地铁列车空气制动系统仿真模型

左建勇; 王宗明; 吴萌岭

doi:10.19818/j.cnki.1671-1637.2013.02.006

地铁列车空气制动系统仿真模型

doi: 10.19818/j.cnki.1671-1637.2013.02.006

同济大学铁道与城市轨道交通研究院, 上海 200092

基金项目:

国家863计划项目 2011AA110503-3

牵引动力国家重点实验室开放课题 TPL1107

详细信息

作者简介:
左建勇(1976-), 男, 山西运城人, 同济大学副教授, 工学博士, 从事列车制动与安全研究

中图分类号: U270.35
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出版历程
- 收稿日期: 2012-11-20
- 刊出日期: 2013-04-25

Simulation model of air braking system for subway train

Institute of Railway and Urban Mass Transit, Tongji University, Shanghai 200092, China

More Information

Author Bio:
ZUO Jiaryong(1976-), male, associate professor, PhD, +86-21-69584712, zuojy@tongji.edu.cn

Article Text (Baidu Translation)

摘要

摘要: 分析了地铁列车空气制动系统工作原理与构成, 研究了容性、阻性和感性单元三类基本气动元件建模原理, 根据相似性原理, 通过AMESim软件建立了地铁列车空气制动系统仿真模型, 介绍了空重车阀、EP单元、中继阀等部件建模过程, 并对仿真参数进行了分析。研究了常用制动、紧急制动和阶段制动工况下制动缸压力与Cv压力变化特性, 并进行了试验台对比验证。分析结果表明: 在常用、紧急制动时, Cv压力比制动缸压力响应快, 最大延时不超过0.5 s, 稳定时两者压力相等; 紧急制动时制动缸压力上升至定压的时间小于1.5s, 常用制动时小于2.2 s; 阶段制动时制动缸压力与Cv压力跟随性较好。试验中制动稳定后Cv压力比制动缸压力高约15 kPa, 由中继阀内部橡胶件阻尼作用引起, 该误差不影响中断阀正常使用。
- 地铁列车 /
- 空气制动系统 /
- 建模仿真 /
- AMESim软件 /
- 紧急制动 /
- 常用制动
Abstract: The structure and operating principle of air braking system for subway train were introduced. The modelling methods of three basic types of pneumatic components including capacitive, resistive and inductive unit were explained. The simulation model of air braking system was built based on the similarity principle and the AMESim.The models and simulation parameters of load valve, EP unit and relay valve were analyzed. The characteristics of brake cylinder and Cv pressures were discussed under service brake, emergency brake and phased brake, and the result was verified by test bench. Analysis result shows that Cv pressure response is faster than the pressure response of brake cylinder in service and emergency brake, the maximum delay is no more than 0.5 s, and the stabilities of both pressures are equal. It takes less than 1.5 s when brake cylinder pressure rises to the constant pressure in emergency brake, and the value is less than 2.2 s in service brake. Regarding phased brake, brake cylinder pressure and Cv pressure follow better. In test, stabile Cv pressure is about 15 kPa higher than brake cylinder pressure because of the damping effect of internal rubber parts of relay valve, but the error does not affect the normal use of relay valve.
- subway train /
- air braking system /
- modelling and simulation /
- AMESim software /
- emergency brake /
- service brake

HTML全文

图 1 地铁车辆气制动系统

Figure 1. Air braking system of metro vehicle

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图 2 空气制动系统仿真模型

Figure 2. Simulation model of air braking system

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图 3 EP单元仿真模型

Figure 3. Simulation model of EP unit

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图 4 空重车阀仿真模型

Figure 4. Simulation model of load valve

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图 5 中继阀模型

Figure 5. Model of relay valve

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图 6 常用制动与紧急制动仿真结果

Figure 6. Simulation results of service and emergency brake

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图 7 阶段制动仿真结果

Figure 7. Simulation result of phased brake

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图 8 空气制动系统试验台

Figure 8. Test bench of air braking system

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图 9 常用制动与紧急制动试验结果

Figure 9. Test results of service and emergency brake

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表 1 中继阀模型参数

Table 1. Parameters of relay valve model

参数	值
活塞直径/mm	88
弹簧刚度/(N·mm^-1)	80
弹簧预压力/N	160
排气阀预开度/mm	2

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