基于疲劳强度的大型散货船甲板纵骨防倾肘板优化  

Optimization of deck longitudinals at tripping bracket of large bulk carrier based on fatigue strength

作　　者：孙宇 张伟 沈晓迪 SUN Yu;ZHANG Wei;SHEN Xiao-di(Shanghai Waigaoqiao Shipbuilding Co.Ltd.,Shanghai 200137,China)

机构地区：[1]上海外高桥造船有限公司,上海200137

出　　处：《舰船科学技术》2022年第9期18-21,共4页Ship Science and Technology

摘　　要：针对大型散货船货舱区域甲板纵骨在防倾肘板处疲劳问题突出,需要增加船体梁剖面模数,从而引起结构重量增加的问题,通过寻求疲劳强度计算的替代方法,对比分析不同防倾肘板型式的应力集中因子,提出合理的设计建议及优化方案,为其他船型的类似结构节点设计提供参考,具有实际应用意义。In general,the fatigue problem of the longitudinal of the deck in the large bulk cargo compartment is more prominent at the tripping bracket.Therefore,it is necessary to increase the section modulus of the hull beam,which causes the problem of increasing the structural weight.By seeking an alternative method of fatigue strength calculation,this paper compares and analyzes the stress concentration factors of different types of tripping brackets.And reasonable design suggestions and optimization schemes are also proposed,which can provide reference for the design of similar structural joints of other ship types.

关 键 词：大型散货船 疲劳强度 防倾肘板 应力集中 

分 类 号：U661[交通运输工程—船舶及航道工程]