A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads
A tuned-mass damper (TMD) is applied to ensure the safety and stability of an offshore platform in practice; however, damper stroke and response delay problems always result in intractable performances of vibration control while exposed to large earthquake loads. Therefore, this paper proposes a buf...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2016/9702152 |
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| _version_ | 1832554459095367680 |
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| author | Qiong Wu Xilu Zhao Shuai He Wenxian Tang Rencheng Zheng |
| author_facet | Qiong Wu Xilu Zhao Shuai He Wenxian Tang Rencheng Zheng |
| author_sort | Qiong Wu |
| collection | DOAJ |
| description | A tuned-mass damper (TMD) is applied to ensure the safety and stability of an offshore platform in practice; however, damper stroke and response delay problems always result in intractable performances of vibration control while exposed to large earthquake loads. Therefore, this paper proposes a bufferable TMD, a passive TMD with buffers on both sides, to improve the performance of offshore platforms subjected to large seismic waves. A comprehensive simulation and experimental study was executed to investigate the dynamic performances of the bufferable TMD, by application of a 1 : 200-scale offshore platform prototype. It is verified that the bufferable TMD can be effective in absorbing the stroke energy, while the damper exceeds limitations of motion. Meanwhile, the bufferable TMD can maintain high-response characteristics. In conclusion, the experimental results indicate that the displacement, acceleration, and frequency performances of an offshore platform can be significantly decreased, and the evaluation indices show that the method is effective in reducing overall vibration levels and maximum peak values, with the application of the bufferable damper system. |
| format | Article |
| id | doaj-art-d30c5b54e24142878482a5e4469d9ae1 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d30c5b54e24142878482a5e4469d9ae12025-02-03T05:51:27ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/97021529702152A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake LoadsQiong Wu0Xilu Zhao1Shuai He2Wenxian Tang3Rencheng Zheng4College of Mechanical Engineering, Saitama Institute of Technology, Saitama 369-0293, JapanCollege of Mechanical Engineering, Saitama Institute of Technology, Saitama 369-0293, JapanCollege of Mechanical Engineering, Saitama Institute of Technology, Saitama 369-0293, JapanJiangsu University of Science and Technology, Jiangsu 2212003, ChinaInstitute of Industrial Science, The University of Tokyo, Tokyo 153-8505, JapanA tuned-mass damper (TMD) is applied to ensure the safety and stability of an offshore platform in practice; however, damper stroke and response delay problems always result in intractable performances of vibration control while exposed to large earthquake loads. Therefore, this paper proposes a bufferable TMD, a passive TMD with buffers on both sides, to improve the performance of offshore platforms subjected to large seismic waves. A comprehensive simulation and experimental study was executed to investigate the dynamic performances of the bufferable TMD, by application of a 1 : 200-scale offshore platform prototype. It is verified that the bufferable TMD can be effective in absorbing the stroke energy, while the damper exceeds limitations of motion. Meanwhile, the bufferable TMD can maintain high-response characteristics. In conclusion, the experimental results indicate that the displacement, acceleration, and frequency performances of an offshore platform can be significantly decreased, and the evaluation indices show that the method is effective in reducing overall vibration levels and maximum peak values, with the application of the bufferable damper system.http://dx.doi.org/10.1155/2016/9702152 |
| spellingShingle | Qiong Wu Xilu Zhao Shuai He Wenxian Tang Rencheng Zheng A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads Shock and Vibration |
| title | A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads |
| title_full | A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads |
| title_fullStr | A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads |
| title_full_unstemmed | A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads |
| title_short | A Bufferable Tuned-Mass Damper of an Offshore Platform against Stroke and Response Delay Problems under Earthquake Loads |
| title_sort | bufferable tuned mass damper of an offshore platform against stroke and response delay problems under earthquake loads |
| url | http://dx.doi.org/10.1155/2016/9702152 |
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