A reliability analysis of a Malaysia jacket platform

After several decades of development, structural reliability technologies are maturing and becoming one of the essential assessment and design tools in the offshore industry. The objective of the thesis is to quantify the level of structural reliability of the jacket structure in the Malaysia waters...

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Main Author:	Chin, Doris Chong Leng
Format:	Thesis
Language:	English
Published:	2005
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/2960/1/DorisChinChongLengMFKM2005.pdf
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id	my-utm-ep.2960
record_format	uketd_dc
spelling	my-utm-ep.29602018-06-25T00:43:49Z A reliability analysis of a Malaysia jacket platform 2005-12 Chin, Doris Chong Leng TJ Mechanical engineering and machinery After several decades of development, structural reliability technologies are maturing and becoming one of the essential assessment and design tools in the offshore industry. The objective of the thesis is to quantify the level of structural reliability of the jacket structure in the Malaysia waters. Offshore structural reliability analyses are dependent upon the environmental loads assumed to act on the structure. The modeling of environmental loading is based on the wave climate of Malaysia waters. The joint probability density function for the significant wave height and spectral peak period is modelled. Response of the structure under environmental loading was investigated by using the time domain simulation. Necessary simulation time steps are established. Interaction ratios of the members were computed based on the API RP2A-WSD to determine the level of stress utilisation of the members. From here, critical members of the jacket structure were identified. The probability failure of the critical members and other structural members of interest was determined by using the Hasofer and Lind reliability index. The fluctuation in loads and variation material properties were accounted in the assessment. For many cases failure of one component will not results in the collapse of the whole structure. Thus, system reliability analysis was carried out by using the pushover method. The system was modeled as series of parallel sub-system and the reliability of the system was evaluated by using the simple bound. The failure path of the structure was identified. Deterministic system effects of the structure were analyzed to study the redundancy of the structure, which were quantified by the reserve strength and the damage tolerance ratio. From here, the level of reliability of the jacket structure is quantified, and it serves as a reference for the evaluation of reliability-based design of jacket structures in Malaysia waters 2005-12 Thesis http://eprints.utm.my/id/eprint/2960/ http://eprints.utm.my/id/eprint/2960/1/DorisChinChongLengMFKM2005.pdf application/pdf en public https://core.ac.uk/display/11779380 masters Universiti Teknologi Malaysia, Faculty of Mechanical Engineering Faculty of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Chin, Doris Chong Leng A reliability analysis of a Malaysia jacket platform
description	After several decades of development, structural reliability technologies are maturing and becoming one of the essential assessment and design tools in the offshore industry. The objective of the thesis is to quantify the level of structural reliability of the jacket structure in the Malaysia waters. Offshore structural reliability analyses are dependent upon the environmental loads assumed to act on the structure. The modeling of environmental loading is based on the wave climate of Malaysia waters. The joint probability density function for the significant wave height and spectral peak period is modelled. Response of the structure under environmental loading was investigated by using the time domain simulation. Necessary simulation time steps are established. Interaction ratios of the members were computed based on the API RP2A-WSD to determine the level of stress utilisation of the members. From here, critical members of the jacket structure were identified. The probability failure of the critical members and other structural members of interest was determined by using the Hasofer and Lind reliability index. The fluctuation in loads and variation material properties were accounted in the assessment. For many cases failure of one component will not results in the collapse of the whole structure. Thus, system reliability analysis was carried out by using the pushover method. The system was modeled as series of parallel sub-system and the reliability of the system was evaluated by using the simple bound. The failure path of the structure was identified. Deterministic system effects of the structure were analyzed to study the redundancy of the structure, which were quantified by the reserve strength and the damage tolerance ratio. From here, the level of reliability of the jacket structure is quantified, and it serves as a reference for the evaluation of reliability-based design of jacket structures in Malaysia waters
format	Thesis
qualification_level	Master's degree
author	Chin, Doris Chong Leng
author_facet	Chin, Doris Chong Leng
author_sort	Chin, Doris Chong Leng
title	A reliability analysis of a Malaysia jacket platform
title_short	A reliability analysis of a Malaysia jacket platform
title_full	A reliability analysis of a Malaysia jacket platform
title_fullStr	A reliability analysis of a Malaysia jacket platform
title_full_unstemmed	A reliability analysis of a Malaysia jacket platform
title_sort	reliability analysis of a malaysia jacket platform
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2005
url	http://eprints.utm.my/id/eprint/2960/1/DorisChinChongLengMFKM2005.pdf
_version_	1747814431678529536

A reliability analysis of a Malaysia jacket platform

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