基于有限元方法的铁塔结构虚拟仿真分析试验  

Virtual simulation analysis test of tower structure based on finite element method

作　　者：蒙博斌 马海鹏 田帅 王璋奇[1] MENG Bobin;MA Haipeng;TIAN Shuai;WANG Zhangqi(Department of Mechanical Engineering,North China Electric Power University,Baoding 071003,China;Ningxia Ningdian Electric Power Design Co.,Ltd.,Yinchuan 750000,China)

机构地区：[1]华北电力大学机械工程系,河北保定071003 [2]宁夏宁电电力设计有限公司,宁夏银川750000

出　　处：《实验技术与管理》2023年第11期116-122,共7页Experimental Technology and Management

基　　金：国网宁夏有限公司科技项目资助(SGTYHT/19-JS-215)。

摘　　要：分析和提高铁塔杆件的承载能力对于预防铁塔倒塌事故具有重要意义。鉴于此,该文结合铁塔结构有限元分析和虚拟仿真分析,研发了一套铁塔结构强度虚拟仿真试验系统。将输电铁塔简化成平面有限元模型,并采用Python编写了铁塔的有限元虚拟仿真分析程序,得到铁塔杆件在不同载荷下的内力变化规律,以及铁塔受压构件的承载能力;使用可视化方法直观展示铁塔的结构模型、杆件应力、杆件承载力以及杆件应力随载荷变化和分布状态,并模拟实际输电铁塔的加载过程。通过该仿真试验系统,技术人员可了解铁塔结构的受力情况,便于优化铁塔杆件材料和辅助材的布置方案,从而提高杆件的实际承载力,并完善铁塔结构的设计。It is of great significance to analyze and improve the bearing capacity of the rods to prevent the collapse of the towers.Therefore,this paper employs the finite element analysis and virtual simulation analysis methods to develop a virtual simulation experimental system for the strength of the iron tower structure.The transmission tower is simplified into a plane finite element model,the finite element virtual simulation analysis program of the tower is written in Python,and the law of internal force of the rod varies with the load as well as the bearing capacity of the tower compression members are obtained.Visual methods are adopted to visually display the structural model of the tower,the stress of the rod,the bearing capacity of the rod,and the change and distribution of the stress of the rod with the load,simulate the loading process of the actual transmission tower,Through this simulation test system,facilitate technicians can grasp and understand the stress situation of the tower structure,and optimize the layout plan of the tower rod materials and auxiliary materials to improve the actual bearing capacity of the rod,and improve the design of the tower structure.

关 键 词：铁塔失稳 有限元 虚拟仿真 承载力 辅助支撑 

分 类 号：TM753[电气工程—电力系统及自动化]