节点有限元分析在特种结构中的应用

摘要

本文论述了对特种结构进行节点细部分析的必要性,阐明了目前进行节点分析的四种方法,并依托大型通用有限元分析软件MIDAS FEA与MIDAS Gen,采用内力边界与位移边界综合施加方式,对某变电架构结构的重要梁柱节点板区进行分析;采用多尺度模型方式,对某网架结构中球形铰支座进行分析,得到相应的节点区应力结果,为工程设计提供参考.%This paper discussed the necessity of node detail analysis.The four methods of node detail analysis were illustrated.Using the large-scale general finite element analysis software MIDAS FEA and MIDAS Gen,a comprehensive way of internal force boundary and displacement boundary to analyze the beam-column joints plate area of a substation structure was applied.The spherical hinge bearing of a space truss structure in the multiscale model is analyzed.The corresponding stress of the joints can be used as a reference for other projects.