摘要
考虑浮式平台垂荡引起的顶张式立管参数振动对横向振动的影响及立管与流体的流固耦合作用,开展了深水顶张式立管参数振动与涡激振动耦合振动分析方法研究,提出了深水顶张式立管参数振动与涡激振动耦合的振动模型。利用耦合振动模型对1 500 m水深的顶张式立管进行了算例分析,结果表明:由平台垂荡引起的立管参数振动加剧了立管横向振动的幅值,并且在同一海流速度下沿不同轴向位置处立管的参数振动对立管横向振动幅值的影响不尽相同,立管的参数振动对顺流向振动幅值的影响大于对横流向振动幅值的影响。
Considering the vertical vibration, caused byfloating platform, of top tensed riser （TTR）, an anal- ysis method for the coupled vibration of parameter ex- cited vibration and vortex-induced vibration is presen-ted in this paper. A model for coupled vibration of pa- rameter excited vibration and vortex-induced vibration is put forward. And the vortex-induced vibration （VIV） of a TTR for 1500m water depth is analyzed based on the model. The results show that the vertical vibration caused by floating platform increases trans- verse vibration displacement of TTR, with the sec-tion rotation and shear deformation due to the ben-ding large displacement of TTR.
出处
《中国海上油气》
CAS
CSCD
北大核心
2014年第4期100-105,共6页
China Offshore Oil and Gas
基金
国家自然科学基金项目(编号:51179179
51079136)部分研究成果
关键词
深水
顶张式立管
参数振动
涡激振动
流固耦合
Key words., deep water
parameter excited vibra-tion
top tensed riser
vortex-induced vibration
fluid-structure interaction
