Wheel-Rail Contact
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
... the wheel-rail contact with a 3D FE model, for a simplified ...the contact pressure distribution, the surface shear stress distribution and adhesion-slip area within the contact ...to ...
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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
... 2. Wheel/Rail Contact Loading and Geometry Figure 7a shows the single contact from the worn specimens, with Figure 7b showing the twin contact also ...twin contact patch occurred ...
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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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Dynamics Analysis of Wheel Rail Contact Using FEA
... the contact patch, and the distribution of the stresses within ...of wheel-rail contact can be divided into two parts: a geometric (kinematic) part, which aims at the detection of the ...
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Experimental characterization of wheel-rail contact patch evolution
... machined wheel and rail surfaces are ...the contact patch varies with respect to both the wheel and the ...the wheel and rail ...of contact. This in turn will change the ...
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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 ...
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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 ...
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The Influence of Wheel/Rail Contact Conditions on the Microstructure and Hardness of Railway Wheels
... rolling contact fatigue damage is influenced by the properties of the wheel ...composition, wheel manufacturing process, and thermal and mechanical loading during ...the wheel tread. This ...
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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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Wheel/Rail Contact Tribology: Characterising Low Adhesion Mechanisms and Friction Management Products
... the rail could be prevented by treating rails with commercially available hydrophobic ...disc wheel/rail contact simulation were compared with dry and pure water ...clean rail may be ...
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Preliminary Results on Dynamic Analysis of a New Test Rig for Wheel-Rail Contact Studies
... on wheel let it to simulate frictional rolling condition in the presence of normal and tangential ...entire wheel passage. The results of the wheel–rail contact forces in three FE ...
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Simulation of rail roughness growth on small radius curves using a non-Hertzian and non-steady wheel–rail contact model
... of rail roughness (corrugation) on small radius curves is ...short-wavelength rail irregularities are accounted ...the wheel–rail contact model on rail wear is ...a ...
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The influence of rail lubrication on wear and energy dissipation in wheel/rail contact
... 3.4.1 Multibody simulation (MBS) A large number of computer codes have been developed by railway organizations to assist in the design of suspensions and the optimization of track and vehicles. The early packages used ...
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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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The Influence of Wheel/Rail Contact Conditions on the Microstructure and Hardness of Railway Wheels
... DMU wheel was a region of ‘white etching layer’, in the centre of the running band (marked ‘W’ on Figure ...prolonged wheel-spin incident, which was recorded by the on-train systems during low adhesion ...
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Using Tribo-Chemistry Analysis to Understand Low Adhesion in the Wheel-Rail Contact
... tackle this problem by adapting a portable X-ray diffraction fluorescence (XRDF) spectrometer so that it can be used on the railhead. The results were positive, with spectroscopic measurements showing how the oxide ...
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Multiple model based real time estimation of wheel rail contact conditions
... The delivery of traction and braking is achieved through longitudinal creep. Lateral creep is usually minimal compared to longitudinal creep, unless a vehicle is operatin[r] ...
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The Low Adhesion Problem due to Leaf Contamination in the Wheel/Rail Contact: Bonding and Low Adhesion Mechanisms
... the contact area produce very low friction coefficients, below ...the rail, a laboratory-based model and a field-based model were developed based on previous ...
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