Modelling railway curve squeal poses a challenge since the phenomenon is non-linear, transient and complex. This work focusses on the transient effects of varying contact parameters on curve squeal. A previously developed high-frequency tool for the simulation of curve squeal in the time domain during quasi-static curving is extended to account for transient curving and connected to a software for the low-frequency vehicle dynamics. An application of the model demonstrates that time-varying contact parameters such as contact position, lateral creepage, and friction coefficient can lead to an on- and offset of squeal. The history of the wheel/rail dynamics can also have an influence on the occurrence of squeal and the selection of the squeal frequency.
Transient Modelling of Curve Squeal Considering Varying Contact Conditions
Lect.Notes Mechanical Engineering
International Workshop on Railway Noise ; 2022 ; Shanghai, China December 07, 2022 - December 09, 2022
Noise and Vibration Mitigation for Rail Transportation Systems ; Chapter : 46 ; 491-499
2024-02-24
9 pages
Article/Chapter (Book)
Electronic Resource
English
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