基于环境温度变化对有刷电动机工作特性影响的研究

Research on the Influence of Ambient Temperature Change on the Operating Characteristics of Brush Motor

电机是一种不均质体,由多种不同温度特性和膨胀系数的金属和非金属材料组成,因此环境温度骤变会引发电机故障甚至失效。为了探究环境温度变化对永磁式有刷直流力矩电动机工作性能的影响,本文以一台有刷直流力矩电动机为例,基于不同温变速率的温度循环筛选试验验证,建立试验现象分析与试验数据对比,明确了环境温度变化对有刷直流力矩电动机性能指标或系统可靠运行的影响,为军用武器装备系统研制阶段的方案设计提供了一定的工程实践价值和理论依据。

Motor is a kind of heterogeneous,composed of a variety of metal and non-metal materials with different temperature characteristics and expansion coefficient,so the sudden change of ambient temperature will cause motor failure or even failure.In order to explore the influence of ambient temperature change on the performance of permanent magnet brush DC torque motor,this paper took a brush DC torque motor as an example,based on the temperature cycle screening test verification of different temperature variable rates,established the analysis of test phenomena and the comparison of test data,and identified the influence of ambient temperature change on the performance index of brush DC torque motor or the reliable operation of the system.It provides some engineering practical value and theoretical basis for the program design of military weapon equipment system.