Pre-load on the guiding/stabilizing wheels and the critical lateral force of a straddle-type monorail vehicle

Abstract

The anti-overturning ability of a straddle-type monorail vehicle is influenced by the contact status between the guiding and stabilizing wheels and the track beam; therefore, an initial pre-load is required for the stabilizing and guiding wheels to enhance the anti-overturning ability of the straddle-type monorail vehicle. Determining the reasonable pre-load for the stabilizing and guiding wheels is a significant problem in the operation of a straddle-type monorail vehicle. D’Alembert’s principle has been adopted to transform the dynamic problem that straddle-type monorail vehicle runs on curve segment to the statics problem. The formula describing the relationship between the critical lateral force of the vehicle and the pre-load of the stabilizing wheels is derived from the lateral roll equation of the straddle monorail vehicle and is verified using the multibody dynamics software UM. Subsequently, the reasonable pre-load for the stabilizing wheels is analyzed from the perspectives of comfort and safety based on the formula of critical lateral force. Finally, the maximum and minimum speed limits on a curve for a straddle-type monorail vehicle are discussed based on the aforementioned analysis.

Keywords

Straddle-type monorail vehicle pre-load on stabilizing tyre critical lateral force ride quality

Get full access to this article

View all access options for this article.

References

Xing

J-h

Song

Y-x

Yang

Q-s

. Dynamic response research of straddling monorail traffic system. Sci Tech Engg 2007; 7: 2724–2726.

Hun

Woo

Kawatani

et al.

Dynamic response analysis of monorail bridges under moving trains and riding comfort of trains. Eng Struct 2005; 27: 1999–2013.

Ji Y and Ren L. Anti-overturning capacity and critical roll angle of straddling monorail vehicle. Proc IMechE, Part C: J Mech Eng Sci 2018; 232: 4420–4429.

Ren

Wang

. The influence of wheel/rail gap and rotating mechanism on dynamic performance of APM. J Mech Sci Technol 2017; 31: 5245–5256.

Lee

Kawatani

Kim

et al.

Dynamic response of a monorail steel bridge under a moving train. J Sound Vib 2006; 294: 562–579.

Kenjiro G, Nishigaito T, Hiraishi M, et al. A curving simulation for a monorail car. In: Proceedings of the 2000 ASME /IEEE Joint Railroad Conference, Newark, NJ, USA, 6 April 2000, paper no.6684986, pp.171–177. IEEE.

Ren

Zhou

Shen

. Dynamics model and simulation study of a straddling monorail car. China Railw Sci 2004; 25: 26–31.

Zhang

Huang

et al.

Research on the pre-pressure of the guiding tyre and stabilizing tyre of a straddling monorail car. Railw Locomot Car 2011; 31: 48–48.

Ren

Zhou

Shen

et al.

Hunting stability of straddle-type monorail car based on equation eigenvalue. J Tongji Univ 2003; 31: 469–469.

10.

Yan

. Railway vehicle engineering, 3rd ed. Beijing: Chinese Railway Publishing House, 2010, pp. 277–277.

11.

Huang

Y-h

Ding

J-j

. Research on evaluation indexes of the curve negotiation performance of a straddle-type monorail car. Electr Locomot Mass Transit Vehicle 2013; 36: 1–4.

12.

Liang

. Study on the curve performance evaluation indexes system of the straddle-type monorail vehicle. Railw Locomot Car 2014; 34: 75–78.

13.

Yang

. On the curve speed limitation of straddle-type monorail vehicle based on genetic algorithm. Urban Rail Transit Res 2015; 18: 38–38.