基于疲劳强度的某救援船上建端部节点优化研究  

On optimization of superstructure end nodes of rescue ship based on fatigue strength

作　　者：汤卫民 徐志亭[2] 曾文源[2] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《船舶》2017年第5期33-37,共5页Ship & Boat

摘　　要：船舶长上建端部通常都是全船高应力集中点,在此部位采用高强度钢可以满足屈服强度要求,但很难满足疲劳寿命要求。文中针对某救援船长上建端部典型节点,结合疲劳强度谱分析直接计算方法,比较不同结构形式下的疲劳寿命,给出上建端部典型节点的优化建议。The ends of long superstructure are usually the high stress concentration points of the ship, where the high strength steel should be used to meet the requirement of the yield strength. However, it is difficult to meet the requirement of the fatigue strength. The fatigue lives of the typical nodes of the long superstructure on a rescue ship with the different structure configuration are compared by using the direct calculation method for the fatigue strength spectral analysis. Some suggestions are given for the optimization of the typical nodes at the superstructure ends.

关 键 词：救援船 上建端部 疲劳强度 节点优化 

分 类 号：U661.43[交通运输工程—船舶及航道工程]