Analysis of the Gyroscopic Stability of the Wheelset
Joint Authors
Dong, Hao
Zeng, Jing
Wu, Liang
Dai, Huanyun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-02
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The wheelset of the railway vehicle is a rotor which itself has gyroscopic effect.
Nowadays, the rolling stock has entered the era of high speed, and the wheel rotates faster than in the past.
The influence of gyroscopic effect on stability is little understood.
Metelitsyn’s inequality theorem for asymptotic stability has some advantages to analyze this problem although this method is sufficient but not necessary condition.
Based on its deduction, the extremal eigenvalues criterion and compared with Routh-Hurwitz criterion, both are applied to solve the critical value of speed.
Further, according to the instability criterion, gyroscopic contributory ratio is derived to study how the role the gyroscopic effect plays in stability.
Moreover, the effect of gyroscopic matrix or gyroscopic terms pitch rotor inertia Iy on stability coefficient is investigated.
The results show that Iy is a key factor to wheelset gyroscopic stability.
The gyroscopic effect becomes significant, and the stability increases with increasing Iy.
The results also indicate that the critical value of speed solved by Metelitsyn theorem is more conservative than the one it solved by Hurwitz criterion, which proves that Metelitsyn inequality theorem for asymptotic stability is a sufficient but not necessary condition in the way of attaining the numerical simulation result.
Finally, the test for the influence of gyroscopic effect on stability needs to be further studied.
American Psychological Association (APA)
Dong, Hao& Zeng, Jing& Wu, Liang& Dai, Huanyun. 2014. Analysis of the Gyroscopic Stability of the Wheelset. Shock and Vibration،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1047855
Modern Language Association (MLA)
Dong, Hao…[et al.]. Analysis of the Gyroscopic Stability of the Wheelset. Shock and Vibration No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1047855
American Medical Association (AMA)
Dong, Hao& Zeng, Jing& Wu, Liang& Dai, Huanyun. Analysis of the Gyroscopic Stability of the Wheelset. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1047855
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047855