IMECH-IR  > 流固耦合系统力学重点实验室
Study on suppressing the vortex-induced vibration of flexible riser in frequency domain
Song JX(宋吉祥)1,2; Chen WM(陈伟民)1,2; Guo SX(郭双喜)1,2; Yan DB(严定帮)1,2
Corresponding AuthorChen, Weimin(wmchen@imech.ac.cn)
Source PublicationAPPLIED OCEAN RESEARCH
2021-11-01
Volume116Pages:12
ISSN0141-1187
AbstractVortex-induced vibration (VIV) may cause severe fatigue damage on deep-sea flexible risers. In many researches on active control of VIV, numerical simulation is widely used because of its suitability for parametric studies and lower cost compared to experiments. However, the existing numerical simulations rarely consider the change of lift during the active control of VIV due to the complexity of the control method. Moreover, the calculation time of numerical simulation is relatively long in the time domain. To solve these problems, the active control proposed in this paper is carried out in the frequency domain. A boundary control method considering the change of lift force is proposed through an active control bending moment is applied to the top of riser. Compared with the experimental and numerical results of the flexible riser model under shear flow, the effectiveness of the proposed method is verified. In addition, the effects of different shear currents and different controlled bending moments on structural fatigue damage are studied. The results demonstrated that the reduction of fatigue damage is smaller when the control bending moment is small. As the control bending moment increases, the reduction of fatigue damage increases. However, when the control bending moment exceeds the critical value, the fatigue damage no longer decreases. From the total power perspective, the control energy and the proportion of energy in the system increase with the growth of the control moment. It is difficult to directly obtain the optimal control bending moment although there is an optimal control bending moment. Trial calculations are used to obtain the optimal control bending moment in this paper. The greater the shear currents, the greater the required control bending moment.
KeywordFlexible riser Vortex-induced vibration Active control Frequency domain
DOI10.1016/j.apor.2021.102882
Indexed BySCI ; EI
Language英语
WOS IDWOS:000705510700005
WOS KeywordBOUNDARY CONTROL ; ACTIVE CONTROL ; MARINE RISERS
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Ocean ; Oceanography
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA22000000]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences
Classification二类
Ranking1
ContributorChen, Weimin
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/87603
Collection流固耦合系统力学重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Song JX,Chen WM,Guo SX,et al. Study on suppressing the vortex-induced vibration of flexible riser in frequency domain[J]. APPLIED OCEAN RESEARCH,2021,116:12.
APA 宋吉祥,陈伟民,郭双喜,&严定帮.(2021).Study on suppressing the vortex-induced vibration of flexible riser in frequency domain.APPLIED OCEAN RESEARCH,116,12.
MLA 宋吉祥,et al."Study on suppressing the vortex-induced vibration of flexible riser in frequency domain".APPLIED OCEAN RESEARCH 116(2021):12.
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