首页|Coupled Cross-Flow/in-Line Vortex-Induced Vibration Responses of a Catenary-Type Riser Subjected to Uniform Flows

Coupled Cross-Flow/in-Line Vortex-Induced Vibration Responses of a Catenary-Type Riser Subjected to Uniform Flows

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
A three-dimensional numerical scheme was developed to investigate the vortex-induced vibration(VIV)of a catenary-type riser(CTR)in the in-line(IL)and cross-flow(CF)directions.By using the vector form intrinsic finite element method,the CTR was discretized into a finite number of spatial particles whose motions satisfy Newton's second law.The Van der Pol oscillator was used to simulate the effect of vortex shedding.The coupling equations of structural vibration and wake oscillator were solved using an explicit central differential algorithm.The numerical model was verified with the published results.The VIV characteristics of the CTR subjected to uniform flows,including displacement,frequency,standing wave,traveling wave,motion trajectory,and energy transfer,were studied comprehensively.The numerical results revealed that the multimode property occurs in the CF-and IL-direction VIV responses of the CTR.An increase in the flow velocity has slight effects on the maximum VIV displacement.Due to structural nonlin-earity,the double-frequency relationship in the CF and IL directions is rarely captured.Therefore,the vibration trajectories display the shape of an inclined elliptical orbit.Moreover,the negative energy region is inconspicuous under the excitation of the uniform flow.

vortex-induced vibrationvector form intrinsic finite elementcatenary-type riserwake oscillator equation

LI Xiaomin、CAO Xi、LI Fuheng、YANG Zhiwen

展开 >

College of Engineering,Ocean University of China,Qingdao 266404,China

College of Hydrodynamic Engineering,Tianjin Research Institute for Water Transport Engineering,M.O.T,Tianjin 300456,China

National Key R&D Program of ChinaNational Science Foundation of ChinaBasic Funding of the Central Public Research InstitutesBasic Funding of the Central Public Research InstitutesBasic Funding of the Central Public Research InstitutesFundamental Research Funds for the Central Universitiespostdoctoral project of Shandongpostdoctoral project of Qingdao

2022YFB260280051979257TKS20210101TKS20220103TKS20230102202413018SDCX-ZG-202400218QDBSH20240101013

2024

10.1007/s11802-024-5909-1

中国海洋大学学报(自然科学英文版)
中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCD
影响因子：0.268
ISSN：1672-5182
年,卷(期)：2024.23(5)
  • 1