Friction-Induced Vibration of a Railway Wheelset-Track System and Its Effect on Rail Corrugation
In the present study, the effect of the radius of railway curved tracks on the slip of a wheel on a rail is studied. A 3D finite-element model of a wheelset-track system is established when the creep force between the wheel and rail is saturated. The occurrence propensity of the self-excited vibrati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/8/2/18 |
| Summary: | In the present study, the effect of the radius of railway curved tracks on the slip of a wheel on a rail is studied. A 3D finite-element model of a wheelset-track system is established when the creep force between the wheel and rail is saturated. The occurrence propensity of the self-excited vibration of the wheelset-track system is predicted. It is concluded that the radius of curved tracks has a strong effect on the slip of wheels on rails. In the tightly curved tracks, the slip of the wheel of the leading wheelset on the rail always occurs. The wheelset-track system has a strong occurrence propensity for unstable vibrations on the tightly curved tracks. The accuracy of the rail corrugation prediction based on the unstable vibrations of wheelset-track systems is determined to be 85−90% or higher. |
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| ISSN: | 2075-4442 |