Recent decades have witnessed the fast development of high-speed railway systems in many countries, which have significantly shortened the travel time between distant cities. Accompanied with this convenience is the challenge for cell phone vendors to provide broadband Internet access for passengers, particularly considering the fast changing channel conditions in high-speed trains and the limi...

Abstract In this study, a dynamic model for the bearing rotor system of high-speed train under variable speed conditions is established. contrast to previous studies, contact stress simplified in proposed and compensation balance excitation caused by mass eccentricity considered. The angle iteration method used overcome challenge posed inability determine roller space position during rotation. ...

We consider the dynamic headway control problem under no-deadlock and no-collision constraints. Different speed limits are applied to different railway segments and junctions according to local geographic conditions. A mathematical programming formulation is given under the consideration of the trains’ dynamics. Then a heuristic rule for train movement is proposed to reduce delay and guarantees...

Useful lifetime evaluation of railpads were very important in design procedure to assure the safety and reliability. It is, therefore, necessary to establish a suitable criterion for the replacement period of rail pads. In this study, we performed properties and accelerated heat aging tests of rail pads considering degradation factors and all environmental conditions including operation, and th...