Possibility to increase the speeds of express and high-speed trains by turnouts and connecting tracks

The possibility of increasing motion speeds of express (“Lastochka”) and high-speed (“Sapsan”) electric trains by the side direction of express (project 2726) and high-speed railway (project 2956) switches is experimentally investigated. It is caused by need of reduction of delays in train schedule caused by performance of repair and scheduled works on infrastructure facilities of lines. The basic methodical principle of pilot studies was the integrated approach based on definition of indicators of dynamic qualities and stability of the movement of a rolling stock in a common timepoint (coefficients of dynamic additives on vertical vibrations in steps of spring suspension, frame forces, vertical and horizontal accelerations of bodies of cars), impacts of a rolling stock on rail elements of railway switches (dynamic stresses, side forces), indicators of operability of locomotive crews and comfort of journey of passengers in operational environment. For the purpose of the broadest coverage of possible versions of handling express and high-speed electric trains on railway switches and connected tracks the objects of research were located in even and odd mouths of the station Chudovo of Oktyabrskaya railway; tested EMU was loaded by load simulators according to the scheme of rated passenger density of population. Numerical values of specified indicators are given and the basic possibility of the movement of electric trains on railway switches and connecting tracks with the speeds exceeding the existing standards is proved. By results of tests specific proposals on the updates of the existing normative documents of the Ministry of Transport of the Russia and JSC RZhD regulating operational activity on the lines intended for express and high-speed movement are formulated.

electric multiple unit, switch, integrated tests, permissible speeds, indicators of dynamic features of rolling stock, impact indicators for rail elements of switches, indicators of physical condition of passengers

1. Verigo M. F, Kogan A. Ya. Vzaimodeystvie puti i podvizhnogo sostava [Track and railway vehicle interaction]. Moscow, Transport Publ., 1986, 560 p.

2. Brzhezovskiy A. M., Tolmachev S. V., Arshintsev D. N., Smelyanskiy I. V. Vzaimodeystvie puti i podvizhnogo sostava EVS “Sapsan” (proekt Velaro RUS) [Interaction of track and EMU “Sapsan” (Velaro RUS project)].Vestnik VNIIZhT [Vestnik of the Railway Research Institute], 2012, no. 1, pp. 3 – 8.

3. Glyuzberg B. E., Zheleznov M., M. Novye strelochnye perevody dlya linii Sankt-Peterburg — Moskva [The new turnouts for the line St. Petersburg — Moscow]. Put’ i putevoe khozyaystvo. Vzaimodeystvie kolesa i rel’sa. [Tracks and track facilities. Interaction of wheel and rail]. Nauch. tr. VNIIZhT. [Proc. of the Railway Scientific Research Institute], Moscow, Intext Publ., 2013, 236 p.

4. Brzhezovskiy A. M., Zavertalyuk A. V., Romen Yu. S. Normy dopustimogo vozdeystviya na put’ i metody ispytaniy podvizhnogo sostava [Norms of permissible impact on the way and test methods for rolling stock]. Zheleznodorozhnyy transport [Railway transport], 2015, pp. 40 – 45.

5. Weber Н. Н. Zur direkten Messung der Krafte zwischen Rad und Schiene. Elektrische Bahnen. 1959 – 5, pp. 93 – 109.

6. Verigo M. F. Metodicheskoe posobie po primeneniyu matematicheskoy statistiki v obrabotke opytnykh dannykh [Guidelines on the application of mathematical statistics in the processing of experimental data]. Novosibirsk, MPS NIIZhT Publ., 1964, 113 p.