EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES
Drilling is carried out in deeper to deeper waters around the globe to meet growing demands for oil and natural gas, and a number of multi body structures are deployed in various oil fields in the world. Investigation of hydrodynamic interaction of offshore structures is therefore worthwhile. Hydrod...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering and Naval Architecture
2016-06-01
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| Series: | Brodogradnja |
| Subjects: | |
| Online Access: | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=235673&lang=en |
| _version_ | 1818540392133427200 |
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| author | Hassan Abyn M. Rafiqul Islam Adi Maimun Amin Mahmoudi Jaswar Kato |
| author_facet | Hassan Abyn M. Rafiqul Islam Adi Maimun Amin Mahmoudi Jaswar Kato |
| author_sort | Hassan Abyn |
| collection | DOAJ |
| description | Drilling is carried out in deeper to deeper waters around the globe to meet growing demands for oil and natural gas, and a number of multi body structures are deployed in various oil fields in the world. Investigation of hydrodynamic interaction of offshore structures is therefore worthwhile. Hydrodynamic interaction between floating offshore structures affects motion and relative motion especially during loading and offloading operations. Hydrodynamic interactions may lead to large motions of floating bodies that would cause damage to moorings and offloading systems and may collide with each other. This research work discusses experimental results of hydrodynamic interaction in surge, heave and pitch motion, relative motion and relative distance between a Tension Leg Platform (TLP) and semi-submersible (Tender Assisted Drilling) in regular waves. The experiment is conducted without tendon because of the depth limitation of the Towing Tank. However, in order to consider the contribution of mooring in linear direction, appropriate stiffness of horizontal springs have been used. The experiment was conducted for a full scale wave height of 3.77 m to 12.49 m for a separation distance of 21.7 m.
From the analyses of the experimental and numerical results, it can be concluded that nonlinearity of the wave has an important effect on increasing the motion especially in the natural frequency region. Finally, a number of recommendations have been made for further study. |
| first_indexed | 2024-12-11T21:54:45Z |
| format | Article |
| id | doaj.art-719182d093bb4cb79ae1baa72f4dc70d |
| institution | Directory Open Access Journal |
| issn | 0007-215X 1845-5859 |
| language | English |
| last_indexed | 2024-12-11T21:54:45Z |
| publishDate | 2016-06-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj.art-719182d093bb4cb79ae1baa72f4dc70d2022-12-22T00:49:21ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592016-06-0167211310.21278/brod67201EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVESHassan Abyn0M. Rafiqul Islam1Adi Maimun2Amin Mahmoudi3Jaswar Kato4Engineering Faculty, Persian Gulf University, 75169, Bushehr, Iran Faculty of Maritime Studies, King Abdulaziz University, Jeddah, Kingdom of Saudi ArabiaUTM, 81310, Johor Bahru, Malaysia Engineering Faculty, Persian Gulf University, 75169, Bushehr, Iran UTM, 81310, Johor Bahru, MalaysiaDrilling is carried out in deeper to deeper waters around the globe to meet growing demands for oil and natural gas, and a number of multi body structures are deployed in various oil fields in the world. Investigation of hydrodynamic interaction of offshore structures is therefore worthwhile. Hydrodynamic interaction between floating offshore structures affects motion and relative motion especially during loading and offloading operations. Hydrodynamic interactions may lead to large motions of floating bodies that would cause damage to moorings and offloading systems and may collide with each other. This research work discusses experimental results of hydrodynamic interaction in surge, heave and pitch motion, relative motion and relative distance between a Tension Leg Platform (TLP) and semi-submersible (Tender Assisted Drilling) in regular waves. The experiment is conducted without tendon because of the depth limitation of the Towing Tank. However, in order to consider the contribution of mooring in linear direction, appropriate stiffness of horizontal springs have been used. The experiment was conducted for a full scale wave height of 3.77 m to 12.49 m for a separation distance of 21.7 m. From the analyses of the experimental and numerical results, it can be concluded that nonlinearity of the wave has an important effect on increasing the motion especially in the natural frequency region. Finally, a number of recommendations have been made for further study.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=235673&lang=enTension leg platformTender assisted drillingFloating semi-submersibleHydrodynamic interaction |
| spellingShingle | Hassan Abyn M. Rafiqul Islam Adi Maimun Amin Mahmoudi Jaswar Kato EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES Brodogradnja Tension leg platform Tender assisted drilling Floating semi-submersible Hydrodynamic interaction |
| title | EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES |
| title_full | EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES |
| title_fullStr | EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES |
| title_full_unstemmed | EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES |
| title_short | EXPERIMENTAL STUDY OF MOTIONS OF TWO FLOATING OFFSHORE STRUCTURES IN WAVES |
| title_sort | experimental study of motions of two floating offshore structures in waves |
| topic | Tension leg platform Tender assisted drilling Floating semi-submersible Hydrodynamic interaction |
| url | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=235673&lang=en |
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