CAJ | 학술논문

基于铁路客车轴箱弹性系统多界面模拟平台，建立轴箱轴承弹性脂润滑模型，研究了不同运行工况下轴箱轴承的润滑性能及规律。结果表明：在给定工况条件下，铁路客车轴箱及轮轴变形会导致2套轴承径向接触载荷分布不均；在各影响因素中，轴挠曲对轴承润滑的影响较小，运行速度对润滑性能影响较大；随着载荷的增加，最小油膜厚度减小，最大润滑接触应力增大，可能导致边界润滑状态。
기우철로객차축상탄성계통다계면모의평태，건립축상축승탄성지윤활모형，연구료불동운행공황하축상축승적윤활성능급규률。결과표명：재급정공황조건하，철로객차축상급륜축변형회도치2투축승경향접촉재하분포불균；재각영향인소중，축뇨곡대축승윤활적영향교소，운행속도대윤활성능영향교대；수착재하적증가，최소유막후도감소，최대윤활접촉응력증대，가능도치변계윤활상태。
The elastic grease lubricated model for axle box bearing is built based on elastic system multi-interface sim-ulation platform for axle box of passenger train,and the lubricating property and rule of axle box bearing are investiga-ted under different operating conditions.The results show that the non-uniform of radial loads of two bearings could be caused by deformation of axle box and axle of passenger train under the given operating condition.Among the various influential factors,the shaft deflection has little influence on lubrication of bearing,and the effect of operating speed on lubricating performance is larger.The minimum oil film thickness decreases and the maximum lubrication contact pres-sure increases with the increase of load,which easily lead to boundary lubrication regime.