起重运输机械Issue(4)：49-53,5.
纯剪切屈曲状态下板屈曲弹性嵌固系数研究
Research on elastic embedded coefficient of plate under pure shear buckling state
摘要
Abstract
Aiming at the problem of local instability of crane' s metal structure, the plate elastic embedded coefficients are introduced in the Crane Design Specification, to indicate the restraint of flange plates to the web. The finite element analysis is adopted for research on the basis of value selection of web elastic embedded coefficients under the pure shear state. The finite element calculation of ideal critical stress for the quadrilateral simply-supported plate is performed firstly, and the result is compared with the theoretical value, to verify the accuracy of finite element model and correctness of loading method. Then the flanged beam and box beam models are established according to actual engineering data, for the purpose of pure shear buckling analysis. The effect of thickness ratio of flange to web on the elastic build-in factors is discussed in the paper as well, with the suggestions beneficial for the engineering applications.关键词
起重机/屈曲失稳/弹性嵌固系数/纯剪切Key words
crane/ buckling instability/ elastic embedded coefficient/ pure shear分类
机械制造引用本文复制引用
董达善,李帅,甘茂椿,刘龙..纯剪切屈曲状态下板屈曲弹性嵌固系数研究[J].起重运输机械,2013,(4):49-53,5.
