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- W2937269098 abstract "In the paper, the frictional self-excited vibration of a wheelset-track system caused by the saturated wheel-rail creep force is proposed as a possible mechanism for wheel polygonal wear of high-speed trains. The wheelset-track system model is established, which consists of a wheelset, two rails, some sleepers and a slab. The stability of the wheelset-track system is studied through the complex eigenvalue method. Results show that the unstable vibration frequency of the wheelset-track system is f= 495.01 Hz, which can lead to the 18th-order wheel polygonal wear. This simulation result is approximately consistent with the field measurement result. Furthermore, the parameters sensitivity analysis shows that increasing the vertical damping of the fastener to a certain extent can suppress or eliminate wheel polygonal wear. In addition, a transient dynamic analysis of the wheelset-track system with the wheelset eccentricity is conducted. Results indicate that the wheelset eccentricity is an important factor affecting wheel polygonal wear." @default.
- W2937269098 created "2019-04-25" @default.
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- W2937269098 date "2019-04-01" @default.
- W2937269098 modified "2023-09-23" @default.
- W2937269098 title "Study on the mechanism for the wheel polygonal wear of high-speed trains in terms of the frictional self-excited vibration theory" @default.
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- W2937269098 doi "https://doi.org/10.1016/j.wear.2019.01.020" @default.
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