摘要
针对跨坐式单轨车辆受电弓在运行时出现断弓的问题,依靠固定界面模态综合法,建立该型跨坐式单轨车辆弓网刚柔耦合多体动力学模型,并通过与测试试验的对比验证了模型的正确性。探讨了各杆件的动应力响应,得到了各杆件的振动特性,并采用准静态应力叠加法对受电弓进行了疲劳强度分析。仿真结果与该型单轨受电弓的实际断弓位置相吻合,从而验证了基于刚柔耦合模型对受电弓进行疲劳分析的正确性。
Targeting the broken bow problem of straddle monorail vehicle pantograph during operation,relying on fixed interface modal synthesis method,rigid-flexible coupling multi-body dynamics model of the straddle monorail vehicle pantograph is established,and the correctness of the model is verified by comparison with the test experiment.The dynamic stress response of each rod is discussed,and the vibration characteristics of each rod are obtained.The fatigue strength of the pantograph is analyzed by quasi-static stress superposition method.The simulation results are consistent with the actual broken position of the pantograph,which verifies the correctness of the fatigue analysis of the pantograph based on the rigid-flexible coupling model.
作者
杜子学
何超
杨震
周军超
许舟洲
DU Zixue;HE Chao;YANG Zhen;ZHOU Junchao;XU Zhou zhou(Research Institute of Rail Transit,Chongqing Jiaotong University,400074,Chongqing,China)
出处
《城市轨道交通研究》
北大核心
2021年第1期16-21,共6页
Urban Mass Transit
基金
国家自然科学基金项目(51475062)
重庆市研究生科研创新项目(2108B0107)。
关键词
跨坐式单轨
车辆受电弓
多体动力学
刚柔耦合模型
疲劳强度
straddle monorail
vehicle pantograph
multi-body dynamics
rigid-flexible coupling model
fatigue strength
作者简介
杜子学,教授。
