Study On The Vibration Synchronization Of The Rolling Stock Bogie And Carbody

As our train operating speed of the increasingly high demand, high-speed trains to the vehicle speed after the designer put forward new demands. Dynamic performance of high-speed train is a very worthy of further research, if the high-speed train vibration sharp instability, not only affects the ride comfort of passengers, but also may derail and other security problems. Small taper tread Although high-speed trains can be increased hunting threshold speed of the vehicle, but in the actual operation has also brought new problems, the vehicle speed is not high, in the longer vehicle speed region occurs sharply shaking, severe affect the stability of the vehicle motion system. In this paper, coupled vibration of mechanical system vibrations applied theoretical knowledge synchronized high-speed train body and bogie analysis, from the perspective of frequency capture a hunting vehicle vibration characteristics. The main work:(1) describes the development of domestic high-speed railway, as well as increasing vehicle operating speed, vibration problems caused by, and modeling theoretical knowledge and vehicle stability system of the vehicle movement dynamics are reviewed.(2) detail the derivation of synchronization conditions and stability conditions of vibration of the mechanical system synchronization theory and concepts, as well as dual-exciter vibration machine; cited the presence of vibrations in the vehicle system synchronization.(3) the establishment linear lateral movement of the vehicle system differential equations, and its programming time and frequency domain solver, through the analysis of changes at different speed grades bogie hunting movement frequency vibration on the bogie and the vehicle body simultaneously the study.(4) the establishment of a non-linear simulation model of vehicle systems, time domain by lateral movement of the vehicle system simulation, and post-processing of the simulation results, from the perspective of bogie hunting frequency of exercise, a study of the hunting vehicle vibration system synchronization. And analyzes the secondary suspension system parameters on a hunting vehicle synchronization effects of vibration.