Railways are one of the most important means transportation, allowing people and goods to move quickly, environmentally beneficially, efficiently over long distances. To ensure safe reliable operations, regular condition-based assessments trains track paramount importance. Drive-by methodologies, which utilize data collected by onboard monitoring systems as vehicle travels track, have gained po...

In predicting rolling noise froma railway wheelset, some assumptionsare usually required to make the calculations less complicated and more efficient.In this study, effects of modelling assumptions on prediction ofsound power radiated from a high-speed train wheelset are investigated by using finite element boundary methods.Use is made axi-symmetry allow solution be obtained in terms Fourier se...

The dynamics of a railway vehicle are driven by the geometry and conditions at the wheel-rail contact. Typically the condition and shape of the wheel and rail are monitored separately and off-line. The work presented here is part of ongoing research into on-line modelbased estimation of parameters in the wheel-rail contact dynamics. This paper outlines a practical approach to estimating a nonli...

To investigate the influence of structural deformation wheelset and track on rail wear in longitudinal lateral directions, a prediction model is established that can calculate three-dimensional distribution wear. The difference between multi-rigid-body dynamic rigid-flexible coupled model, which considers flexibility track, compared terms results show distributions predicted by two models are r...