陕西科技大学学报（自然科学版）Issue(2)：142-145,151,5.
门座起重机疲劳裂纹扩展寿命分析研究
Research on fatigue crack growth life of gantry cranes
摘要
Abstract
There are a lot of structural damages due to fatigue cracks in gantry cranes ,so it is very necessary to study the fatigue crack grow th life .First ,the fatigue crack grow th life is derived in theory ,based on the theory ;the analysis process of fatigue crack grow th life is obtained .T hen taking a crack of a 100 t gantry crane as the research object ,the size and loca-tion of the crack is determined by non-destructive testing ,accurate stress spectrum is ob-tained ,the fatigue crack grow th life is analyzed in a variety of typical conditions .Analysis re-sults indicate that the crack is safe .T his method can reflect the residual life of gantry cranes , and provide a reference for solving analysis of the residual life .关键词
疲劳寿命/裂纹扩展/起重机/无损探伤/应力谱Key words
fatigue life/crack grow th/crane/NDT/stress spectrum分类
机械制造引用本文复制引用
刘金,黄国健,王新华,黄志坚..门座起重机疲劳裂纹扩展寿命分析研究[J].陕西科技大学学报（自然科学版）,2014,(2):142-145,151,5.基金项目
国家质检总局科研专项项目（2012QK069、2013QK265）；珠江科技新星专项项目（2013075）；广东省安全生产专项项目 （）
