Authors: Mohammad Mahdi Feizi; Seyyed Mohammad Reza Sajadi; Majid Shahravi
Addresses: School of Railway Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran ' School of Railway Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran ' School of Railway Engineering, Iran University of Science and Technology, Tehran, 16846-13114, Iran
Abstract: According to the trains structure, longitudinal stability is as important as lateral. To control sloshing of low-viscosity fluids and its disadvantages, some railway organisations load tank wagons fully. This may lead to axle overload of the railway track and ultimately to derailment. A numerical investigation of the longitudinal behaviour of fluid in a partially filled tanker under braking is presented. For the analysis, the braking distance is simulated and the fluid is modelled by the Euler method. The behaviour of the fluid for different capacities is verified by test. Particularly, a two dimensional tank wagon containing 60% of low-viscosity fluid is considered. Finally, the effects of using baffles on pressure and velocity reduction are investigated.
Keywords: fluid sloshing; tank wagons; baffles; braking distance; longitudinal dynamics; low-viscosity fluids; partially filled tankers; railway wagons; simulation modelling; heavy vehicles; pressure reduction; velocity reduction.
International Journal of Heavy Vehicle Systems, 2014 Vol.21 No.1, pp.11 - 25
Available online: 14 Oct 2013 *Full-text access for editors Access for subscribers Purchase this article Comment on this article