Dynamic train–track interaction at high vehicle speeds—Modelling of wheelset dynamics and wheel rotation

Vertical dynamic train-track interaction at high vehicle speeds is investigated in a frequency range from about 20 Hz to 2.5 kHz. The inertial effects due to wheel rotation are accounted for in the vehicle model by implementing a structural dynamics model of a rotating wheelset. Calculated wheel-rail contact forces using the flexible, rotating wheelset model are compared with contact forces based on rigid, non-rotating models. For a validation of the train-track interaction model, calculated contact forces are compared with contact forces measured using an instrumented wheelset. When the system is excited at a frequency where two different wheelset mode shapes, due to the wheel rotation, have coinciding resonance frequencies, significant differences are found in the contact forces calculated with the rotating and non-rotating wheelset models. Further, the use of a flexible, rotating wheelset model is recommended for load cases leading to large magnitude contact force components in the high-frequency range (above 1.5 kHz). In particular, the influence of the radial wheel eigenmodes with two or three nodal diameters is significant. (C) 2011 Elsevier Ltd. All rights reserved.

[1]  Klaus Knothe,et al.  Modelling of Railway Track and Vehicle/Track Interaction at High Frequencies , 1993 .

[2]  Juan Fayos,et al.  High frequency railway vehicle-track dynamics through flexible rotating wheelsets , 2008 .

[3]  Jens C. O. Nielsen,et al.  Influence of Short-Pitch Wheel/Rail Corrugation on Rolling Contact Fatigue of Railway Wheels , 2005 .

[4]  T. Meinders.  Modeling of a Railway Wheelset as a Rotating Elastic Multibody System , 1998 .

[5]  Francisco D. Denia,et al.  An eulerian coordinate-based method for analysing the structural vibrations of a solid of revolution rotating about its main axis , 2007 .

[6]  Roger Lundén,et al.  High-frequency vertical wheel–rail contact forces—Field measurements and influence of track irregularities , 2008 .

[7]  Ahmed A. Shabana,et al.  Application of multibody methodology to rotating shaft problems , 1997 .

[8]  Giancarlo Genta,et al.  Dynamics of Rotating Systems , 2005 .

[9]  S. L. Grassie,et al.  MEASUREMENT OF LONGITUDINAL RAIL IRREGULARITIES AND CRITERIA FOR ACCEPTABLE GRINDING , 1999 .

[10]  David Thompson,et al.  Investigation of the dynamic contact filter effect in vertical wheel/rail interaction using a 2D and a 3D non-Hertzian contact model , 2011 .

[11]  David Thompson,et al.  Wheel-rail Noise Generation, Part V: Inclusion Of Wheel Rotation , 1993 .

[12]  J. K. Hedrick,et al.  A Comparison of Alternative Creep Force Models for Rail Vehicle Dynamic Analysis , 1983 .

[13]  Karl Popp,et al.  Interaction of elastic wheelsets and elastic rails: modelling and simulation , 2006 .

[14]  David Thompson.  Railway Noise and Vibration , 2009 .

[15]  J. Nielsen.  High-frequency vertical wheel-rail contact forces-Validation of a prediction model by field testing , 2008 .

[16]  Simon Iwnicki,et al.  An investigation of rail corrugation with a coupled, flexible, rotating wheelset, a flexible track and a non-steady contact model , 2009 .

[17]  Jens C. O. Nielsen,et al.  High-Frequency Vertical Wheel-Rail Contact Forces at High Vehicle Speeds-The Influence of Wheel Rotation , 2010 .

[18]  Ahmed A. Shabana,et al.  Dynamics of Multibody Systems , 2020 .

[19]  Karl Popp,et al.  System dynamics and long-term behaviour of railway vehicles, track and subgrade: report on the DFG Priority Programme in Germany and subsequent research , 2005 .

[20]  Jens C. O. Nielsen,et al.  VERTICAL DYNAMIC INTERACTION BETWEEN TRAIN AND TRACK INFLUENCE OF WHEEL AND TRACK IMPERFECTIONS , 1995 .

[21]  A. Johansson,et al.  Rail corrugation growth : Influence of powered wheelsets with wheel tread irregularities , 2007 .

[22]  Nizar Chaar.  Wheelset Structural Flexibility and Track Flexibility in Vehicle-Track Dynamic Interaction , 2007 .