基于极值外推的高速列车齿轮传动装置载荷谱编制  

Compiling method of load spectrum of high-speed train gear drive system base on extreme value extrapolation

作　　者：宫海彬[1,2] 苏建[1] 王兴宇[3] 徐观[1] 张益瑞[1] 

机构地区：[1]吉林大学交通学院,长春130022 [2]上海汽车集团股份有限公司技术中心,上海201804 [3]长春轨道客车股份有限公司技术中心,长春130062

出　　处：《吉林大学学报（工学版）》2014年第5期1264-1269,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：吉林省科技发展计划项目(20080356);长春市科技支撑计划项目(2010018)

摘　　要：针对传统传动系载荷谱编制时计数及统计方法的局限性及高速列车齿轮传动装置载荷测量的特殊性,构建了基于电机有功功率的高速列车齿轮传动装置扭矩间接测量方案,统计了传动系扭矩转数历程,提出了一种基于极值理论及非参数密度估计相结合的载荷数据统计方法,从而获得了总体载荷样本概率密度分布函数,并据此建立了高速列车齿轮传动装置程序载荷谱,实现了载荷极值外推和载荷谱压缩。最后,基于实测车辆网端功率转数历程完成了一个高速列车齿轮传动装置载荷谱编制算例。For the limitations of traditional counting and statistic methods in drawing up load spectrum and the particularity of high-speed train gear drive load measurement, an indirect measurement scheme of torque of high-speed train drive system is proposed based on motor active power. Statistic calculation of the torque-revolution history of the gear drive system is carried out. Synthesizing extreme value theory and non-parametric probability density estimation, a load data statistical method is introduced. The probability density function of the overall load samples is obtained, and load extreme extrapolation and load spectrum compression are realized. Accordingly, high-speed train gear transmission unit＇s load spectrum is established. A case study based on measured network end power of rolling stock is presented to verify the proposed scheme.

关 键 词：车辆工程 载荷谱 极值外推 间接测量 

分 类 号：U264[机械工程—车辆工程]