摘要
以DSA200型受电弓为研究对象,考虑所有部件的运动,建立受电弓机构的平面运动方程,基于2质量模型对受电弓的等效参数进行识别,得到框架等效阻尼、框架归算质量与工作高度的关系以及弓头等效刚度与铝支架垂向位移的关系。依据相关标准,得到受电弓将强度载荷工况和疲劳载荷工况,利用ANSYS对受电弓结构强度进行分析,各部件在静载荷下的最大应力均小于材料屈服强度;利用Goodman曲线评估受电弓焊缝疲劳强度,各部件疲劳强度满足要求。
Based on the study of DSA200 pantograph,the motion equation of pantograph was established considering the motion of all the components and the parameters of the two-mass equivalent model of the pantograph were identified.The relationship between equivalent parameters of the frame and working height as well as between the equivalent stiffness of the collector head and the vertical displacement of the aluminum support were calculated.According to the relevant standards of the pantograph,the static and fatigue load conditions were obtained.The structural strength of the pantograph was analyzed by ANSYS,and the maximum stress of each component under static load was less than the yield strength of the material.The Goodman curve was used to evaluate the fatigue strength of welding and each component meets the requirements of fatigue strength.
作者
贾荣
王俊勇
辜晨亮
JIA Rong;WANG Junyong;GU Chenliang(Beijing CRRC CED Railway Electric Tech Co.,Ltd.,Beijing 100176,China;College of Mechanical Engineering,Southwest JiaoTong University,Chengdu 610031 Sichuan,China)
出处
《铁道机车车辆》
北大核心
2020年第5期78-83,共6页
Railway Locomotive & Car
关键词
受电弓
归算质量模型
参数识别
静强度
疲劳强度
pantograph
mass model
parameter identification
static strength
fatigue strength