If a wheel rolling over a rail transmits a tangential traction, frictional microslip occurs in part of the contact area, resulting in energy dissipation and localized wear. If the applied forces oscillate in time, the resulting wear will be non-uniform, resulting in ‘corrugations’ that can grow with progressive passes, depending on the dynamics of the overall system. In this paper, a linear per...

Most of the models used f tionary theories. In such t on the conditions applied whose validity lies in the r the conditions simulated stationary theorieswhen to high-frequency normal effect of the temporal his to investigate the influenc methodology for estimati Themethod implements a tic model are taken into ac in the proposed method.

Estimation of corrugation amplitude is an important but difficult point for indirect methods, to advance related research, method based on wavelet packet decomposition (WPD) and energy level wheel-rail noise developed. For this purpose, firstly, numerical models are proposed calculate under various statuses. Next, the WPD conducted noise, levels relevant nodes used as evaluation indicators ampl...

During the dynamic measurement of chord-based rail corrugation, with interferences curve and train snaking movement, it is hard to ensure that measuring points on surface can trace railhead centerline well whole time. This introduces position deviations system, leads results cannot reflect true irregularity state. To solve problem, a deviation method based assistance bi-linear laser proposed in...