Two degree of freedom vortex induced vibration tests of a riser model using spring bars
Tests have been performed on a riser model with low mass ratio subjected to uniform flows in a towing tank at subcritical Reynolds numbers. Qualisys video motion capture system was used to measure VIV and Spring bars are used instead of commonly used parallel linkage mechanism for this kind of test....
| Main Authors: | , , , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Published: |
2014
|
| Subjects: |
| _version_ | 1796861579170414592 |
|---|---|
| author | Tofa, M. Mobassher Abdul Malek, Adi Maimun Ahmed, Yasser Mohamed Jamei, Saeed Abd. Kader, Ab. Saman Abyn, Hassan |
| author_facet | Tofa, M. Mobassher Abdul Malek, Adi Maimun Ahmed, Yasser Mohamed Jamei, Saeed Abd. Kader, Ab. Saman Abyn, Hassan |
| author_sort | Tofa, M. Mobassher |
| collection | ePrints |
| description | Tests have been performed on a riser model with low mass ratio subjected to uniform flows in a towing tank at subcritical Reynolds numbers. Qualisys video motion capture system was used to measure VIV and Spring bars are used instead of commonly used parallel linkage mechanism for this kind of test. The circular cylinder of 100 mm in diameter and 1.5 m in length was towed vertically at constant speeds through the towing tank to simulate uniform current condition. Some key VIV parameters such as amplitude over diameter, lift and drag coefficients are presented against a non dimensional parameter known as reduced velocity to understand the effects of VIV on two degree of freedom system.The relative magnitude of the super-upper response branch vibration amplitudes are emphasised in this particular study. Results of this paper can be used as validation materials for CFD analysis that is very important to design riser system for oil and gas industry, also mentioned experiment procedure can be treated as a guide for future endeavour to perform similar kind of tests. |
| first_indexed | 2024-03-05T19:58:32Z |
| format | Conference or Workshop Item |
| id | utm.eprints-67119 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:58:32Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | utm.eprints-671192017-06-15T02:47:52Z http://eprints.utm.my/67119/ Two degree of freedom vortex induced vibration tests of a riser model using spring bars Tofa, M. Mobassher Abdul Malek, Adi Maimun Ahmed, Yasser Mohamed Jamei, Saeed Abd. Kader, Ab. Saman Abyn, Hassan TJ Mechanical engineering and machinery Tests have been performed on a riser model with low mass ratio subjected to uniform flows in a towing tank at subcritical Reynolds numbers. Qualisys video motion capture system was used to measure VIV and Spring bars are used instead of commonly used parallel linkage mechanism for this kind of test. The circular cylinder of 100 mm in diameter and 1.5 m in length was towed vertically at constant speeds through the towing tank to simulate uniform current condition. Some key VIV parameters such as amplitude over diameter, lift and drag coefficients are presented against a non dimensional parameter known as reduced velocity to understand the effects of VIV on two degree of freedom system.The relative magnitude of the super-upper response branch vibration amplitudes are emphasised in this particular study. Results of this paper can be used as validation materials for CFD analysis that is very important to design riser system for oil and gas industry, also mentioned experiment procedure can be treated as a guide for future endeavour to perform similar kind of tests. 2014 Conference or Workshop Item PeerReviewed Tofa, M. Mobassher and Abdul Malek, Adi Maimun and Ahmed, Yasser Mohamed and Jamei, Saeed and Abd. Kader, Ab. Saman and Abyn, Hassan (2014) Two degree of freedom vortex induced vibration tests of a riser model using spring bars. In: 4th International Conference on Mechanical and Manufacturing Engineering, ICME 2013, 17-18 Dec, 2013, Bangi, Putrajaya, Malaysia. http://dx.doi.org/10.4028/www.scientific.net/AMM.465-466.1339 |
| spellingShingle | TJ Mechanical engineering and machinery Tofa, M. Mobassher Abdul Malek, Adi Maimun Ahmed, Yasser Mohamed Jamei, Saeed Abd. Kader, Ab. Saman Abyn, Hassan Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title | Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title_full | Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title_fullStr | Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title_full_unstemmed | Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title_short | Two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| title_sort | two degree of freedom vortex induced vibration tests of a riser model using spring bars |
| topic | TJ Mechanical engineering and machinery |
| work_keys_str_mv | AT tofammobassher twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars AT abdulmalekadimaimun twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars AT ahmedyassermohamed twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars AT jameisaeed twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars AT abdkaderabsaman twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars AT abynhassan twodegreeoffreedomvortexinducedvibrationtestsofarisermodelusingspringbars |