摘要
对铁路桥梁检修小车吊篮的不同工况进行了有限元分析与实测研究,理论和实验所得结论基本相同,认为原设计结构存在的缺陷,致使个别工况下吊篮结构的最大应力超过材料许用应力。在理论分析的基础上对其结构进行改进,最大应力明显减小,符合结构强度与刚度要求,使现场工作更加安全可靠。
Proceeded the finite element analysis and practical measure research to nacelle which was used for repairing railroad bridge under different working conditions. There is not difference between the conclusion from theory and the one from experiment. We think that there is some deficiency in the original structure. The deficiency caused that the maximum stress of the nacelle structure exceed the allowable stress of the material under some working conditions. Based on the theoretical analysis, we improved the structure so that the maxi-Max. stress obviously decreased. The nacelle structure accorded the strength and stiffness of the structure. Made the spot work more safe and dependable.
出处
《煤矿机械》
北大核心
2006年第8期41-43,共3页
Coal Mine Machinery
关键词
桁架结构
有限元分析
实测研究
材料应力
truss structure
finite element analysis
practical measure research
material stress
