Abstract This paper studies an inspection method to measure the long-wave track irregularities using signals of IMU (Inertial Measurement Unit) and Laser & Camera installed on a bogie, which is implemented in comprehensive trains. To reduce influence random noise vehicle vibration, mechanical structure optimized; spatial-dependent change "two-point chord" observed by high-precision FOC (Fib...

Abstract Continuous welded rail (CWR) track has great advantages of low-cost maintenance, environmental influence, and ride comfort. However, the CWR is subjected to longitudinal stresses in rails due temperature influence as well inhomogeneous stress accumulation train loadings. The cause accelerated lateral irregularity that without timely maintenance can buckling. present paper a method stab...

The vibrations produced by trains include two parts which are deterministic and random vibrations. Due to variation of dynamic loads and patterns of load-time, the random vibration of moving train is one of the most important issues in the field of railway engineering. One of the important sources in producing the train vibrations is rail roughness and irregularities. In this paper, responses o...

In this work, a monorail vehicle-bridge coupling (VBC) model capable of accurately considering curve alignment and superelevation is established based on curvilinear moving coordinate system, to study the VBC vibration straddle curved girder bridge relevant factors influencing VBC. While taking Chongqing Jiao Xin line as an example, program compiled using Fortran, where reliability algorithm ve...