Low-Frequency Carbody Sway Modelling Based on Low Wheel-Rail Contact Conicity Analysis
Joint Authors
Zeng, Jing
Shi, Huailong
Wu, Yi
Qu, Sheng
Wang, Qunsheng
Wei, Lai
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-21
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Abstract EN
Low-frequency carbody swaying on China’s high-speed trains is not only an impediment to ride comfort but it may also be an operational risk under some extreme situations.
To study the mechanism and mitigate the carbody swaying problem for high-speed trains, a multibody dynamics model was established based on both linear and nonlinear analyses.
Whilst it is generally assumed that carbody swaying is predominantly caused by carbody hunting motion, the results in this paper has shown that, under certain boundary conditions, bogie-hunting motion can also lead to low-frequency carbody swaying.
This low-frequency swaying phenomenon was also found to be caused by the excessively low wheel-rail contact or mismatched suspension parameters.
Parametric optimization analysis was accordingly conducted from the perspective of the wheel-rail contact relationship and the suspension system.
The analysis indicated that although optimizing the suspension parameters can meet the requirement of vehicle stability, bogie's vibration worsen when the wheel profiles wear over time.
Overall, while rail reprofiling was found to be one of the fundamental solutions to mitigate carbody swaying, it is cost prohibitive for most routine operational applications.
Thus, for economic considerations and the fact that low wheel-rail contact conicity is also a contributing factor to carbody swaying, vehicles with worn wheels can also be operated on the rail line, which was successfully verified by the field data presented in this paper.
American Psychological Association (APA)
Wu, Yi& Zeng, Jing& Qu, Sheng& Shi, Huailong& Wang, Qunsheng& Wei, Lai. 2020. Low-Frequency Carbody Sway Modelling Based on Low Wheel-Rail Contact Conicity Analysis. Shock and Vibration،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1210214
Modern Language Association (MLA)
Wu, Yi…[et al.]. Low-Frequency Carbody Sway Modelling Based on Low Wheel-Rail Contact Conicity Analysis. Shock and Vibration No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1210214
American Medical Association (AMA)
Wu, Yi& Zeng, Jing& Qu, Sheng& Shi, Huailong& Wang, Qunsheng& Wei, Lai. Low-Frequency Carbody Sway Modelling Based on Low Wheel-Rail Contact Conicity Analysis. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1210214
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210214