Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship

Joint Authors

Dai, Huanyun
Wei, Lai
Shi, Huailong
Wang, Qunsheng
Shi, Yixuan

Source

Shock and Vibration

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-11-16

Country of Publication

Egypt

No. of Pages

15

Main Subjects

Civil Engineering

Abstract EN

For the worn state of the wheel, metro vehicles often suffer a serious carbody swaying issue, which causes the lateral stability of the vehicle to exceed the limit and affects the ride comfort.

An experimental test was carried out on this investigation to study the carbody swaying of the metro vehicle.

The field results show that the vehicle system vibrates at around 2.5 Hz in the lateral direction, which leads to the low-frequency swaying on the carbody.

In order to explore the formation mechanism of the carbody low-frequency swaying and its relationship with the geometry matching of wheel-rail contact, measured rail and wheel profiles are employed to present a comparative analysis with respect to the initial contact geometry.

A multibody dynamic railway vehicle system is established further.

Time-domain simulations state that the 2.5 Hz vibration on the carbody belongs to the natural frequency of the vehicle, and the amplitude is larger for the measured wheels than that of the standard wheel profiles.

By using the root-locus method, it can be determined that the 2.5 Hz vibration corresponds to the upper swaying mode of the carbody.

With the increase in the wheel-rail equivalent conicity, the hunting frequency of bogie increases gradually, which converts frequency with the upper swaying frequency of carbody and leads to carbody low-frequency swaying.

American Psychological Association (APA)

Shi, Yixuan& Dai, Huanyun& Wang, Qunsheng& Wei, Lai& Shi, Huailong. 2020. Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship. Shock and Vibration،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1213124

Modern Language Association (MLA)

Shi, Yixuan…[et al.]. Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship. Shock and Vibration No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1213124

American Medical Association (AMA)

Shi, Yixuan& Dai, Huanyun& Wang, Qunsheng& Wei, Lai& Shi, Huailong. Research on Low-Frequency Swaying Mechanism of Metro Vehicles Based on Wheel-Rail Relationship. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1213124

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1213124