A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads
The Persian Gulf is one of the most common regions where offshore platforms exist due to the presence of oil and natural gas. Wind, current, and wave loading affect the dynamic response of offshore structures, increasing performance uncertainty and catastrophic failure probability. Thus, this study...
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| Format: | Article |
| Language: | English English |
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Penerbit UTHM
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/40512/ http://umpir.ump.edu.my/id/eprint/40512/1/A%20numerical%20study%20of%20brace-viscous%20damper%20system.pdf http://umpir.ump.edu.my/id/eprint/40512/2/A%20numerical%20study%20of%20brace-viscous%20damper%20system%20of%20fixed%20offshore%20jacket%20platforms%20under%20extreme%20environmental%20loads_ABS.pdf |
| _version_ | 1848826069854978048 |
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| author | Alwashali, Salah Aldeen Muthanna Abdullah Chin, Siew Choo |
| author_facet | Alwashali, Salah Aldeen Muthanna Abdullah Chin, Siew Choo |
| author_sort | Alwashali, Salah Aldeen Muthanna Abdullah |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | The Persian Gulf is one of the most common regions where offshore platforms exist due to the presence of oil and natural gas. Wind, current, and wave loading affect the dynamic response of offshore structures, increasing performance uncertainty and catastrophic failure probability. Thus, this study investigates energy dissipation systems, particularly viscous dampers, to solve design and rehabilitation problems of fixed offshore structures. Viscos dampers improve vibrational behaviour and reduce structural response to optimise platform performance. Thus, eliminating costly structural repairs and strengthening components under extreme environmental loads extends structure lifetime. Thus, different viscous damper system configurations are tested to reduce dynamic response under extreme environmental loads in the Persian Gulf. Diagonal and inverted V-shaped brace viscous dampers with nine different arrangements are compared to find the best configuration. The study found that the brace viscous dampers with only three applied dampers at the top three levels are most efficient at mitigating dynamic response. It reduced displacements from level 1 to level 5 by 52% to 64% and connection stresses by 38% to 54%. Finally, viscous dampers reduce structural vibration and provide uniform and constant structural dynamic response, so the oil and gas industry should use them for offshore structure design and rehabilitation. |
| first_indexed | 2025-11-15T03:38:58Z |
| format | Article |
| id | ump-40512 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:38:58Z |
| publishDate | 2023 |
| publisher | Penerbit UTHM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-405122024-04-30T06:27:02Z http://umpir.ump.edu.my/id/eprint/40512/ A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads Alwashali, Salah Aldeen Muthanna Abdullah Chin, Siew Choo T Technology (General) TA Engineering (General). Civil engineering (General) The Persian Gulf is one of the most common regions where offshore platforms exist due to the presence of oil and natural gas. Wind, current, and wave loading affect the dynamic response of offshore structures, increasing performance uncertainty and catastrophic failure probability. Thus, this study investigates energy dissipation systems, particularly viscous dampers, to solve design and rehabilitation problems of fixed offshore structures. Viscos dampers improve vibrational behaviour and reduce structural response to optimise platform performance. Thus, eliminating costly structural repairs and strengthening components under extreme environmental loads extends structure lifetime. Thus, different viscous damper system configurations are tested to reduce dynamic response under extreme environmental loads in the Persian Gulf. Diagonal and inverted V-shaped brace viscous dampers with nine different arrangements are compared to find the best configuration. The study found that the brace viscous dampers with only three applied dampers at the top three levels are most efficient at mitigating dynamic response. It reduced displacements from level 1 to level 5 by 52% to 64% and connection stresses by 38% to 54%. Finally, viscous dampers reduce structural vibration and provide uniform and constant structural dynamic response, so the oil and gas industry should use them for offshore structure design and rehabilitation. Penerbit UTHM 2023 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40512/1/A%20numerical%20study%20of%20brace-viscous%20damper%20system.pdf pdf en http://umpir.ump.edu.my/id/eprint/40512/2/A%20numerical%20study%20of%20brace-viscous%20damper%20system%20of%20fixed%20offshore%20jacket%20platforms%20under%20extreme%20environmental%20loads_ABS.pdf Alwashali, Salah Aldeen Muthanna Abdullah and Chin, Siew Choo (2023) A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads. International Journal of Integrated Engineering, 15 (2). pp. 273-282. ISSN 2229-838X. (Published) https://doi.org/10.30880/IJIE.2023.15.02.027 https://doi.org/10.30880/IJIE.2023.15.02.027 |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) Alwashali, Salah Aldeen Muthanna Abdullah Chin, Siew Choo A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title | A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title_full | A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title_fullStr | A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title_full_unstemmed | A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title_short | A numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| title_sort | numerical study of brace-viscous damper system of fixed offshore jacket platforms under extreme environmental loads |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) |
| url | http://umpir.ump.edu.my/id/eprint/40512/ http://umpir.ump.edu.my/id/eprint/40512/ http://umpir.ump.edu.my/id/eprint/40512/ http://umpir.ump.edu.my/id/eprint/40512/1/A%20numerical%20study%20of%20brace-viscous%20damper%20system.pdf http://umpir.ump.edu.my/id/eprint/40512/2/A%20numerical%20study%20of%20brace-viscous%20damper%20system%20of%20fixed%20offshore%20jacket%20platforms%20under%20extreme%20environmental%20loads_ABS.pdf |