The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms
The fixed jacket is still the most common offshore structure used for drilling and oil production. The structure consists of tubular members interconnected to form a three-dimensional space frame, which can be categorized into a column structure. The structure usually has four to eight legs that...
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2016-10-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | http://ijtech.eng.ui.ac.id/article/view/363 |
| _version_ | 1797967286925000704 |
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| author | Muhammad Zubair Muis Alie |
| author_facet | Muhammad Zubair Muis Alie |
| author_sort | Muhammad Zubair Muis Alie |
| collection | DOAJ |
| description | The fixed jacket
is still the most common offshore structure used for drilling and oil
production. The structure consists of tubular members interconnected to form a
three-dimensional space frame, which can be categorized into a column
structure. The structure usually has four to eight legs that are battered to
achieve stability against axial compressive loads and toppling due to wave
loads. The configuration of a typical member on the jacket structure has
significant influence on buckling and fatigue strength. Horizontal and diagonal
braces play an important role in resisting the axial compression and wave load
on the global structure. This
paper discusses the effect of symmetrical and asymmetrical configuration shapes
in buckling and fatigue strength analysis on two types of fixed jacket offshore
platforms. The axial compressive and lateral (wave) loads were considered and
applied to both structures. The material and dimensions of the two structures
were assumed to be constant and homogenous. Crack extension and corrosion were
not considered. To assess the buckling and fatigue strength of these
structures, due to the symmetrical and asymmetrical configuration shape, the
finite element method (FEM) was adopted. Buckling analysis was performed on
these structures by taking two-dimensional planes into consideration to obtain
the critical buckling load for the local plane; fatigue life analysis was then
calculated to produce the fatigue life of those structures. The result obtained
by FEM was compared with the analytical solution for the critical buckling
load. The stress-strain curve was also applied to show the difference between
symmetrical and asymmetrical shapes. For fatigue life analysis, the procedure
of the response amplitude operator was applied. |
| first_indexed | 2024-04-11T02:28:51Z |
| format | Article |
| id | doaj.art-28cd1fbcca3148ad85544aa710e80c8d |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-04-11T02:28:51Z |
| publishDate | 2016-10-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-28cd1fbcca3148ad85544aa710e80c8d2023-01-02T21:49:00ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002016-10-01761107111610.14716/ijtech.v7i6.363363The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore PlatformsMuhammad Zubair Muis Alie0Department of Naval Architect and Ocean Engineering, Faculty of Engineering, Hasanuddin University, Gowa 92172, IndonesiaThe fixed jacket is still the most common offshore structure used for drilling and oil production. The structure consists of tubular members interconnected to form a three-dimensional space frame, which can be categorized into a column structure. The structure usually has four to eight legs that are battered to achieve stability against axial compressive loads and toppling due to wave loads. The configuration of a typical member on the jacket structure has significant influence on buckling and fatigue strength. Horizontal and diagonal braces play an important role in resisting the axial compression and wave load on the global structure. This paper discusses the effect of symmetrical and asymmetrical configuration shapes in buckling and fatigue strength analysis on two types of fixed jacket offshore platforms. The axial compressive and lateral (wave) loads were considered and applied to both structures. The material and dimensions of the two structures were assumed to be constant and homogenous. Crack extension and corrosion were not considered. To assess the buckling and fatigue strength of these structures, due to the symmetrical and asymmetrical configuration shape, the finite element method (FEM) was adopted. Buckling analysis was performed on these structures by taking two-dimensional planes into consideration to obtain the critical buckling load for the local plane; fatigue life analysis was then calculated to produce the fatigue life of those structures. The result obtained by FEM was compared with the analytical solution for the critical buckling load. The stress-strain curve was also applied to show the difference between symmetrical and asymmetrical shapes. For fatigue life analysis, the procedure of the response amplitude operator was applied.http://ijtech.eng.ui.ac.id/article/view/363Buckling analysisFatigue analysisFinite element methodFixed offshore platformSymmetrical and asymmetrical shape |
| spellingShingle | Muhammad Zubair Muis Alie The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms International Journal of Technology Buckling analysis Fatigue analysis Finite element method Fixed offshore platform Symmetrical and asymmetrical shape |
| title | The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms |
| title_full | The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms |
| title_fullStr | The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms |
| title_full_unstemmed | The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms |
| title_short | The Effect of Symmetrical and Asymmetrical Configuration Shapes on Buckling and Fatigue Strength Analysis of Fixed Offshore Platforms |
| title_sort | effect of symmetrical and asymmetrical configuration shapes on buckling and fatigue strength analysis of fixed offshore platforms |
| topic | Buckling analysis Fatigue analysis Finite element method Fixed offshore platform Symmetrical and asymmetrical shape |
| url | http://ijtech.eng.ui.ac.id/article/view/363 |
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