Method to Investigate Railway Vehicles Forced Oscillations in Curves in the Inertial Reference System
Abstract
Classical procedure prescribes to examine mechanical systems motion in non-inertial reference frames moving in relation to stationary inertial frame. In the present paper there is proposed method to examine forced oscillations of railway vehicles caused by curved track irregularities in plane and profile in inertial reference system, allowing for much-simplified setting up a problem and reduced computation time while making assessment of vehicle dynamics, its components loading and wear indices of a wheel/rail friction pair without loss of accuracy. Object of examination is represented with four-axle vehicle described by a set of non-linear differential equations. There are given computation results as exemplified by such vehicle movement in curves with different radii.
References
1. Nikitin N. N. Kurs teoreticheskoy mekhaniki [The course of theoretical mechanics]. Moscow, Vysshaya shkola Publ., 2003. 720 p.
2. Lilov L. K. Modelirovanie sistem svyazannykh tel [Modelling of systems of related bodies]. Moscow, Nauka Publ., 1993. 272 p.
3. Kondrashov V. M. Edinye printsipy issledovaniya dinamiki zheleznodorozhnykh ekipazhey v teorii i eksperimente [Common principles to study the dynamics of railway vehicles in the theory and experiment]. Tr. VNIIZhT [Proc. of the Railway Research Institute], Moscow, Intext Publ., 2001. 190 p.
4. 4 Garg V. K., Lukkipati R. V. Dynamics of railway vehicle systems. New York, Academic Press Publ., 1984. 375 p. (Russ. ed.: Garg V. K., Dukkipati R. V. Dinamika podvizhnogo sostava. Moscow, Transport Publ., 1988. 391 p.).
5. Fradkin G. N., Kossov V. S. Metodika modelirovaniya dvizheniya rel’sovogo ekipazha po puti s iskrivlennoy os’yu [Methods of motion simulation of railway vehicle on the road with a curved axis]. Trudy MIIT [Proc. Moscow Institute of Transportation Engineers], 1997, no. 912, pp. 12 – 22.
6. Kossov V. S. Prokhozhdenie lokomotivom krivykh uchastkov puti s uchetom uprugogo skol’zheniya koles [Passage by the locomotive of curve sections of track, taking into account the elastic wheel slip]. Kolomna, VNITI, 2000. 72 p. (Deposited at TsNIITEI MPS, № 6307).
7. Singh S. P., Garg V. K. Nonlinear dynamic curving model of a sixaxle locomotive. Proc. 8th IAVSD Symp. on the Dynamics of Vehicles on Roads and Tracks. Cambridge, MA, MIT, 1983, August, pp 15 – 19.
8. Kondrashov V. M. Metodika modelirovaniya dvizheniya tyagovoy edinitsy podvizhnogo sostava v rezhime tyagi i tormozheniya [Methods of modelling of traction unit movement in traction and braking modes]. Vestnik VNIIZhT [Vestnik of the Railway Research Institute], 2011, no. 1, pp. 23 – 28.
9. Kondrashov V., Maksimov I., Galperin V. Development of the wheel profiles of cars and locomotives for the existing railways for reduction of wear of wheel flanges and lateral surfaces of rail. International Heavy Haul Association STS-Conference «Wheel/Rail Interface», 1999, vol. 1, pp. 95 – 102.
10. Maksimov I. N. Prognozirovanie izmeneniya profilya kolesa v zavisimosti ot probega raschetnymi metodami [Computational predicting method of wheel profile change as a functionof the kilometrage]. Vestnik VNIIZhT [Vestnik of the Railway Research Institute], 2014, no. 5, pp. 30 – 37.
Review
For citations:
Kondrashov V.M. Method to Investigate Railway Vehicles Forced Oscillations in Curves in the Inertial Reference System. RUSSIAN RAILWAY SCIENCE JOURNAL. 2015;(5):56-60. (In Russ.)
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