Control method of unfavorable speed interval for high-speed trains

被引:0
作者
Wang, Lindong [1 ]
Huang, Qiang [1 ]
Zeng, Yuqing [1 ]
Lin, Fengtao [1 ]
机构
[1] China Acad Railway Sci, Locomot & Car Res Inst, Beijing 100081, Peoples R China
来源
JOURNAL OF MODERN TRANSPORTATION | 2012年 / 20卷 / 03期
关键词
high-speed trains; unfavorable speed interval; dynamic performance;
D O I
10.1007/BF03325793
中图分类号
U [交通运输];
学科分类号
08 ; 0823 ;
摘要
In tests on dynamic performance of high-speed trains, it is found that there is an unfavorable speed interval for some vehicles, which would be harmful to the daily operation of the vehicle. By analyzing the relationship of vibration frequencies of the vehicle and its running speed, this paper finds that the unfavorable speed interval is caused by the vibration superposition of the natural frequency of the vehicle system with the frequency of external excitation. Taking some electric multiple units (EMUs) as examples, we proposed an approach to obtaining the unfavorable speed interval of vehicles. By analyzing the relation between vibration frequencies and the running speed of the vehicle, the natural frequencies of the vehicle system and the external excitations are distinguished. In the end, we suggest some measures to minimize the negative influences of the unfavorable speed interval, such as shifting frequency, reducing or eliminating external excitation.
引用
收藏
页码:153 / 159
页数:7
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