Influence of thermophysical processes on the friction properties of wheel ‒ rail pair in the contact area
/ 0
- Details
- Category: Geotechnical and Mining Mechanical Engineering, Machine Building
- Last Updated on 22 May 2018
- Published on 16 May 2018
- Hits: 3440
Authors:
V. P. Franchuk, Dr. Sc. (Tech.), Prof., orcid.org/0000-0003-0808-6606, National Mining University, Dniprо, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
K. A. Ziborov,Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-4828-3762, National Mining University, Dniprо, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
V. V. Krivda,Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-8304-2016, National Mining University, Dniprо, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
S. O. Fedoriachenko,Cand. Sc. (Tech.), Assoc. Prof. orcid.org/0000-0002-8512-3493, National Mining University, Dniprо, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Purpose. Determination of the regularities in the variation of the coupling parameters of the wheel-rail pair and the energy consumption accompanying them, taking into account the thermophysical processes in the contact zone in the transmission of friction motion for various interaction conditions.
Methodology. An analytical model for the interaction of a wheel and a rail on an elementary contact spot is developed in the presence of normal and tractive effort. A dependence that describes the change in the average temperature at the contact spot of the wheel-rail pair on the locomotive speed is obtained. The current value of the elasticity modulus of the contacting pair material is determined as a contact time function.
Findings. Based on theoretical studies of the parameters of vehicle motion along the railroad track, a mathematical model of the tractive force realization for nonstationary rectilinear motion is formulated. To determine the influence degree of the temperature change on the contact spot of the wheel-rail pair associated with the speed of the locomotive motion and the relative speed of the output links, the dependences for the coefficient characterizing the tractive power of the vehicle are obtained.
Originality. Taking into account the thermophysical processes that occur during the interaction of contacting bodies, analytical dependencies have been obtained to determine the traction capacity for different movement speeds and the relative speed of the wheel and rail movement for main and mine locomotives. The dependencies suggested take into account the change in the properties of the surface layers of the contacting pair.
Practical value. Knowledge of physics of the processes occurring in the contact zone of the wheel-rail pair will allow more accurately predicting the vehicles tractive properties, comparing possible options at the design stage and greatly accelerating the process of selecting the structural scheme. This will allow developing recommendations and proposals on modernization and improvement of existing vehicles.
References.
1.Franchuk, V.P., Ziborov, К.А., Fedoriachenko, S.A. and Krivda, V.V., 2017. On Wheel Rolling Allong the Rail Regime with Longitudinal Load. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 3, рр. 75–80.
2.Lewis, R., Magel, E., Wang, W.-J., Olofsson, U., Lewis, S., Slatter, T. and Beagles, A., 2017. Towards a standard approach for the wear testing of wheel and rail materials. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit [e-journal], 231(7), pp. 760‒774. DOI: 10.1177/ 0954409717700531.
3.Zabolotny, K. and Panchenko, E., 2010. Definition of rating loading in spires of multilayer winding of rubberrope cable. New Techniques and Technologies in Mining: School of Underground Mining 2010. CRC Press/Balkema, рр. 223–229.
4.Aditya Kadian, Sampann Arora, Akshath Sharma, Girish M. Joshi, Mayank Pandey, Anji Polu Reddy, Joshi, M. J. and Thomas, P., 2016. Improved dielectric constant of thermoplastic blend as a function of alumina loading. Measurement, 90, pp. 461‒467.
5.Semrad, K., Cernan, J. and Draganova, K., 2016. Rolling Contact Fatigue Life Evaluation Using Weibull Distribution. Mechanics, Materials Science & Engineering, 3(1), pp. 28‒34. ISSN: 2412—5954.
6.Ahmed Abdelmoamen Khalil, 2017. Negative Impacts on Railway Embankments Exposed to Wind-Blown Sand and Optimizing the Economic Height. Mechanics, Materials Science & Engineering [e-journal], 10. DOI: seo4u.link/10.2412/mmse.39.59.615.
7.Protsiv, V.V. and Monya, A.G., 2003. Experimental determination of characteristics of clutch of mine locomotive under the braking conditions, Metallurgicheskaya i Gornorudnaya Promyshlennost [online], 2, pp. 95‒97. Available at: <https://www.researchgate.net/publication/293546988_Experimental_determination_of_characteristics_of_clutch_of_mine_locomotive_under_the_braking_conditions> [Accessed 2 July 2017].
8.Bajelan, A. and Akbarimajd, A., 2016. A new mechanism for passive dynamic object manipulation along a curved path. Journal for Control, Measurement, Electronics, Computing and Communications, 57(1), pp. 188‒200.
9.Ziborov, K.A., Protsiv, V.V., Fedoriachenko, S.O. and Verner, I.V., 2016. On Influence Of Design Parameters Of Mining Rail Transport On Safety Indicators. Mechanics, Materials Science & Engineering, 2(1), pp. 63‒70.
10.Kyrychenko, Y., Samusia, V. and Kyrychenko, V., 2012. Software development for the automatic control system of deep-water hydrohoist. In: Geomechanical Processes During Underground Mining - Proceedings of the School of Underground Mining 2012 [online], pp. 81‒86. Available at: <http://antosoft.net/ebooks/ 75678-geomechanical-processes-during-underground-mining-school-of-underground-mining-2012.html> [Accessed 24 July 2017].
11.Ilin, S.R., Samusia, V.I., Ilina, I.S. and Ilina, S.S., 2016. Influence of dynamic processes in mine hoists on safety exploitation of shafts with broken geometry. Naukovyi Visnyk Natsіonalnoho Hіrnychoho Unіversytetu, 3, pp. 42–47.
12.Matsyuk, I. and Shlyahov, E., 2015. The research of plane link complexstructure mechanisms by vector algebra methods, Eastern European Journal of Enterprise Technologies, 3(7), pp. 34‒38.
13.Kravets, V.V. and Kravets, T.V., 2009. Kinetic energy of an asymmetric rigid body moving around a fixed point: Invariant representation in terms of quaternion matrices. International Applied Mechanics [e-journal], 45(12), pp. 1374‒1379. DOI: 10.1007/s10778-010-0275-7.
14.Kolosov, D., Dolgov, O. and Kolosov, A., 2013. The stress-strain state of the belt on a drum under compression by flat plates. In: Annual Scientific-Technical Colletion — Mining of Mineral Deposits, pp. 351‒355.
15.Samusia, V.I., Oksen, Y.I. and Radiuk, M.V., 2013. Heat pumps for mine water waste heat recovery. Annual collection of scientific-technical papers “Mining of mineral deposits”, pp. 153–157. DOI: 10.1201/b16354-27.
Archive