DETERMINATION AND ANALYSIS OF TECHNICAL PARAMETERS OF THE BENCH FOR RAILWAY WHEELS COMPLEX TESTS
Keywords:railway wheel, tests, test-bench, fatigue strength, contact strength, complex tests
Purpose. The purpose of the work is to determine and analyze the technical parameters of the bench for railway wheels complex tests, providing for the combination of fatigue and contact strength tests, their simultaneous performing on same test-bench. Methodology. Determination of the technical parameters of the test-bench was carried out based on comparing the characteristics of fatigue and contact strength tests of railway wheels. Requirements for fatigue tests and related equipment are determined based on an analysis of the current regulations and patent review. A model of the contact strength test-bench with the introduction of necessary changes in terms of ensuring the cyclicity of the working effort application was adopted as the basic model for the development of a complex test-bench. The criterion for the possibility of complex tests, involving the simultaneous testing of railway wheels for fatigue and contact strength, was the dependence of the test-bench roller diameter on the parameters of the tested wheel, the wheelset axle load, which includes the tested wheel and the wheel material endurance limit. Findings. The analysis of the obtained dependence showed that the roller diameter as a function of the load in the contact zone of the “wheel – roller” pair has second order discontinuity in the section where this load changes from the minimum to the maximum value. Analytical dependence is also presented and analyzed in graphical form. The generalization of the results obtained made it possible to conclude that it is impossible to carry out complex tests of railway wheels, which provide for the combination of fatigue strength tests with contact strength tests, subject to their simultaneous holding at the same test-bench. Originality. For the proposed scheme of the bench for complex tests of railway wheels, for the first time, we obtained the dependence linking the parameters of the test wheel, the parameters of the bench, the wheel pair axle load and the wheel material endurance limit. Practical value. The results obtained can be used as a basis for the development of new test-benches for railway wheels.
Vorobev, A. A. (2018). Prognozirovanie resursa i sovershenstvovanie tekhnologii remonta koles zheleznodo-rozhnogo podvizhnogo sostava (Extended abstract of PhD dissertation). St. Petersburg, Russia. (in Russian)
Kolesa tselnokatanye. Tekhnicheskie usloviya, 27 GOST 10791-2011 (2011). (in Russian)
Traction railway stock wheelsets of 1520 mm gauge railways. General specifications, 26 GOST 11018-2011 (2012). (in Russian)
Wheelsets of locomotives and motor-powered units. Strength calculations and tests, 11 GOST 31373-2008 (2008). (in Russian)
Wheelsets for freight and passenger car. Technical specifications, 11 GOST 4835-2013 (2014). (in Russian)
Dehtiaryova, L. N., Osenin, Yu. I., & Myamlin, S. V. (2009). Mathematical description of force interaction of wheels and rails. Bulletin of the Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, 28, 21-24. (in Russian)
Raksha, S. V., & Kuropiatnyk, O. S. (2020). Stendovi vyprobuvannja kolisnykh par rejkovogho transportu. Scientific and technical progress in European countries and the contribution of higher education institutions: Collective monograph (pp. 192–213). DOI: https://doi.org/10.30525/978-9934-588-65-5.11 (in Ukrainian)
Kebal, I. Yu., Zgrebna, S. M., Tiokotev, O. M., Tarasiuk, M. Yu., Raksha, S. V., & Kuropiatnyk, O. S. (2019). UA Patent 136718. (in Ukrainian)
Kochetkov, Ye. V., Knyazev, D. A., & Trepacheva, T. V. (2018). RU Patent 2650327. (in Russian)
Bidulya, A. L., Volokhov, G. M., Kochetkov, Ye. V., Knyazev, D. A., Timakov, M. V., & Shcherbakov, V. V. (2018). RU Patent 2651629. (in Russian)
Kolesa tselnokatanye. Opredelenie predela vynoslivosti diska. Tipovaya metodika ispytaniy, 7 ST SSFZhT TM 151-2003 (2003). (in Russian)
Yakunin, D. I., Makarenko, Yu. V., & Masliev, V. H. (2009). Influence of the inclination of the car body when driving along curved track sections on the interaction of wheels with rails. Bulletin of the Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, 30, 248-251. (in Russian)
Bureika, G., & Subačius, R. (2005). Matematical model of dynamic interaction between wheel-set and rail track. Bulletin of the Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, 8, 39-44. (in English)
Filippini, M., Luke, M., Varfolomeev, I., Regazzi, D., & Beretta S. (2017). Fatigue strength assessment of railway axles considering small-scale tests and damage calculations. Procedia Structural Integrity, 4, 11-18. DOI: https://doi.org/10.1016/j.prostr.2017.07.013 (in English)
Manashkin, L. A., & Myamlin, S. V. (2013). To the question of modeling of wheels and rails wear proces-ses. Science and Transport Progress, 3(45), 119-124. DOI: https://doi.org/10.15802/stp2013/14791 (in English)
Raksha, S. V., Anofriev, P. G., & Kuropiatnyk, O. S. (2020). Justification of the parameters of the life-test bench for railway wheelsets. IOP Conference Series: Materials Science and Engineering (preprint). (in English)
Raksha, S., Anofriev, P., & Kuropiatnyk, O. (2019). Simulation modelling of the rolling stock axle test-bench. E3S Web of Conferences, 123, 1-11. DOI: https://doi.org/10.1051/e3sconf/201912301032 (in English)
How to Cite
Copyright (c) 2021 S. V. Raksha, P. H. Anofriiev, O. S. Kuropiatnyk
This work is licensed under a Creative Commons Attribution 4.0 International License.
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).