摘要
围绕新一代海洋超深水平台系泊链开展力学性能分析和横档外形轻量化设计工作.首先,针对系泊链变曲面不规则的外形特征和复杂的受力形式,提出了区别化网格划分方法,获得了系泊链结构的应力应变分布规律.根据规律,对横档结构进行了轻量化设计,分析了决定横档结构性能的两个关键参数,并通过建立系列有限元模型,得出两个参数对系泊链性能的影响规律.轻量化后的R6系泊链应力场分布更为理想,横档重量降低了13.53%,进一步提升了海洋超深水平台系泊系统的综合性能.
Mechanical properties analysis and lightweight design for stud structure are carried out for the newest R6 ultra-deep mooring chain. First, according to the curved surface and complicated load transfer mechanism features of R6 mooring chain, differentiating gridding division method and load simulation method are proposed, and the stress distribution of the chain is calculated. Based on the calculated results, two key influencing parameters of the stud structure are selected to reduce the chain's weight. Then, the effects of two factors on the chain's performance are studied through serial FE models calculated results. Structure evaluation results show that the stress field of the lightweight chain is more optimistic, and the stud weight is decreased 13.53%. The lightweight design work has further promoted the chain's comprehensive properties of ultra deep-water platform.
出处
《船舶力学》
EI
CSCD
北大核心
2017年第z1期567-572,共6页
Journal of Ship Mechanics
关键词
R6系泊链
横档结构
有限元分析
轻量化设计
R6 mooring chain
stud structure
finite element analysis
lightweight design
