造船龙门起重机主梁结构件的疲劳试验与分析  

Fatigue test and analysis of main girder structure of shipbuilding gantry crane

作　　者：郭晓光 许成斌 殷鹏 王欣[2] Guo Xiaoguang;Xu Chengbin;Yin Peng;Wang Xin

机构地区：[1]大连船舶重工集团有限公司,大连116000 [2]大连理工大学机械工程学院,大连116024

出　　处：《起重运输机械》2020年第7期63-67,共5页Hoisting and Conveying Machinery

摘　　要：以580吨级造船龙门起重机主梁结构为研究对象,通过设计结构试件进行疲劳试验,获得试件在不同应力水平下的疲劳寿命循环次数,同时观测试件的裂纹形成、扩展现象。最后,根据试验结果拟合出的S-N曲线,对照选取标准中的S-N曲线,为结构疲劳分析提供试验依据。Taking the main girder structure of 580 t shipbuilding gantry crane as the research subject, we used the designed structural specimens to carry out fatigue tests, obtained the fatigue life cycle times of the specimens under different stress levels, and observed the crack formation and propagation of the specimens. Finally, the S-N curve fitted according to the experimental results was compared with the S-N curve in the selected standard, which provides experimental basis for structural fatigue analysis.

关 键 词：造船龙门起重机 主梁 疲劳试验 断口分析 

分 类 号：U653.921[交通运输工程—港口、海岸及近海工程]