Effect of different types of wagon connectors on longitudinal forces of a heavy freight train
-
2018-04-20 https://doi.org/10.14419/ijet.v7i2.21.11841 -
Heavy freight train, longitudinal forces on coupler, auxiliary braking, service braking, wagon connector. -
Abstract
Indian Railway operates full rake freight trains of 2200t which consist of BOXN wagons having payload 58.08t and tare weight 23.2tfor each wagon. Longitudinal forces of a freight train have significant effects on safety parameters like derailment coefficient, comfort index and these forces are transmitted through the wagon connectors. For this reason, longitudinal forces are different for different types of wagon connectors. In this paper, the effect of different combination of wagon connectors on the longitudinal forces of a heavy freight train is studied. Nine combinations of the connectors are considered using three types of wagon connector, namely Sh-1-T, Sh-2-T, and Sh-2-V. The train model has one diesel locomotive and thirty open freight wagons each having 81.28t gross mass. The train movesona 1520mm gauge track of S-type curve having 300m radius. All simulations are performed in Universal Mechanism UM 8.1 software. The simulation results reveal that Sh-2-T wagon connector when used across the train generates the least longitudinal force.
Â
 -
References
[1] Iwnicki S, Handbook of Railway Vehicle Dynamics, CRC Press, Boca Raton, (2006).
[2] Ansari M, Esmailzadeh E & Younesian D, “Longitudinal dynamics of freight trainsâ€, International journal of heavy vehicle systems, Vol.16, No.1-2, (2009), pp.102-131.
[3] Chang C, Guo G, Wang J & Ma, Y, “Study on longitudinal force simulation of heavy-haul trainâ€, Vehicle System Dynamics, Vol.55, No.4, (2017), pp.571-582.
[4] Liu P & Wang K, “Effect of braking operation on wheel–rail dynamic interaction of wagons in sharp curveâ€, Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, Vol.231, No.1, (2017), pp.252-265.
[5] StokÅ‚osa J & JaÅ›kiewicz M, “Simulation study of longitudinal forces in the coupling device of heavy freight trainsâ€, Journal of Advances in Science and Technology Research, Vol.8, No.21, (2014).
[6] Younesian D, Abedi M & Hazrati Ashtiani I, “Dynamic analysis of a partially filled tanker train travelling on a curved trackâ€, International Journal of Heavy Vehicle Systems, Vol.17, No.3-4, (2010), pp.331-358.
[7] Xu ZQ, Ma WH, Wu Q & Luo SH, “Coupler rotation behaviour and its effect on heavy haul trainsâ€, Vehicle system dynamics, Vol.51, No.12, (2013), 1818-1838.
[8] Cheli F, Di Gialleonardo, E & Melzi S, “Freight trains dynamics: effect of payload and braking power distribution on coupling forcesâ€, Vehicle System Dynamics, Vol.55, No.4, (2017), 464-479.
[9] Universal Mechanism 8.1, Simulation of Longitudinal Train Dynamics. User’s manual, (2016).
[10] Cole C, Spiryagin M, Wu Q & Sun, YQ, “Modelling, simulation and applications of longitudinal train dynamicsâ€, Vehicle System Dynamics, (2017), pp.1-74.
-
Downloads
-
How to Cite
Rakshit, U., Malakar, B., & Krishna Roy, B. (2018). Effect of different types of wagon connectors on longitudinal forces of a heavy freight train. International Journal of Engineering & Technology, 7(2.21), 84-87. https://doi.org/10.14419/ijet.v7i2.21.11841Received date: 2018-04-21
Accepted date: 2018-04-21
Published date: 2018-04-20