[PDF] Top 20 Creep force estimation at the wheel rail interface

... IAVSD2011 0119%5b2%5d pdf University of Huddersfield Repository Ward, C P , Goodall, Roger M and Dixon, R Creep force estimation at the wheel­rail interface Original Citation Ward, C P , Goodall, Roge[.] ... See full document

... the creep force estimation as the friction level ...the creep force saturation becoming more prominent as the adhesion level ...the creep force ... See full document

... the wheel-rail contact problem in the dynamic behaviour of railway vehicles has led to the publications of different mathematical developments that tackle this problem mainly from a purely theoretical point ... See full document

... railway wheel profiles to reflect the importance of various factors including the maximum values of contact stress, lateral force on the track, derailment quotient and total wear and ride ...railway ... See full document

... the rail at the wheel contact patch is sufficient to raise the rail to the eutectoid temperature of the ...the rail near surface region from this temperature as the contact area advances ... See full document

... crown wheel in contact point when the wheels move toward outside of curvature, the radius of the outer wheel is relatively higher that it's neighbor wheel, and this difference in radius leads to ... See full document

... for wheel-rail interface using the wheel-rail profile ...3-dimensional wheel-rail contact model was developed to model the dynamics of the wheel-rail contact ... See full document

... worn wheel after 20,088 km distance covered by the ...the wheel wears out further, the duration of its appearance ...worn wheel profile after 100,440 km, the secondary contact patch appears for a ... See full document

... includes wheel-rail contact analysis based on Rolling contact ...the rail head on straight ...of rail replacements were found to be due to problems caused by rolling contact fatigue and ... See full document

... the wheel-rail interface the classical FASTSIM algorithm extended with variable adhesion limit as a function of contact area is used for tangential contact force ...the wheel profile on ... See full document

... P8 wheel profiles and BS 113A rail profile are applied as ...and rail are obtained by using the piecewise cubic interpolation polynomial and the calculated lateral displacement, roll angle and yaw ... See full document

... initial wheel and rail profiles, a wear sequence reproducing the vehicle mission profile is simulated using the multi-body vehicle ...to wheel profiles produced by the wear sequence is computed using ... See full document

... Each rail has 105280 nodes and 71010 ...the rail mass is 60 kg/m, the total length is 60 m and it is assumed that the rail ends are respectively ...The wheel of nominal diameter of 840 mm with ... See full document

... By performing a theoretical calibration, the best possible results of the developed transducer under ideal conditions were shown. The experimental calibration showed higher de- viation to the reference, but for measuring ... See full document

... of wheel and rail profile optimisation is briefly discussed in this ...designing wheel and rail profiles for railway vehicles ...existing wheel profiles are chosen as parents, and genes ... See full document

... A wheel, together with an axle overcomes friction by facilitating motion by ...the wheel about its axis, either by way of gravity, or by application of another external ... See full document

... the wheel-rail contact is analysed by frequency and phase ...special rail and any difference between emitted and received frequencies will point out a wheel tread ...Also wheel flat ... See full document

... [Figure 2-8] also shows another trend which can also be seen on the friction circle [Figure 2-5] where the slip angle approaches zero as the longitudinal forces increase to maximum limit[r] ... See full document

... worn wheel/rail specimens give a different result when compared to the un-used ...the wheel and rail wear in use, leaving a smooth polished surface on both ...the wheel and rail ... See full document

... The disc machine test is severe. It is thought that sand is more easily entrained into the contact than it would be in an actual wheel/rail contact as the nozzle is positioned much closer to the contact ... See full document