动车双螺旋电缆线剩余寿命预测模型设计与实验  

Design and Experiment of Remaining Life Prediction Model of Double Helix Cable for Bullet Train

作　　者：李彬 刘悦[1] 陈明颖 LI Bin;LIU Yue;CHEN Ming-ying(School of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun Jilin 130022,China)

机构地区：[1]长春理工大学机电工程学院,吉林长春130022

出　　处：《机械研究与应用》2020年第2期181-184,200,共5页Mechanical Research & Application

摘　　要：针对CRH380系列动车组车顶高压螺旋线寿命评估技术进行研究,通过建立双螺旋电缆寿命评估模型,判断达到五级修后延长其使用周期的可行性,从而实现降低高速动车组车辆运维成本的目的。通过对高压螺旋电缆老化机理和老化特征分析,确定电缆老化的主要影响因素;通过热老化加速寿命实验与击穿电压对比实验,确保加速寿命实验的合理性;利用数字化软件Matlab,对车顶高压螺旋电缆热老化实验相关数据进行分析,确定相对精确的寿命模型。实验结果表明,该寿命模型可以较为精确的计算出双螺旋电缆的剩余寿命。In this paper,the life evaluation technology of roof high voltage screw of CRH380 series bullet train is studied;through establishing the life evaluation model of the double helix cable,the feasibility of extending the life cycle after five-level repair is judged so as to reduce the operation and maintenance cost of high-speed EMU vehicles.Through the analysis of aging mechanism and aging characteristics of double helix cable,the main influencing factors of cable aging are determined;then,through the thermal aging accelerated life test and breakdown voltage comparison test,the rationality of accelerated life test is ensured;finally,using the digital software Matlab,the data related to the thermal aging experiment of the roof high-voltage spiral cable are analyzed to determine a relatively accurate life model.The experimental results show that this life model can accurately calculate the residual life of double helix cable.

关 键 词：双螺旋电缆 寿命评估 加速老化实验 退化模型 剩余寿命 

分 类 号：U266[机械工程—车辆工程]