Minimizing the aerodynamic drag and the lift of the train coach remains a key issue for high-speed trains. With the development of computing technology and computational fluid dynamics (CFD) in the engineering field, CFD has been successfully applied to the design process of high-speed trains. However, developing a new streamlined shape for high-speed trains with excellent aerodynamic performan...

Passengers of high-speed trains might be exposed to relatively high sound levels, compared to those inside conventional trains. In particular, sound levels inside Chinese high-speed train compartments may reach values as high as 80 dBA. Because traveling times are usually substantial in China, a wider variety of social activities occurrs inside the trains and more noise related problems for pas...

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. ...