TECHNICAL MECHANICS
ISSN (Print): 1561-9184, ISSN (Online): 2616-6380
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UDC 629.7
Technical mechanics, 2017, 4, 79 - 88
IMPROVEMENT OF THE RUNNING GEAR OF A PROSPECTIVE FREIGHT CAR
DOI: https://doi.org/10.15407/itm2017.04.079
V. F. Ushkalov, T. F. Mokrii, I. YU. Malysheva, N. V. Bezrukavyi
| ABOUT THE AUTHORS |
V. F. Ushkalov
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine
T. F. Mokrii
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine
I. YU. Malysheva
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine
N. V. Bezrukavyi
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
Ukraine
| ABSTRACT |
This work is concerned with the resolution of the problem of Ukrainian freight car fleet upgrading with the aim to improve car ride quality, extend running gear service life, and increase train operation safety.
The aim of this work is to develop recommendations on improvement of the running gear of prospective freight cars to increase their speed and ride quality and reduce wheel wear. Use is made of mathematical simulation, numerical integration, oscillation theory, and statistical dynamics methods.
The paper presents the results of investigations into the efficiency of introduction of new elements into the design of 18-7020 trucks, such as cross links between the side frames, a resilient adapter in the journal box assembly, and the ITM-73-02 wheel profile developed at the Institute of Technical Mechanics. Their effect on car vibration and car–rail interaction is studied for a freight car moving at different speeds in tangent and curved track sections. Parameter values for the additional links are recommended.
It is concluded that the proposed redesign makes it possible to develop prospective trucks for new generation cars with improved ride quality and low wheel wear.
| KEYWORDS |
running gear of a prospective freight car, ride quality, wheel and rail wear, recommendations on truck improvement
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| REFERENCES |
1. Ushkalov V. F., Lashko A. D., Mokrii T. F. Freight car truck upgrading as a way of freight rolling stock running gear renewal. Vestnik VNIIZhT. 2013. No. 5. Pp. 8-15. (in Russian).
2. Model 18-7020 Type 2 Two-Axle Truck. URL: http://test.kvsz.com/index.php/ru/produktsiya/gruzovoe-vagonostroenie/khodovye-chasti/telezhki/item/833-dvukhosnaya-telezhka-model-18-7020. (in Russian).
3. 18-9817 Two-Axle Truck with a 25 tf Wheelset-to-Rail Load. URL: http://okb.at.ua/publ/telezhka_dvukhosnaja_modeli_18_9817_s_nagruzkoj_ot_kolesnoj_pary_na_relsy_25t/1-1-0-6. (in Russian).
4. William J. H., Ebersohn W., Lundgren J., Tournay H., Zakharov S. Guidelines to Best Practices for Heavy Haul Railway Operations: Wheel and Rail Interface Issues. USA: International Heavy Haul Association. 2001. 482 pp.
5. Ushkalov V. F., Mokriy T. F. Malysheva I. Yu. Mathematical model of interactions between railway and track considering distributions of contact forces throughout contact spots. Teh. Meh. 2015. No. 2. Pp. 79-89. (in Russian).
6. Savchuk V. B., Zobov G. M. Radius of break at the Council of Chief Designers. Tekhnika Zheleznykh Dorog. 2013. No. 2 (22). Pp. 32-36. (in Russian).
7. Ushkalov V. F., Mokriy T. F. Malysheva I. Yu., Pasichnik S. S. Effects of the horizontal rigidity of elastic adapter in axle-box assembly of bogy on dynamic qualities of open car. Teh. Meh. 2016. No. 4. Pp. 85-93. (in Russian).
8. Ushkalov V. F., Mokriy T. F., Malysheva I. Yu., Mashchenko I. A. Evaluation of the effect of the parameters of diagonal links between the side frames of a prospective truck on the ride quality of a new generation gondola car. Teh. Meh. 2009. No. 2. Pp. 3-10. (in Russian).
DOI: https://doi.org/10.15407/itm2017.04.079
Copyright (©) 2017 V. F. Ushkalov, T. F. Mokrii, I. YU. Malysheva, N. V. Bezrukavyi
Copyright © 2014-2018 Technical mechanics
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