摘要
介绍了建立桁架自升式平台有限元模型的过程,对关键部位(主船体、桩腿与主船体的连接部位、桩靴和土的相互作用)的模拟方法进行了阐述,给出了非圆形截面桁架式桩腿水动力系数、惯性力和P-Delta效应的计算方法。利用SACS软件对某桁架自升式钻井平台桩腿结构进行了在位分析,得到了环境载荷、惯性力、桩靴反力和桩腿构件的UC值,结果满足规范要求。
The finite element model of the truss jack-up platform is introduced,especially for some key positions such as hull,the connection of leg and hull,the interaction between spud can and soil is detailed clarified.The method of hydrodynamic coefficient of the truss leg platform,inertia force and P-Delta effect are given out.Site specific analysis of the leg of some truss self-elevating jack-up platform is carried out by SACS software,at the same time the environmental loads,inertial loads,reaction of spud-can and the UC value of leg structure are obtained.The results meet the requirement of rules.
出处
《中国海洋平台》
2011年第2期22-26,42,共6页
China offshore Platform
关键词
桁架自升式钻井平台
在位分析
有限元法
truss self-elevating drilling platform
in-place analysis
finite-element method
