摘要
Spar平台是深水和超深水海域中极具竞争力的平台类型。Spar平台中刚性立管顶端所需的张力由月池内部的浮力罐提供,浮力罐在水平方向由导向架支撑。平台运动过程中,浮力罐及立管与平台主体发生相对运动和相互动力作用,在水平方向上发生带有空隙效应的碰撞现象,在垂向产生库仑摩擦效应。这是一种复杂的非线性多点接触耦合动力现象,对平台主体和浮力罐的运动及性能都有着重要影响。因此,无论从平台主体设计及水动力性能方面,还是从浮力罐疲劳分析及安全性方面考虑,都有必要对Spar平台与浮力罐之间的耦合动力作用进行深入的研究。在介绍目前国际上Spar平台与浮力罐相关研究情况及进展的基础上,提出了今后研究的有关建议。
Spars are the most attractive types of deep and ultra deep water production platforms. The top tensioned risers （ITR） are important facilities on Spar platforms. The top tension of a riser is provided by the buoyancy cans that are laterally supported by guide frames. During the motions of a Spar in a certain sea state, the buoyancy cans and 3TRs will induce relative motion and dynamic interaction with the main hull. Thus, it causes the occurrence of both collisions with gap effect in the lateral direction and Coulomb damping in the vertical direction. It is a complicated nonlinear multi-contact coupling phenomenon, and it affects the motion performances of both the main body and the buoyancy cans. Not only for the design and hydrodynamic performance study of the main body, but also for the fatigue analysis and safety of the buoyancy cans, it is necessary to pay much attention to the coupled dynamic analysis of the Spar with buoyancy can. This paper presents the related studies and achievements in recent years. The suggestions for further studies in this field are made as well.
出处
《海洋工程》
CSCD
北大核心
2008年第2期140-146,154,共8页
The Ocean Engineering
基金
上海市科委重大基础研究课题资助项目(05DJ14001)
关键词
SPAR平台
浮力罐
耦合运动
刚性立管
导向架
Spar platform
buoyancy can
coupled motion
top tensioned risers
guide frame
