A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water

This research focused on the response of the jacket structure to environmental loading. The jacket was modelled as a space frame using ANSYS finite element package. Meanwhile, the estimation of extreme value of environmental parameters based on data on Malaysia waters was carried out using MINITAB....

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Main Author:	Tan, Chun Chai
Format:	Thesis
Language:	English
Published:	2005
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/3006/1/TanChunChaiMFKM2005.pdf
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id	my-utm-ep.3006
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spelling	my-utm-ep.30062018-06-25T00:46:00Z A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water 2005-12 Tan, Chun Chai TJ Mechanical engineering and machinery This research focused on the response of the jacket structure to environmental loading. The jacket was modelled as a space frame using ANSYS finite element package. Meanwhile, the estimation of extreme value of environmental parameters based on data on Malaysia waters was carried out using MINITAB. Response of the structure under environmental loading was performed using static analysis. Interaction ratios of the members are computed based on API RP2Aâ€“WSD (1993) using MATLAB. The sensitivity of the jacket structure to variation in design parameters was investigated. From global stress analysis, one of the structureâ€™s member on a complex multiplanar leg joint, appeared to have a high utilisation of stress when assessed using API RP2Aâ€“WSD (1993). Therefore, a nonlinear finite element analysis of the multiplanar joint has been carried out to determine both the absolute load capacity of the joint, the effect of the outâ€“ofâ€“plane loads and braces and relate these back to the strength of the critical brace acting as a Y joint. This study presents the analytical methods and results together with a calibration of the analysis against test data for Y joints. A systematic study of stresses in tubular Y joints has also been conducted using finite element analysis which covers axial loading, inâ€“plane bending and outâ€“ofâ€“plane bending. For each mode of loading, and for both chord and brace sides of the intersection, stress concentration factors and its distributions are calculated for selected locations. The validity of this approach is demonstrated by comparing the finite element results with the predictions of other previously published parametric equations 2005-12 Thesis http://eprints.utm.my/id/eprint/3006/ http://eprints.utm.my/id/eprint/3006/1/TanChunChaiMFKM2005.pdf application/pdf en public 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 Tan, Chun Chai A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
description	This research focused on the response of the jacket structure to environmental loading. The jacket was modelled as a space frame using ANSYS finite element package. Meanwhile, the estimation of extreme value of environmental parameters based on data on Malaysia waters was carried out using MINITAB. Response of the structure under environmental loading was performed using static analysis. Interaction ratios of the members are computed based on API RP2Aâ€“WSD (1993) using MATLAB. The sensitivity of the jacket structure to variation in design parameters was investigated. From global stress analysis, one of the structureâ€™s member on a complex multiplanar leg joint, appeared to have a high utilisation of stress when assessed using API RP2Aâ€“WSD (1993). Therefore, a nonlinear finite element analysis of the multiplanar joint has been carried out to determine both the absolute load capacity of the joint, the effect of the outâ€“ofâ€“plane loads and braces and relate these back to the strength of the critical brace acting as a Y joint. This study presents the analytical methods and results together with a calibration of the analysis against test data for Y joints. A systematic study of stresses in tubular Y joints has also been conducted using finite element analysis which covers axial loading, inâ€“plane bending and outâ€“ofâ€“plane bending. For each mode of loading, and for both chord and brace sides of the intersection, stress concentration factors and its distributions are calculated for selected locations. The validity of this approach is demonstrated by comparing the finite element results with the predictions of other previously published parametric equations
format	Thesis
qualification_level	Master's degree
author	Tan, Chun Chai
author_facet	Tan, Chun Chai
author_sort	Tan, Chun Chai
title	A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
title_short	A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
title_full	A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
title_fullStr	A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
title_full_unstemmed	A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water
title_sort	numerical analysis of fixed offshore structure subjected to environmental loading in malaysian water
granting_institution	Universiti Teknologi Malaysia, Faculty of Mechanical Engineering
granting_department	Faculty of Mechanical Engineering
publishDate	2005
url	http://eprints.utm.my/id/eprint/3006/1/TanChunChaiMFKM2005.pdf
_version_	1747814435588669440

A numerical analysis of fixed offshore structure subjected to environmental loading in Malaysian water

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