Liu Hong-You/Yu Da-Lian
International Journal of Railway, vol. 2, no. 4, pp.147-151, 2009

Abstract : Railway vehicles equipped with semi-active suspension system can improve the ride quality of car bodies. Semi-active suspension system is usually applied onto high speed train, and therefore higher running safety requirement is proposed. The influence of semi-active suspension system on safety of vehicles running on straight line and curve line is studied, and the influences of sky hook damping coefficient and system time-delay on operation safety of cars fitted with semiactive suspension system is analyzed. The results show that the vehicles equipped with semi-active suspension system, not only the vibration of car body is decreased, it can also give little influence on running safety of cars, as a result, it will not endanger the running safety of cars.

Keyword : Semi-active suspension, On/off damping control, Continuous adjustable damping control, Sky hook, Running