摘要
文章介绍了船舶结构疲劳强度评估基本原理,并对一条2 200 t级小水线面双体船进行规范法疲劳强度评估。针对小水线面双体船结构特点,采用规范进行疲劳载荷计算;结合全船有限元计算结果进行疲劳部位筛选;采用有限元法提取疲劳部位的热点应力,并计算疲劳部位的累积损伤度。分析计算结果,提出疲劳部位优化方案。
The paper introduces the basic principle of fatigue strength assessment of ship structure, and does the fatigue strength assessment of a 2 200 t SWATH ship with rule. According to the SWATH structural characteristics, the fatigue load is calculated in rule. It selects the fatigue hotpot based on the results of the ship finite element calculation. The hotpot stress of fatigue parts is extracted by finite element method, and the cumulative damage of fatigue parts is calculated. The optimization scheme of fatigue parts is put forward by analyzing and calculating the results.
作者
郦羽
夏灏超
石雯
王伟
LI Yu;XIA Haochao;SHI Wen;WANG Wei(Shanghai Branch,China Ship Scientific Research Center;Shanghai 200011,China;2.CSIC Shanghai Marine Energy Saving Technology Development Co.,Ltd.,Shanghai 200011,China)
出处
《船舶工程》
CSCD
北大核心
2018年第9期10-13,91,共5页
Ship Engineering
关键词
小水线面双体船
有限元
疲劳热点
疲劳强度
S WA TH ship
finite element method
fatigue hotpot
fatigue strength
