高速动车组制动风缸吊装结构振动特性分析  

Vibration Characteristics Analysis of Brake Air Cylinder Hoisting Structure of Electric Multiple Units

作　　者：高峰[1] 杨永勤[1] 宿崇[1,2] 马纪军[1] 张晓军[1] 朱玉波[1] 

机构地区：[1]中国北车集团唐山轨道客车有限责任公司,河北唐山063000 [2]大连交通大学机械工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2013年第5期20-24,共5页Journal of Dalian Jiaotong University

基　　金：国家科技支撑计划资助项目(2009BAG12A04)

摘　　要：为了解制动风缸吊装结构的振动特性,应用有限元分析软件ANSYS对两种吊装结构的风缸单元进行模态分析和瞬时振动加速度下的结构响应分析,获得了吊装结构的各阶固有频率和振型以及不同载荷工况下吊装结构的应力分布.仿真结果表明,方案一吊装结构的横向承载能力比纵向、垂向承载能力弱,横向刚度相对较低;吊装结构的最大应力出现在吊座与吊带的连接处,该位置结构强度相对较弱;方案二吊装结构的各阶固有频率和刚度均有所提高且最大应力幅值大幅降低.对比分析表明,方案二吊装结构的振动特性优于方案一.In order to assess the vibration characteristics of two kinds of hoisting structures of brake air cylin- der, vibration modal and structure response under transient vibration acceleration are analyzed by finite element analysis software ANSYS. Natural frequencies and vibration mode and stress distribution of the hoisting structure under different loading conditions are obtained. The simulation results show that the transverse loading ca- pacity of the first kind of hoisting structure is weak with respect to longitudinal and vertical loading capacity, which means that the transverse stiffness is relatively lower. The maximum stress of the hoisting structure ap- pears at the overlapping edge of its hoisting bracket and hoisting belt. The structure strength of the position is relatively weak. Natural frequencies and stiffness of the second kind of hoisting structure are increased, and the maximum stress significantly decreases. The comparative analysis shows that the vibration characteristics of the second kind of hoisting structure are superior to the vibration characteristics of the first one.

关 键 词：动车组 制动风缸 振动特性 数值仿真 

分 类 号：U266[机械工程—车辆工程]