An advanced method using progressive concept of geometrical correspondence is applied to create a new wheel/rail contact model based on virtual penetration theory. The geometry and contact mechanism are solved simultaneously because of the independency in a defined correspondence. The model takes the penetrated profiles of wheel and rail and also associated creeps as inputs, and produces driving contact forces as output. The advantage of this model is that it doesn’t require pretabulation of rigid contact situation. The method allows calculating flexible, non-elliptical, multiple contact patches during integration of the model. Consequently the rails with substructures can vibrate separately from the vehicle in a flexible wheel/rail contact model. The simulation results indicate that this method can be used in various rail vehicle dynamic problems.
- Rail Transportation Division
Flexible Wheel/Rail Contact Model for Railway Vehicle Dynamics Without Pre-Calculation
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Durali, M, Salehi, SH, & Jalili, MM. "Flexible Wheel/Rail Contact Model for Railway Vehicle Dynamics Without Pre-Calculation." Proceedings of the ASME 2007 Rail Transportation Division Fall Technical Conference. ASME 2007 Rail Transportation Division Fall Technical Conference. Chicago, Illinois, USA. September 11–12, 2007. pp. 87-93. ASME. https://doi.org/10.1115/RTDF2007-46021
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