DYNAMIC FEATURES OF STANDARD TANK CARS ON CURVED TRACK SECTIONS

Abstract

[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT Nature of interaction of wheel sets of four-axle and eight-axle tank cars with rails when driving in curves of railway track is considered, including specifics of longitudinal and transverse elastic ties of wheel sets with bogie’s side frames. The results of dynamic performance studies (coefficient of dynamic addition of vertical forces on sprung weight and transverse frame force) of tank cars in curves with radii of 350 and 650 m are provided. It follows that eight-axle tank car design under the terms of traffic safety from the point of view of dynamics is at the same level as a four-axle one, therefore, can be used without restriction on all railways under the same rules of maintenance for undercarriages of tank cars of both types. Keywords: railway, theoretical mechanics, tank car, wheel sets, rails in curves, dynamic performance, elastic and frictional bonds, unextinguished transverse acceleration, coefficient of dynamic addition of vertical forces, frame force, comparative analysis. REFERENCES 1.Verigo, M. F.Interaction of track and rolling stock in curves of small radius and the fight against side wear of rails and wheel flanges [Vzaimodejstvie puti i podvizhnogo sostava v krivyh malogo radiusa i bor’ba s bokovym iznosom rel’sov i grebnej koljos]. Moscow, PTKB CP MPS publ., 1997, 207 p. 2. Anisimov, P. S. Methods of Evaluation of the Impact of Freight cars on the Track. World of Transport and Transportation, Vol.12, 2014, Iss.1, pp.24-32. 3.Vershinskiy, S.V., Danilov, V.N., Khusidov, V. D. The dynamics of the car [Dinamika vagona]. Moscow, Transport publ., 1991, 360 p. 4.Anisimov, P.S., Zhelnin, G.G., Kulikovskiy, B. S. Permissible speed of eight-axle tanks dimensions TC [Dopuskaemye skorosti dvizhenija vos’miosnyh cistern gabarita Tc]. Trudy MIIT, 1986, Iss.780, pp.10-24. 5.Anisimov, P.S., Grachiova, L. O. Tests of eight-axle tanks for BAM [Ispytanija vos’miosnyh cistern dlja BAMa]. Zheleznodorozhnyj transport, 1986, Iss.5, pp.35-36.