Analysis of Contact Load Characteristics of Outer Ring Raceway of High-Speed Train under Excitations
In order to improve the understanding of the contact load characteristics of the outer raceway of high-speed trains,a vehicle-rail simulation model consisting of bearing parameters is established,the role of different parts of the bearing relationship is discussed in depth,the contact load parameters of the roller raceway are calculated,and the contact load of the roller raceway formed by the track excitation and each speed state is tested according to the statistical characteristic index.The results of the study show that the average value of the contact load without excitation located in the region between 0 and nearby is slightly higher than the result with excitation,and the average value of the contact load under the condition of excitation is higher than that without excitation.The trend of the mean values of contact loads in the roller and outer ring regions at different speed levels is similar and does not produce a significant difference.This study lays a certain theoretical foundation for the subsequent optimisation of vibration damping equipment.
rolling stockaxlebox bearingsvibration accelerationcontact loadsexcitation
NETL
NSTL
万方数据
