Stabilization of Wheelset Hunting Motion by Gyroscopic Damper
A railway wheelset experiences the problem of hunting motion above a critical speed, which is known as a flutter-type self-excited oscillation due to a nonconservative contact force acting between wheels and rails.Traditional methods preventing the hunting motion are utilization of bolster and yaw-damper or improving the support stiffness.On the other hand, a stabilization control method of the flutter-type self-excited oscillation occurring in a bridge deck is proposed by utilization of gyroscopic damper.In this study, a stabilization control method for the hunting motion is proposed by a gyroscopic damper, in a similar way to a stabilization method for the bridge deck.Wheel of a railway vehicle generally has the tread angle to make the running performance on the curved rails smother.Large tread angle makes the running performance on the curved rails better while it produces hunting motion even at low speed.In order to improve the running performance on the straight rail, the utilization of a gyroscopic damper is proposed.The validity of the proposed method is theoretically and experimentally confirmed for the increase of the critical speed of the hunting motion.In this paper, more study considering constant curve was done by using SIMPACKTM simulation.
Shih-Pin LIN Hirokazu OKAMOTO Kentaro NISHIMURA Hiroshi YABUNO Yoshihiro SUDA
Institute of Industrial ScienceThe University of Tokyo4-6-1,Komaba,Meguro,Tokyo,153-8505,Japan KEIO University3-14-1 Hiyoshi,Kohoku-ku,Yokohama-shi,Kanagawa,223-006,Japan Institute of Industrial Science The University of Tokyo 4-6-1,Komaba,Meguro,Tokyo,153-8505,Japan
国际会议
上海
英文
1-7
2012-08-26（万方平台首次上网日期，不代表论文的发表时间）