Wheel/rail contact simulation is one of the most complicated problems in the modeling of railway vehicles. The wheel/rail interaction plays a unique role in rail vehicle dynamics. In this paper, the dynamic response of the wheel on irregular rail track is analyzed with analytical approach using the method of Multiple Scales (MMS). The Hertzian contact theory is used to obtain the relationshi...

Adhesion level for the proper running of rail wheelset on track has remained a significant problem for researchers in detecting slippage to avoid accidents. In this paper, the slippage of rail wheels has been observed applying forward and lateral motions to slip velocity and torsion motion. The longitudinal and lateral forces behavior is watched with respect to traction force to note correlatio...

Abstract In this paper, a new method is proposed to identify the frequency and amplitude of weak signals by using non-smooth system. The variable scale limit system smooth discontinuous (SD) oscillator without considering phase adopted as identification By stochastic subharmonic-like Melnikov method, an analytical expression chaotic threshold under Gaussian white noise given. Based on diagram P...

Ballast mats are considered as an effective solution for reducing vehicle-induced vibrations. However, the research on vibration characteristics of each part ballasted track with a ballast mat is limited. In this study, reduction effects evaluated by numerical and experimental analysis using wheelset drop tests. A three-dimensional model consisting wheel, contact between them built rigid–flexib...