摘要
为解决地铁车辆构架端部悬挂部件的疲劳失效问题,文章以某地铁车辆天线梁结构为研究对象,建立有限元模型并进行修正。通过精确的仿真振动疲劳计算方法,确定导致该结构失效的主要原因。针对某条线路构架端部的振动加速度激励,开展结构优化研究。结果显示,弹性连接优化方法效果显著,为后续天线梁结构的设计及优化提供参考。
To address the fatigue failure of underframe-end suspended components on metro vehicles,this paper investigates an antenna beam structure.A finite element model was established and validated.Using a precise simulation method for vibrational fatigue analysis,the primary cause of the structural failure was identified.In response to the vibration acceleration excitations measured on a specific line,structural optimization was conducted.The results demonstrate that an elastic connection optimization approach is highly effective,providing reference for the future design and optimization of antenna beam structures.
作者
倪宝成
李龙涛
杨陈
王凇昊
胡廷洲
NI Baocheng;LI Longtao;YANG Chen;WANG Songhao;HU Tingzhou
出处
《智能城市》
2025年第11期30-35,共6页
Intelligent City
关键词
天线梁
振动疲劳
有限元模型修正
频响函数
结构优化
antenna beams
vibration fatigue
finite element model correction
frequency response function
structural optimization
