抗冰导管架平台动力特性分析  

Dynamic characteristics analysis of ice-resistant jacket platforms in Bohai Sea

作　　者：张大勇[1] 岳前进[1] 车啸飞[1] 刘圆[2] 李辉辉 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116023 [2]中国船级社海工审图中心,天津300457 [3]中海油能源发展北京分公司,北京100027

出　　处：《海洋工程》2010年第1期18-24,共7页The Ocean Engineering

基　　金：863计划资助项目(2001AA602015);博士后基金资助项目(20090461168)

摘　　要：目前的抗冰导管架平台结构设计主要是考虑极限冰力引起的破坏,尚未形成基于动冰力响应分析的结构设计。为了更好研究冰荷载、冰激振动机理以及提出合理的概念设计,冰荷载下抗冰导管架结构的动力特性分析是十分必要的。基于现场冰与导管架结构相互作用的多年观测以及数值模拟研究,分析渤海辽东湾典型导管架结构在交变冰力作用下的动力特性,提出了适于冰荷载研究与抗冰导管架结构概念设计、分析的简化力学模型,解释柔性抗冰导管架结构动力效应显著的原因。The oil and natural gas resources of Bohai Bay in China mainly consist of marginal oil fields, and the ice force is the dominant environmental force for the offshose structures. At present, the design of ice-resistant structures focuses on how to endure an extreme force. No practical dynamical ice force model or design code is available and no failure mode analyses of ice-resistant jacket structures axe made. In order to build the practical dynamic ice force model to know the mechanics of the ice vibration, and to give the reasonable conception design, and based on the field monitoring data and numerical simulation of oil platforms in Bohai Gulf, dynamic characteristics analysis of ice-resistant jacket platforms is made in the paper. The paper also presents a simplified mechanical model and explains the reason why the dynamic effect of the ice-resistant jacket structure is significant.

关 键 词：抗冰导管架平台 动力特性 力学模型 冰激振动 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]