受电弓等效模型参数识别及动态性能测试  

Lumped Mass Model for Dynamic Performance Simulation of Pantograph

作　　者：周宁[1] 张卫华[1] 王冬[2] 

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031 [2]中国北车长春轨道客车股份有限公司,吉林长春130000

出　　处：《西南交通大学学报》2011年第3期398-403,共6页Journal of Southwest Jiaotong University

基　　金：国家973计划资助项目(2007CB714700);国家自然科学创新研究群体科学基金资助项目(50821063);国家自然科学基金优秀国家重点实验室资助项目(50823004)

摘　　要：为了得到合理的受电弓等效模型和参数,将受电弓结构等效为2质量块和3质量块模型,通过实验方法,对其质量、刚度和阻尼进行识别,得到了不同等效模型的力学参数.基于测得的等效参数建立受电弓数学模型,进行弓网动力学仿真计算,并将计算得到的接触力结果与利用弓网混合模拟试验台测得的实验数据进行对比.结果表明:对于2质量块和3质量块模型,最大和最小接触力的最大偏差分别为36.95、20.84 N和23.97、12.02 N,该测试方法可以用于受电弓等效模型参数的辨识.The pantograph was simplified as a model with two and three lumped masses to measure the dynamic performance of the pantograph.The parameters of the model,including the masses,stiffness and damping of the pan-head,the upper frame and the lower frame were identified experimentally.The dynamic contact forces between the pantograph and the catenary were calculated based on the parameters and compared with available experimental data,showing that the maximum errors of the maximum and minimum contact forces were 23.97 and 12.02 N for the pantograph model with three lumped masses,and 36.95 and 20.84 N for that with two lumped masses,respectively.

关 键 词：受电弓 等效模型 参数识别 动态性能 

分 类 号：U264.34[机械工程—车辆工程]