摘要
为研究经典式Spar平台的涡激运动和驰振特性,开展了平台在系泊状态下的水池模型试验,分析不同流速作用下Spar平台的横荡运动特性,并通过对比仅流、仅波浪与波流耦合工况试验结果,分析波流耦合作用对Spar平台涡激运动和驰振运动性能的影响.结果表明:高折合速度的海流使得Spar平台发生驰振运动,相比涡激运动,其振荡周期更长、振幅更大,且具有随机性.波流耦合作用不会改变Spar平台流致运动的具体模式,但是显著影响流致运动的幅值.
In order to study the characteristics of vortex-induced motion and galloping of the classic Spar platform,a model test with a mooring system is conducted in basin.The sway motion characteristics of the Spar platform at different current velocities are analyzed.By comparing the results in currents,waves,and wave-current coupled conditions,the coupling effects of current and wave on vortex-induced motion and galloping of the Spar platform are also studied.The results show that galloping is induced by the currents with high reduced velocities.Compared with the vortex-induced motion,the galloping phenomenon has a longer period,larger amplitude,and randomness.The coupling of current and wave would not change the mode of flow-induced motion,but it significantly affects the motion amplitude.
作者
张晨雅
寇雨丰
吕海宁
肖龙飞
刘明月
ZHANG Chenya;KOU Yufeng;L Haining;XIAO Longfei;LIU Mingyue(State Key Laboratory of Ocean Engineering,Shanghai JiaoTong University,Shanghai 200240,China;SJTU-Sanya Yazhou Bay Instituteof Deepsea Science and Technology,Sanya 572024,Hainan,China)
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2021年第5期497-504,共8页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金重点项目(52031006)
国家自然科学基金青年科学基金项目(51909158)
国家重点研发计划(2018YFC0309700)。
关键词
单柱式平台
涡激运动
驰振
模型试验
海洋工程水动力学
Spar platform
vortex-induced motion
galloping
model test
hydrodynamics of marine engineering
