基于柔性多体动力学的三维接触网振动及零部件疲劳寿命分析  

作　　者：黎锋 罗明 皋金龙 宦荣华[3] 

机构地区：[1]天津中铁电气化设计研究院有限公司 [2]拟优(上海)软件科技有限公司 [3]浙江大学

出　　处：《电气化铁道》2020年第S01期21-25,共5页Electric Railway

摘　　要：本文针对高速电气化铁路接触网风致振动、弓网耦合振动以及零部件疲劳寿命,研究了基于柔性多体系统动力学的三维弓网耦合动力学模型建模方法,提出了基于反馈控制方法的三维接触网静态找形算法,以及多种吊弦疲劳分析模型和疲劳寿命分析算法,并开发了相应核心功能模块,包括线路及接触网参数化建模,接触网风致振动分析,弓网耦合振动分析,关键零部件疲劳寿命分析,以及自动生成分析报告的后处理模块。Aiming at the wind-induced vibration,the pantograph-catenary coupling vibration of the catenary and the resultant fatigue life of parts of the high-speed electrified railway catenary,this paper studies the modeling method of the dynamic interaction between three-dimensional pantograph and overhead catenary based on flexible multi-body system dynamics,and proposes a static form-finding algorithm of three-dimensional catenary based on the method of feedback control,as well as different dynamical models of dropper fatigue life analysis,have been developed corresponding core functional modules,including line and catenary parameterized modeling,wind-induced catenary vibration analysis,pantograph-catenary coupling vibration analysis,fatigue life analysis of key components and a post-processing module that automatically generates analysis reports.

关 键 词：多体动力学 三维接触网 风致振动 弓网耦合振动 疲劳寿命 

分 类 号：U225.3[交通运输工程—道路与铁道工程]