ДОСЛІДЖЕННЯ ДИНАМІЧНИХ ПОКАЗНИКІВ ПЛАТФОРМИ В РАЗІ ЗМІЩЕННЯ ЦЕНТРА ТЯЖІННЯ ВАНТАЖУ

O. V. Shatunov; A. O. Shvets

doi:10.15802/stp2019/165160

Authors

O. V. Shatunov Dnipro National University of Railway Transport named after Academician V. Lazaryan, Ukraine https://orcid.org/0000-0002-1115-0093
A. O. Shvets Dnipro National University of Railway Transport named after Academician V. Lazaryan, Ukraine https://orcid.org/0000-0002-8469-3902

DOI:

https://doi.org/10.15802/stp2019/165160

Keywords:

load, flat wagon, dynamic indicators, curved track, longitudinal and lateral load, centre shift, travel speed

Abstract

Purpose. The article deals with the determining the influence of the longitudinal and lateral shift of gravity centre of the heavy load on the flat wagons, taking into account the travel speed based on the main dynamic indicators – the maximum coefficients of the dynamic supplement of spring-suspended and unsprung parts, the maximum ratio of frame force to static axle load, the wheel derailment safety factor. Methodology. The study was carried out using the method of mathematical and computer simulation of the dynamic loading of flat wagons based on the model of spatial oscillations of five coupled wagons and the software complex developed in the branch research laboratory of the rolling stock dynamics and strength (BRL RSDS). Theoretical studies were carried out during the movement of the model 13-401 flat wagon on typical 18-100 bogies with speeds in the range from 50 to 90 km/h in curves with radii of 350 and 600 m, with 130 and 120 mm canting, respectively. Findings. The paper presents the analysis of theoretical studies of the rolling stock dynamics on the example of flat wagons. The calculations were carried out using an application software package. In the course of performing theoretical studies and after simulation, taking into account the processes of oscillation of the flat wagon and load in the presence of longitudinal and lateral shift of its gravity centre, the dependences of the main dynamic indicators were obtained with regard to the magnitude of the travel speed. Originality. Using the mathematical model of the five coupled wagons, the effect of shift in two directions from the central symmetry axis of the heavy load centre was studied with regard to the travel speed along the curved track of small and medium radius in order to determine the dynamic loading of the flat wagon. Practical value. As a result of the above theoretical studies, the recommendations on the maximum possible values of the centre shift of heavy loads during their transportation on flat wagons are substantiated and proposed.

Author Biographies

O. V. Shatunov, Dnipro National University of Railway Transport named after Academician V. Lazaryan

Dep. «Cars and Car Facilities», Dnipro National University of Railway Transport named after Academician V. Lazaryan, La-zaryan St., 2, Dnipro, Ukraine, 49010, tel. +38 (067) 953 60 14, e-mail shatunov220648@gmail.com

A. O. Shvets, Dnipro National University of Railway Transport named after Academician V. Lazaryan

Dep. «Theoretical and Structural Mechanics», Dnipro National University of Railway Transport named after Academician
V. Lazaryan, Lazaryan St., 2, Dnipro, Ukraine, 49010, tel. +38 (050) 214 14 19, e-mail angela_Shvets@ua.fm

References

Babaev, A. M., Kablukov, V. A., & Shatunov, A. V. (1993). Dinamiko-prochnostnye kachestva scepa platform s uprugim gruzom. Dynamics of cars (рр. 118-120). St. Petersburg. (in Russian)

Danilenko, E. I. (2010). Zaliznychna koliia: pidruchnyk dlia vyshchykh navchalnykh zakladiv. (Vol. 1-2). Kyiv: Inpres. (in Ukrainian)

Danovich, V. D., & Anisimov, P. S. (1989). Kolebaniya v gorizontalnoy ploskosti 4-osn. platformy s nesimmetrichno raspolozhennym tyazhelovesnym gruzom. Vestnik of the Railway Research Institute, 3, 5-9. (in Russian)

Danovich, V. D., & Malysheva, A. A. (1998). Mathematical Model of Spatial Oscillations of the Coupling of Five Cars Moving Along a Rectilinear Section of the Track. Transport. Stress loading and durability of a rolling stock (рр. 62-69).Dnepropetrovsk. (in Russian)

Danovich, V. D. (1982). Spatial Cars Oscillations in Inertia Track. (Dysertatsiia doktora tekhnichnykh nauk). Dnepropetrovsk Institute of Railway Transport Engineering, Dnеpropetrovsk. (in Russian)

Vahony vantazhni. Vymohy do mitsnosti ta dynamichnykh yakostei, 58 DSTU 33211:2017 (2017). (in Ukrainian)

Zbirnyk № 17 Pravyl perevezennia i taryfiv zaliznychnoho transportu Ukrainy. (2005). Kуiv: SAM. (in Ukrainian)

Shvets, A. A., Zheleznov, K. I., Akulov, A. S., Zabolotny, A. N., & Chabanyuk, E. V. (2016). Determination the permissible forces in assessing the lift resistant factor of freight cars in trains. Science and Transport Progress, 1(61), 189-192. doi: 10.15802/stp2016/61045 (in Russian)

Shatunov, A. V., Sobornitskaya, V. V., Kovtun, E. N., & Markova, O. M. (2001). Opredelenie pokazatelej bezopasnosti dvizheniya platform s porozhnim avtopoezdom. Transport, 7, 116-120. (in Russian)

Kozachenko, D. M., Vernigora, R. V., Yelnikova, L. O., & Berezovy, M. I. (2017). Pidvyshchennia efektyvnosti operatyvnoho keruvannia lokomotyvnym parkom zaliznyts Ukrainy: Monohrafiia. Dnipro: Herda. (in Ukrainian)

Shatunov, A. V., Sobornitskaya, V. V., Kovtun, E. N., & Markova, O. M. (2000). Teoreticheskaya ocenka dinamicheskih kachestv platform, zagruzhennyh avtopoezdom s gruzom. Transport, 3, 21-27. (in Russian)

Tekhnicheskie usloviya razmeshcheniya i krepleniya gruzov. Prilozhenie 3 k Soglasheniyu o mezhdunarodnom zheleznodorozhnom gruzovom soobshchenii (SMGS). (2011). Kyiv: Devolta. (in Russian)

Shatunov, A. V. (1992). Nagruzhennost stsepa iz dvukh platform pri resursosberegayushchem sposobe transportirovki dlinnomernykh gruzov. (Avtoreferat dysertatsii kandydata tekhnichnykh nauk). Dnepropetrovsk Institute of Railway Transport Engineering, Dnеpropetrovsk. (in Russian)

Shvets, A. O. (2018). Influence of the longitudinal and transverse displacement of the center of gravity of the load in gondola cars on their dynamic indicators. Science and Transport Progress, 5(77), 115-128. doi: 10.15802/stp2018/146432. (in Ukrainian)

Shvets, A. A., Zhelieznov, K. I., Akulov, A. S., Zabolotnyi, A. N., & Chabaniuk, Y. V. (2015). Determination of the issue concerning the lift resistance factor of lightweight car. Science and Transport Progress, 6(60), 134-148. doi: 10.15802/stp2015/57098 (in English)

Blokhin, E. P., Pshinko, O. M., Danovich, V. D., & Korotenko, M. L. (1998). Effect of the state of car running gears and railway track on wheel and rail wear. Railway Bogies and Running Gears: Proceedings of the 4th International Conference (рр. 313-323).Budapest. (in English)

McKinnon, A. C. (2016). Freight Transport Deceleration: Its Possible Contribution to the Decarbonisation of Logistics. Transport Reviews, 36(4), 418-436. doi: 10.1080/01441647.2015.1137992 (in English)

Cole, C., Spiryagin, M., Wu, Q., & Sun, Y. Q. (2017). Modeling, simulation and applications of longitudinal train dynamics. Vehicle System Dynamics, 55(10), 1498-1571. doi: 10.1080/00423114.2017.1330484 (in English)

Navarrete, J. A., & Otremba, F. (2016). Experimental and theoretical modeling of cargo sloshing during braking. ASME International Mechanical Engineering Congress and Exposition (Phoenix, Arizona, USA, Nov. 11-17, 2016). Dynamics, Vibration, and Control, 4B. Phoenix. doi: 10.1115/imece2016-65698 (in English)

Ramos, A. G., Silva, E., & Oliveira, J. F. (2018). A new load balance methodology for container loading problem in road transportation. European Journal of Operational Research, 226(3), 1140-1152. doi: 10.1016/j.ejor.2017.10.050 (in English)

Wu, H. (2006). Effects of wheel and rail profiles on vehicle performance. Vehicle System Dynamics, 44(sup1), 541-550. doi: 10.1080/00423110600875393 (in English)

Wu, Q., Spiryagin, M., & Cole, C. (2016). Longitudinal train dynamics: an overview. Vehicle System Dynamics, 54(12), 1688-1714. doi: 10.1080/00423114.2016.1228988 (in English)