of floating structures experiencing storm

Citation

Abaei, MM and Arzaghi, E and Abbassi, R and Garaniya, V and Chai, S, A novel approach to safety analysis of floating structures experiencing storm, Ocean Engineering: An International Journal of Research and Development, 150 pp. 397-403. ISSN 0029-8018 (2018) [Refereed Article]

Copyright Statement

2017 Elsevier Ltd.

DOI: doi:10.1016/j.oceaneng.2017.12.011

Abstract

Marine floating structures may experience harsh environmental conditions during their operational life span. In order to maintain a safe operation, it is necessary to evaluate the performance of the structure in extreme conditions such as storm. Previously, various approaches were introduced to analyse the response of an offshore structure in different sea states. However, the proposed methods are computationally time consuming requiring a large number of simulations and it is not the most realistic approach to analyse the dynamic behavior of a structure by separately replicating each level of storm. In this study, a novel numerical model of storm is developed based on Endurance Wave Analysis (EWA) concept. The developed model will reduce the computational cost to only one storm record of 1100 s taking into account the randomness of sea environment. The application of this method is demonstrated by assessing a Floating Storage Unit (FSU) responses encountering a storm in the North Sea. The results show that the response of structure is likely to exceed the survival condition while encountering storm level 10 corresponding to a wave height of 12.56 m. The proposed method is beneficial for future risk and reliability analyses that require a great deal of data.

Item Details

Item Type:Refereed Article
Keywords:harsh environment, floating structures, reliability, wave analysis
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Marine Engineering
Objective Division:Transport
Objective Group:Water Transport
Objective Field:Water Safety
UTAS Author:Abaei, MM (Mr Mohammad Abaei)
UTAS Author:Arzaghi, E (Mr Ehsan Arzaghi)
UTAS Author:Abbassi, R (Dr Rouzbeh Abbassi)
UTAS Author:Garaniya, V (Dr Vikram Garaniya)
UTAS Author:Chai, S (Professor Shuhong Chai)
ID Code:123141
Year Published:2018 (online first 2017)
Web of Science® Times Cited:1
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-12-18
Last Modified:2018-04-19
Downloads:0

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