| The Effect of Internal Fluid on the Response of Vortex-Induced Vibration of Marine Risers |
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| 作者姓名： | 郭海燕 王元斌 傅强 |
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| 作者单位： | CollegeofEngineering,OceanUniversityofChina,Qingdao266071,China |
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| 基金项目： | ThisworkisfinanciallysupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 0 3790 5 0 ) |
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| 摘 要： | Based on Iwan‘s wake oseillator model developed with the classical van der Pol equalion, the differential equation for the response of the vortex-induced vihration (VIV) of the riser considering the effect of the internal flowing fluid and the external marine environmental condition is derived. The effect of the intermal flowing fluid on the response of VIV of the riser is studied by means of the Finite Element Method. The results show that the effect of the internal fluid velocity on the VIV of the riser is strong when the natural frequency of the riser is close to the vortex shedding frequency. In addition, the increase of the top tension can decrease the sensitivity of the riser to the internal fluid velocity.
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| 关 键 词： | 海底取油管 海运 有限元法 动力学 |
The Effect of Internal Fluid on the Response of Vortex-Induced Vibration of Marine Risers |
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| GUO Hai-yan ,WANG Yuan-bin and FU Qiang College of Engineering,Ocean University of China,Qingdao ,China.The Effect of Internal Fluid on the Response of Vortex-Induced Vibration of Marine Risers[J].China Ocean Engineering,2004,18(1):11-20. |
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| Authors: | GUO Hai-yan WANG Yuan-bin and FU Qiang College of Engineering Ocean University of China Qingdao China |
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| Institution: | GUO Hai-yan 1,WANG Yuan-bin and FU Qiang College of Engineering,Ocean University of China,Qingdao 266071,China |
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| Abstract: | |
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| Keywords: | marine riser internal fluid vortex-induced vibration dynamic response |
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