TY - GEN
T1 - A Non-Linear Wheelset Model to Predict Derailment
AU - Haque, Imtiaz
AU - McGirt, Patrick
AU - Nagurka, Mark L.
N1 - Publisher Copyright:
© 1996 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1996/1/1
Y1 - 1996/1/1
N2 - The performance of a rail vehicle is a direct function of the ability of its wheelsets to negotiate the track. This paper presents the results from a detailed dynamic simulation study of wheelset motions with special emphasis on safety-related behavior. The wheelset is assumed to maintain continuous wheel-rail contact as it traverses smooth track that may be tangent or curved, and rigid or flexible. The model accounts for nonlinearities due to wheel-rail profile geometry and friction (creep) force and the longitudinal translation of the contact patch as a function of wheelset yaw angle. The results demonstrate non-linear features, such as limit cycles, and extremes of behavior including wheel-lift, and wheel-climb. The model has also been exercised to generate steady-state force and moment characteristics.
AB - The performance of a rail vehicle is a direct function of the ability of its wheelsets to negotiate the track. This paper presents the results from a detailed dynamic simulation study of wheelset motions with special emphasis on safety-related behavior. The wheelset is assumed to maintain continuous wheel-rail contact as it traverses smooth track that may be tangent or curved, and rigid or flexible. The model accounts for nonlinearities due to wheel-rail profile geometry and friction (creep) force and the longitudinal translation of the contact patch as a function of wheelset yaw angle. The results demonstrate non-linear features, such as limit cycles, and extremes of behavior including wheel-lift, and wheel-climb. The model has also been exercised to generate steady-state force and moment characteristics.
UR - https://www.scopus.com/pages/publications/85169464790
U2 - 10.1115/IMECE1996-0330
DO - 10.1115/IMECE1996-0330
M3 - Conference contribution
AN - SCOPUS:85169464790
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 141
EP - 148
BT - Dynamic Systems and Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1996 International Mechanical Engineering Congress and Exposition, IMECE 1996
Y2 - 17 November 1996 through 22 November 1996
ER -