Reliability of Relay Valve of Brake System for Rail Vehicles
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摘要: 通过耐久性试验评估轨道交通车辆制动系统用中继阀的可靠性.结果表明,中继阀的故障服从形状参数m=3.43的威布尔分布,故障率随试验循环次数增加而递增.主要故障模式是V型圈和复位弹簧的疲劳破坏.Abstract: The reliability of relay valves of brake system for rail vehicles was investigated by endurance test. The results show that the failures of the relay valve can be described as a Weibull distribution with a shape parameter of 3.43,and the failure rate increases with an increase in test cycles,and fatigue failure of the V-ring and returning spring is the major failure for the relay valve.
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Key words:
- railway vehicle /
- brake system /
- relay valve /
- reliability /
- endurance test
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