一种三体船结构疲劳分析的简化方法  

One simplified method for fatigue assessment of trimaran structure

作　　者：甄春博[1] 冯亮[2] 任慧龙 王天霖[1] 

机构地区：[1]大连海事大学交通运输装备与海洋工程学院,辽宁大连116026 [2]中国海洋大学工程学院,山东青岛266100 [3]哈尔滨工程大学多体船技术国防重点学科实验室,黑龙江哈尔滨150001

出　　处：《舰船科学技术》2015年第11期27-30,共4页Ship Science and Technology

基　　金：中央高校基本科研业务费专项资金资助项目(3132014318)

摘　　要：三体船连接桥部位应力集中严重,疲劳强度问题突出。针对三体船结构疲劳强度问题,从工况确定、载荷计算、累计损伤推导等方面进行研究,提出一种适用于三体船结构疲劳分析的简化方法,并以某三体船为例进行算例分析。算例分析结果表明该方法具有很好的适用性。文中所得结论对三体船的研发设计具有参考意义。The stress concentration of trimaran ship＇s cross-deck structure is serious and the problem of its fatigue strength appears particularly important. According to the problems of trimaran＇ s structure fatigue strength,the simplified method for the trimaran＇s fatigue strength evaluation is studies from the load case decision,load calculation,and the accumulative damage calculation. And one trimaran is chosen as example for studying the simplified method of fatigue strength evaluation. The example analysis results shows that the method given in this paper has a good applicability. The conclusion reached in this paper can offer the reference for the trimaran＇s design and development.

关 键 词：三体船 疲劳强度 简化方法 累计损伤 

分 类 号：U661.4[交通运输工程—船舶及航道工程]