能流波动规律对电空制动电磁阀性能的影响

Effect of Energy Fluctuation Law on Performance of Electropneumatic Brake

摘要:

列车电空制动电磁阀的动态性能直接决定列车行车安全.基于电磁阀作用过程电磁场能流波动的规律以及对电磁阀动态特性影响分析研究，从提高其工作的灵敏度、稳定性和可靠性入手，通过调整电磁阀衔铁间隙、线圈匝数和弹簧预紧力等主要结构参数，控制电磁阀动态电磁场变化范围及优化性能参数，减少了电磁场能量输出，减缓了电磁阀工作温度的上升速度.

Abstract:

In the electropneumatic breaking system, the dynamic performance of the electropneumatic brake solenoid valve directly determines the train safety. To improve the sensitivity and reliability, the solenoid valve armature clearance, coil turns, spring preload and other major structural parameters were adjusted based on the law of electromagnetic wave energy flow fluctuation and its influence on the dynamic characteristics of valve during action process. The dynamic electromagnetic field range of changes was controlled, and the performance parameters were optimized. It is found that the electromagnetic field energy output was reduced and the operating temperature rising velocity was decreased.