基于张力腿平台的顶张紧式立管碰撞分析  

Analysis of Collisions between Top Tension Risers on a Tension Leg Platform

作　　者：阎岩 张崎[2,3] 黄一[2,3] 

机构地区：[1]航运技术与安全国家重点实验室,上海200135 [2]大连理工大学船舶工程学院,大连辽宁116023 [3]工业装备结构分析国家重点实验室,大连辽宁116023

出　　处：《上海船舶运输科学研究所学报》2012年第1期1-6,共6页Journal of Shanghai Ship and Shipping Research Institute

基　　金：国家高技术研究发展专项经费(863计划)(2008AA09A105-04)

摘　　要：基于张力腿平台(TLP)的顶张紧式立管(TTR),在平台运动、波浪及海流的联合作用下,相邻的立管可能发生碰撞并对其承载能力造成影响,有必要深入研究TTR在恶劣海况下的碰撞行为。采用有限元软件对两根生产立管进行数值模拟,设置两管碰撞前弯曲及后续动态碰撞两个分析过程来模拟TTR的碰撞行为;采用碰撞参与长度公式确定了TTR碰撞的接触区域。研究重点分析了立管碰撞前弯曲变形对碰撞结果的影响,为深水刚性立管局部碰撞行为的研究提供了方法。With the co-action of platform moving, wave and current collisions may happen between the adjacent risers of Top tension risers（TTR） of a tension leg platform （TTR）,which will affect the load capacity of the platform. The behavior under severe sea conditions is studied. The bending before collision and subsequent dynamic collisions of a pair of risers are simulated in two analysis processes by ABAQUS. The collision area is determined by means of involved length equation. The effect of bending before collision to the result o{ collision is main interest of this study. The study suggested a method for analyzing the collision between rigid risers at deep waters.

关 键 词：顶张紧式立管 参与长度 碰撞力 碰撞应力 弯曲变形 

分 类 号：P752[天文地球—海洋科学]