动车组制动系统电源板卡可靠性试验研究  

Experimental Study on Reliability of Power Board of EMU Braking System

作　　者：殷忠晴 董强 YIN Zhongqing;DONG Qiang(CRRC Tangshan Locomotive&Rolling Stock Co.,Ltd.,Tangshan 064000,China)

机构地区：[1]中车唐山机车车辆有限公司,河北唐山064000

出　　处：《铁道车辆》2025年第2期29-37,共9页Rolling Stock

摘　　要：为保障动车组制动系统故障率可控及运行安全,有必要对制动系统电源板卡长期服役后的可靠性进行深入研究。利用高温老化试验、恒温恒湿试验和高低温冲击试验对电源板卡进行了加速寿命试验研究,根据试验结果分析了板卡寿命分布规律及可靠性。分析结果表明,一轮五级修前,电源板卡可靠度可达到95%,二轮五级修前可靠度可达到90%。根据分析结果,提出了五级修电源板卡检修建议及运用要求。To guarantee a manageable failure rate and secure operation of the EMU braking system,thorough investigation is required into the reliability of the braking system power board after prolonged use.High-temperature aging test,constant temperature and humidity test,and high-and-low-temperature impact test are utilized to investigate the accelerated lifespan of power supply boards.The life distribution law and reliability of the board are analyzed based on the test results.The analysis results indicate that the power supply board's reliability can attain 95%before the initial five-level maintenance,and it can attain 90%before the second five-level maintenance.Based on the analysis results,maintenance suggestions and application requirements are presented for a five-level repair power supply board.

关 键 词：动车组 制动系统 电源板卡 可靠性 高级修 

分 类 号：U270.35[机械工程—车辆工程]