Abstract
AbstractAlthough Independently Rotating Wheels (IRW) meet the low-floor height requirements of the Light Rail Transit systems, its self-centering and self-steering moments resulting from the longitudinal creep forces are small to maneuver sharp curves due to the lack of a rigid rotational speed coupling between its wheels. While the Active Steering control of IRWs can potentially achieve perfect steering with satisfactory running stability, in the present study a simpler passive stabilization control method using a Gyroscopic damper is proposed to realise automatic sharp curve steering and high-speed stability to improve the dynamic performance of a railway vehicle running with IRWs. The present study discusses the stabilization effect of the Gyroscopic damper in three basic configurations of IRWs, namely the conventional IRW, the Negative Tread Conicity Independently Rotating Wheels (NTCIRW) and the EEF (Einzelrad-Einzel Fahrwerk) bogie. In this study, the theoretical investigation and numerical simulations with a full-scale railway vehicle is done which shows the effectiveness of the proposed gyroscopic damper.KeywordsIndependently Rotating Wheel (IRW)Negative Tread Conicity Independently Rotating Wheel (NTCIRW)EEF bogieGyroscopic damper
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