Dynamics and optimization of a new double-axle flexible bogie for high-speed trains

Abstract

This paper is focused on the discussion of a new double-axle flexible bogie for high-speed trains. The main feature of the flexible bogie is that it consists of two sub-bogies connected with diagonal links. Moreover, an elastic connection between the carriage and both wheelsets is introduced. These features, which help to increase the flexibility of the bogie while passing tracks with a low radius of curvature, are numerically studied in this paper. The results demonstrate the huge potential of the bogie and its ability to travel without significant oscillations at a speed of 432 km/h. Numerical optimization of the bogie’s parameters is performed in order to maximize ride comfort.

Keywords

Two-axle wheelset high-speed train train dynamics vibrations

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References

Iwnicki

. Handbook of railway vehicle dynamics 2006CRC Press, pp. 552–552.

Duffy

. Electric railways, London: The Institution of Engineering and Technology, 2003, pp. 452–452.

Kalker

. Three-dimensional elastic bodies in rolling contact, Dordrecht: Kluwer Academic, 1990.

Johnson

. Contact mechanics, Cambridge: Cambridge University Press, 1985.

Birukov

Savoskin

Burchak

et al.

Mechanical part of a locomotive 1992M:Transport, pp. 440–440.

Himmelblau

. Problem number 11. In: Applied nonlinear programming, New York: McGraw Hill, 1972, pp. 498–498.

Thompson

. Railway noise and vibration: mechanisms, modelling and means of control, Oxford: Elsevier, 2009.