Abstract

The failures of rolling bearings of asynchronous traction motors of locomotives are studied. The malfunctions of rolling bearing units of locomotives are analyzed. The vibration and current signals and the corresponding frequency spectra of an electric motor when operating in normal conditions, as well as with bearing failures, are presented. A model to assess the technical condition of locomotive rolling bearings is developed, and the feasibility of proactive diagnosis, which makes it possible to identify defects in advance at an early stage of their development, is substantiated. The results of the study can be used in systems of real-time diagnosis of the technical condition of rolling bearings of asynchronous traction motors of locomotives.

中文翻译：

---

基于数据挖掘的机车异步电动机滚动轴承技术条件的诊断。

摘要

研究了机车异步牵引电动机滚动轴承的故障。分析了机车滚动轴承单元的故障。给出了在正常条件下以及轴承故障时电动机的振动和电流信号以及相应的频谱。建立了评估机车滚动轴承技术状况的模型，并建立了主动诊断的可行性，这种主动诊断可以在其开发的早期阶段提前发现缺陷。研究结果可用于机车异步牵引电动机滚动轴承技术状况的实时诊断系统。