列车管

CFD在列车管充压特性研究中的应用

Application of CFD in the Research of Charge Characteristic of Train Duct

列车管贯通状态检测的几个技术问题

Some Technology Problems of Measuring Through - going Status of the Pipe

二是监测列车管折角塞门开通关闭状态。

The second is diagnosing the closing fault of the train coupling cock .

利用机车监控装置判断列车管折角塞门状态

Using locomotive supervise and record apparatus to judge the condition of train line angle cock

并绘制了列车管减压速度引发自动制动机作用示意图，以助说明。

The schematic of the pressure reduction speed for train pipes resulting in the action of automatic brakes was plotted to illustrate the reasons .

第三部分是列车管、副风缸、制动风缸压力信号的采集与传输控制；

The third section is about the controlled and transmission of the pressure signals in train pip , auxiliary pressure air tank and bake tank ;

折角塞门安装在各车辆列车管的两端，用来开通和关闭各车辆列车管的送风通路。

Couping cock , installing at both ends of the train pipe , used to open and close the train pipe access to the air .

建立了考虑列车管泄漏的连续性方程，给出一种求解压力速度耦合方程的显式有限差分算法。

We have established the continuity equations under train pipe leakage condition and presented an explicit finite difference method to solve the pressure-velocity coupling equations .

本论文完成的工作包括便携式列车管气体压力测试仪的硬件设计与软件开发。

This paper presents a process of a " Portable Testing Instrument for Train Brake Pipe Gas Pressure ", including hardware design and software development .

系统根据给定列车管减压量可计算相应的制动距离，也可根据设定的停车目标位置反推出所需要的列车管减压量。

The system can calculate the braking distance according to the fixed reduction of train pipe pressure , and the best reduction of train pipe pressure with the desired parking location .

介绍了一种判断列车管折角塞门状态的新方法借助机车监控装置如何利用列车管充风和排风时间来判断列车管折角塞门的状态。

By this method locomotive supervise and record apparatus can be used to judge the condition of train line angle cock according to the air-filled time and air-bled time of train line .

用途：用于车钩连挂及车钩主风管风路、列车管风路、解钩管风路的密封性能试验，并可进行解钩、复位等功能试验。

Purpose : it is used to checking the air leakage of coupler connecting , main air pipe , train pipe , de-coupling pipe , it can also takes such function test as de-coupling and reset .

结论是，由于列车管容量增加、120阀逆流孔固有特性的影响和目前试行的120阀单车试验规范不够完善所致。

The conclusion is that the problem is caused by the increase of train pipe capacity , effect of the intrinsic characteristics of the reverse flow hole on valve 120 , and the non perfection of the single car test specifications for valves 120 applied on trial at present .

长大列车空气管系充气特性数值仿真研究

Numerical Simulation on Charging Characteristics of Heavy Haul Train Air Brake Pipe System

长大货物列车空气管系3维充气模型的数值仿真

Numerical Simulation of 3D Air-Charging Model of the Heavy Haul Train Air Brake Pipes System

应用现代计算流体动力学数值方法，首次建立了长大列车空气管系的二维充气特性模型。

By use of modern computational fluid dynamics method ( CFD ), 2-dimension air-charging characteristics model of the heavy haul train air brake pipe system is built .

该装置在非连接状态下使防尘门自动关闭，防止异物进入列车制动管系影响行车安全；

The utility model makes the dustproof gate close automatically under the condition of non-connection to prevent foreign bodies from entering the train brake pipe and affecting the safety of running .

因列车制动管过量供给，致使列车发生自然制动、车辆闸瓦过热冒烟被拦停；

When the train brake block becomes too hot and smokes because of the excessive supplies of the train brake tube , the train will be braked naturally and be stopped .

研究了列车编组辆数、管系组成、管系泄漏以及支管长度和直径大小等因素对列车管充气压力的影响。

How some key aspects , such as number of cars ( length ), train pipe system , leakage , the length of branch pipe and the diamond of the branch pipe and so on affect the distribution of the pressure in the pipe is studied .

列车制动系统的可靠性是影响车辆安全运行的重要因素，能否及时准确地获得列车制动系统中列车管气体压力的大小是列车运行安全的重要保证。

The reliability of train brake system is the key point to influence the safety of the train running , whether the gas pressure data of the train brake pipe can be precisely gained in time directly influences the safety of train running .