Wheel – Rail Contact theory
The influence of rail lubrication on wear and energy dissipation in wheel/rail contact
... Simpack Rail and Gensys use a similar user interface and they are currently widely ...dynamics theory is used to develop the equations of motion for the system and these are processed by a solver which ...
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Dynamics Analysis of Wheel Rail Contact Using FEA
... A rail wheel contact mechanism has been a keen interest area for railway ...interacting wheel and rail profile topology. A standard rail UIC 60 and standard wheel profile, ...
10
Analytical Approach to Vibration Analysis Of the Wheel-rail contact
... Wheel/rail contact simulation is one of the most complicated problems in the modeling of railway ...The wheel/rail interaction plays a unique role in rail vehicle ...the ...
10
The Influence of Wheel/Rail Contact Conditions on the Microstructure and Hardness of Railway Wheels
... measured rail profile pairs applied according to curve radius bands • 9 wheel profile pairs measured from the vehicles in varying wear states Outputs from the simulations include the position and shape of ...
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Wheel–rail contact: experimental study of the creep forces–creepage relationships
... the wheel-rail contact ...longitudinal contact force as a function of the longitudinal creepage are obtained and the divergences with respect to Kalker’s Simplified Theory are ...
9
Non-hertzian contact model in wheel/rail or vehicle/track system
... whel-rail contact analysis is based on the Hertz theory. The contact between the rail and the wheel is then nonlinear and is massless (Figure ...The contact stiffness ...
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Wheel–rail contact formulation for analyzing the lateral train–structure dynamic interaction
... A wheel-rail contact formulation for analyzing the train-structure nonlinear interaction that takes into account the wheel and rail geometry is ...the contact forces as external ...
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Contact Analysis of the Two Dimensional Wheel-Rail Based on Finite Element Method
... Abstract: Wheel-rail contact mechanics is one of the fundamental areas for studying wheel-rail relationship, therefore, the study of wheel/rail contact is of great ...
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Squat defects and rolling contact fatigue clusters - Numerical investigations of rail and wheel deterioration mechanisms
... of wheel–rail contact The ability to accurately resolve wheel–rail contact stresses is of great importance in a rolling contact fatigue assessment, especially in cases ...
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Reducing the Diameter of Freight Vehicle Wheels – The Suitability of Q/D as a Control for Wheel Rail Contact Stress
... scrap wheel diameters under each vehicle in the laden condition and the distribution calculated according to fleet ...in theory, nearly 50% of the annual wheelset miles for freight wagons could occur at Q/D ...
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The Impact of Structural Deformations of Wheelset and Rail on Wheel-Rail Contact
... The distribution of the density of the frictional power, which is important for the wear, is also affected distinctly. In the case of hunting, the structural dynamics have a no- ticeable impact on the running behaviour ...
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Frictional contact FE analysis in a railway wheel-rail contact
... As it can be seen in Figs. 9-11. the maximum of the equiva- lent von Mises stress and the principal shear stress occurs under the wheel tread in 2-4 mm depth. In the second part of our analysis we examined the ...
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Modelling the Dynamic Behaviour of the Wheel Rail Interface by Using a Novel 3D Wheel Rail Contact Model
... of rail-wheel interface including precise values for wheel-rail contact ...3-D wheel-rail contact model which is used for dynamic simulation of a suspended wheelset ...
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Measuring wheel/rail contact stresses using ultrasound
... the contact has been modelled statically and scanned using a single ...the contact between the wheel and the rail is large with gradual pressure changes, hence the effects of the spot size are ...
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Wheel/Rail Contact Isolation Due to Track Contamination
... the wheel/rail contact ...the wheel/rail contact in this manner could isolate the wheel from the track inhibiting the detection of a ...
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Experimental characterization of wheel-rail contact patch evolution
... damaged wheel-rail contacts. The response of a wheel/rail interface to an ultrasonic wave can be modeled as a ...the contact pressure is high the interface is very stiff, with few air ...
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Contact Force Estimation in the Railway Vehicle Wheel Rail Interface
... the wheel-rail ...the wheel tread and rail head, predict the formation of rolling contact fatigue, and identify any areas of low adhesion present on the ...nonlinear contact ...
7
Contact Force Estimation in the Railway Vehicle Wheel-Rail Interface
... the wheel-rail ...the wheel tread and rail head, predict the formation of rolling contact fatigue, and identify any areas of low adhesion present on the ...nonlinear contact ...
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Contact force estimation in the railway vehicle wheel-rail interface
... the wheel-rail ...the wheel tread and rail head, predict the formation of rolling contact fatigue, and identify any areas of low adhesion present on the ...nonlinear contact ...
7
Effect of the wheel/rail contact angle and the direction of the saturated creep force on rail corrugation
... wheelset-track contact model of Section ...the contact angles can be changed ...Each rail has 105280 nodes and 71010 ...the rail mass is 60 kg/m, the total length is 60 m and it is assumed ...
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