【作者】 雷松； 张文首； 赵岩； 岳前进；

【Author】 Lei Song~1,Zhang Wenshou~1,Zhao Yan~1,Yue Qianjin~1 (1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian,116024)

【机构】 大连理工大学工业装备结构分析国家重点实验室；

【摘要】 根据FDPSO的概念设计原理,建立了张力立管的力学模型,主要分析了FDPSO垂荡运动对涡激振动的影响。考虑了流的作用及立管的自重影响。结果表明垂荡运动频率引发的参数共振和涡激谐振共同发生时,立管有最大振幅的稳定响应;而垂荡运动的振幅对立管的涡激振动影响不大。更多还原

【Abstract】 Based on the concept design of FDPSO,mechanical model of risers with variable tension is presented, and fluid forces and submerged weight are considered.The dynamic analysis is done to research the influence of FDPSO heave motion to vortex-induced vibrations.The numerical results reflect that risers have large response under the combined action of"lock in"and parametric resonance,and amplitude of heave motion has little effect on the vibrations.更多还原