The thesis researched the wheelset and axle-box fatigue strength of CRH_2 trailer and expected that the results could be valuable for establishing the standards of high-speed EMU.
The dynamic model of a 2b0 locomotive for export is built with software SIMPACK to analyze the influence of longitudinal position of the locating node for tumbler axle-box on locomotive dynamics.
The axles run in two-row self aligning ball bearings on the gear side, and a standard sealed ball race on the other end in the sprung axlebox, both 12mm bore.