KZ1型控制阀仿真模型及列车制动性能仿真研究  

The Simulation Model of KZ1 Control Valve and the Simulation Study on Train Braking Performance

作　　者：魏伟[1] 刘涛[1] 张军[1] 

机构地区：[1]大连交通大学载运工具先进技术重点实验室,辽宁大连116028

出　　处：《中国铁道科学》2010年第1期105-110,共6页China Railway Science

基　　金：教育部归国留学人员基金资助项目(2007-1108);辽宁省教育厅高等学校科研计划项目(20060109)

摘　　要：根据空气流动理论和KZ1型控制阀(KZ1阀)的工作原理,建立使用KZ1阀的列车空气制动系统仿真模型,并开发相应的列车空气制动仿真系统,对KZ1阀置于快速及普通位时单车的制动、缓解和紧急制动进行仿真。与试验结果对比表明,仿真模型能够较好地模拟单车制动性能。对KZ1阀应用于时速160 km快速货车的列车制动特性进行仿真分析可知,KZ1阀在快速位时的列车制动性能与104型控制阀接近,在普通位时与120型控制阀接近;KZ1阀在制动、紧急制动时性能较好,但是在缓解时波速过低,初步分析是由于副风缸容积过大所致。因此,使用KZ1阀的车辆与使用其他型号控制阀的车辆混编时,可能会发生缓解传播不连续的问题。A simulation model of the air brake system with KZ1 control valve （KZ1 valve） for freight train was established based on the air flow dynamics and the function principle of KZ1 valve. The simulation system of train air brake system was accordingly developed to simulate the service braking, release and emergency braking of a single wagon with KZ1 valve at different positions （quick and slow）. Compared with the test results, it shows that the simulation model can better simulate the braking performance of a single wagon. With this model, the braking performance of 160 km · h^-1 rapid freight train with KZ1 valve was simulated. It is known from the simulation results that KZ1 control valve has similar braking performance with 104 control valve when the switch is put on ＂quick＂ position, and it has similar performance with 120 control valve when the switch is put on ＂slow＂ position. KZ1 valve has good performance at emergency and service braking, but it has a shortage that the valve has a slow release speed. The possible reason of the preliminary analysis is the overcapacity of the auxiliary reservoir. For that reason, transmitting incontinuity problem would happen to KZ1 distribution valve when working with other kinds of distribution valves as releasing.

关 键 词：空气制动 控制阀 制动性能 制动仿真 气体流动 快速货车 

分 类 号：U270.35[机械工程—车辆工程]