This paper deals with brake modelling as used in train simulation study. Accuracy of predictions depend on the type of model used and the numerical techniques used in finding the solution. The model described is based on analysis of a pneumatic train circuit through which braking demand is impressed on each vehicle of the train and analysis of the vehicle pneumatic circuit which senses braking demand and correspondingly develops brake cylinder pressure. The results are in good agreement with the experimental data. It is found that detailed and exhaustive modelling requires large amounts of computing time.
Get full access to this article
View all access options for this article.
References
1.
ParkerC. W.Requirements of good train handling for long and heavy train. Proceedings of first International Heavy Haul Railway Conference, Perth, 1978.
2.
HartJ. E.GrejdaF. J.Computer simulation of rail vehicle braking performance. ASME paper 72-WA/RTT-5, 24 July, 1972.
3.
Technical documentation, train operation simulator. American Association of Railroads Report R-269, 1977.
4.
Theoretical studies of the development of longitudinal forces in goods trains equipped with conventional elastic elements. Organisations of Rail Experimentations Report B36/RP9, The Netherlands, 1972.
5.
FunkJ. E.RobeT. R.Transients in pneumatic transmission lines subjected to large pressure changesInt. J. Mech. Sci., 1970, 12, 245–257 (Pergamon Press).
6.
Kents Mechanical Engineers Handbook, Power Volume, twelfth edition, 1956 (N.Y.Wiley).
7.
MurtazaM. A.GargS. B. L.Dynamic response of a railway vehicle air brake system. Int. J. Vehicle Design, 1989, 10(3), (to be published).
