基于Hilbert包络分析的铁路货车踏面擦伤诊断  

Wheel Tread Flat Diagnosis of Railway Freight Wagons Based on Hilbert Envelope Analysis

作　　者：丁颖 隋顺琦 王开云[2] 高贤波 DING Ying;SUI Shunqi;WANG Kaiyun;GAO Xianbo(CHN Energy Railway Equipment Co.,Ltd.,Beijing 100120,China;State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]国能铁路装备有限责任公司,北京100120 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《铁道车辆》2022年第2期52-55,共4页Rolling Stock

基　　金：国家自然科学基金资助项目(51825504)。

摘　　要：随着货物列车载重逐步提高,轮轨相互作用加剧,踏面擦伤问题日渐突出。为了及时监测和诊断车轮踏面擦伤,文章运用仿真分析手段,采用变轮径法建立了某型货车动力学模型,并采用Hilbert包络分析法对轴箱垂向加速度信号进行了分析。结果表明,Hilbert包络分析法能够有效地提取铁路货车踏面擦伤的特征频率,可以有效诊断出长度为15 mm及以上的踏面擦伤。With the increase of the axle loading of freight train,the interaction between wheel and rail becomes severe,and the wheel tread flat is becoming an increasingly prominent problem.In order to timely monitor and diagnose the wheel tread flat,this paper uses the simulation analysis method to establish a dynamic model of a certain type of freight wagon by using the wheel diameter variation method,and uses the Hilbert envelope analysis method to analyze the vertical acceleration signal of the axle box.The results show that Hilbert envelope analysis method can effectively extract the characteristic frequency of wheel tread flat for railway freight wagons.The wheel tread flat with length of 15 mm and above can be effectively diagnosed.

关 键 词：铁路货车 踏面擦伤 HILBERT 包络分析 故障诊断 

分 类 号：U270.331.1[机械工程—车辆工程]