Influence assessment of the passive restraint system devices of the passenger locomotive on its dynamic loading during accidenton the railroad
Keywords:rolling stock, locomotive, incident collisions, passive safety system, force characteristics
The purpose. To evaluate the work of passenger locomotive protective devices in the test scenarios of collisions adopted in the Russian requirements to the passive safety system. Methodology. Minimization of the effects of incident collisions is done by inclusion of the passive safety devices designed to absorb the kinetic energy of collision in the car bodies bearing constructions. To estimate the maximum accelerations of the train, as well as the compressing longitudinal forces arising in the intercar connection during collisions the discrete mass model of the train is used. Interaction of the train cars was simulated by introducing intercar connections. Findings. At collision of a locomotive at 20 km/h speed (both in separate and in standard train), which does not have a passive safety system, with a vehicle of 10 tones weight the plastic deformations in the locomotive structural elements are observed. At collision of a locomotive with a vehicle, which a mass is comparable to the mass of the loaded car, the plastic deformations in the locomotive structural elements occur at the 10 km/h speed of collision. Originality. It is shown that to decrease the maximum longitudinal force occurring between the locomotive and an obstacle like a freight car of 80 tons mass to the standard value it is necessary to equip the end parts of locomotive with safety devices, which deformation is about 1.5 m. Practical value. To preserve the car structures integrity and passengers, staff and locomotive brigade safety at the incident collisions, a new generation passenger locomotives have to be equipped with the passive safety system devices. On this basis, it is necessary to conduct further researches in the field of passive safety systems for carriages.
Blokhin Ye.P., Manashkin L.A Dinamika poyezda (nestatsionarnyye prodolnyye kolebaniya)[Dynamics of the train (transient longitudinal oscillations)]. Moscow, Transport Publ., 1982. 222 p.
Lazaryan V.A. O perekhodnykh rezhimakh dvizheniya poezdov [On the transient modes of the train traffic]. Trudy DIIT “Issledovaniya po dinamike relsovykh ekipazhey (19–yy vypusk trudov seminara po mekhanike” [Proc. of Dnepropetrovsk Institute of Transport Engineers “Studies on the dynamics of railway vehicles (proceedings of the 19–th edition of the seminar on mechanics)”], 1973, issue 152, pp. 3-43.
Bogomaz G.I., Naumenko N.Ye., Pshinko A.N., Myamlin S.V. Nagruzhennost vagonov-tsistern pri perekhodnykh rezhimakh dvizheniya poyezdov [Tank car loading by the transient modes of train traffic]. Kyiv, Naukova dumka Publ., 2010. 215 p.
Naumenko N.Ye. Otsenka effektivnosti sistemy passivnoy bezopasnosti lokomotiva pri otrabotke testovykh stsenariyev stolknoveniya [Efficiency estimate of passive safety system of the locomotive during collision test case practice]. Tekhnicheskaya mekhanika – Technical mechanics, 2012, no. 1, pp. 3-8.
Normy dlya rascheta i proektirovaniya vagonov zheleznykh dorog MPS kolei 1520 mm (nesamokhodnykh) [Standards for design and construction of railroads with 1520 mm. track cars (non–self–propelled)]. Moscow, VNIIZhT Publ., 1996. 319 p.
Tekhnicheskie trebovaniya k sisteme passivnoy bezopasnosti podvizhnogo sostava dlya passazhirskikh perevozok zheleznykh dorog kolei 1520 mm [Technical requirements for passive safety system of the rolling stock for passenger traffic on the railroads with 1520 mm. track]. Moscow, OAO “RZhD”Publ., 2011. 16 p.
Ciry B. Mekhanicheskaya chast gruzovykh lokomotivov semeystva Prima [Mechanical part of freight locomotives of the Prima family]. Zheleznye dorogi mira – Railways of the world, 2009, no. 5, pp. 32-45.
EN 12663. Railway applications – Structural requirements of railway vehicle bodies. Brussel, European committee for standardization Publ., 2000. 18 p.
EN 15227:2008. Railway applications – Crashworthmess requirements for railway vehicle bodies. Brussel, European committee for standardization Publ., 2008. – 37 p.
Kraus T. Energopogloshchayushchiye bufera kak sredstvo zashchity pri stolknoveniyakh [Energy–absorbing buffers as protection in collision]. Zheleznye dorogi mira – Railways of the world, 2010, no. 2. pp. 70-72.
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