Vibration characteristics of defective axle box bearings in high-speed trains under track irregularity excitation
Min Wang,
Shaopu Yang,
Yongqiang Liu
et al.
Abstract:Track irregularity is a type of excitation source for the wheel-rail system, and it is also the major cause of vibration and wheel-rail forces on the axle box bearings of vehicles, and it is commonly found on in-service lines. Therefore, this paper mainly focuses on the dynamic characteristics of high-speed train axle box bearings under track irregularity. Firstly, a nonlinear system containing a faulty double-row tapered roller bearings is established, the obtained equations of motion are solved numerically u… Show more
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