Determination of friction performance influence in the system "body–bogie" on the freight car dynamics

S. V. Myamlin; L. O. Neduzha; A. O. Shvets

doi:10.15802/stp2014/23792

Authors

S. V. Myamlin Vice-Rector, Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Ukraine https://orcid.org/0000-0002-7383-9304
L. O. Neduzha Dep. «Structural Mechanics», Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, Dnipropetrovsk, Ukraine, 49010, tel./fax +38 (056) 793 19 03, e-mail nlorhen@i.ua, Ukraine https://orcid.org/0000-0002-7038-3006
A. O. Shvets Dep. «Structural Mechanics», Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, Dnipropetrovsk, Ukraine, 49010, tel./fax +38 (056) 793 19 03, Ukraine

DOI:

https://doi.org/10.15802/stp2014/23792

Keywords:

freight cars, side bearing, traveling speed, straight and curved track sections, dynamic performance

Abstract

Purpose. The main requirements for the design of a new generation of cars, according to the Program of rolling stock renovation, are the requirements reducing the operating costs and increasing the cost-effectiveness of their use, taking into account the achievements of scientific and technical thought. Due to the urgency of this subject the paper is devoted to the study of the friction coefficient influence in the bearing connection «center plate – center bowl – bearers»of freight cars on their main dynamic parameters – coefficients of horizontal and vertical dynamics, body acceleration, frame strength, derailment stability factor. Methodology. The study was conducted by numerical integration and mathematical modeling of the freight car dynamic loading using the software package «Dynamics of Rail Vehicles» («DYNRAIL»). Findings. Investigations have shown that the safety movement parameters are influenced by both the friction parameters in bearing connection «center plate – center bowl – bearers» of freight cars in empty and loaded state with bogies TSNII-X3 (model 18-100). Effect have other components of freight car dynamics, namely: radii of curved track sections, height of outer rail, etc. Originality. The author investigated the friction influence on the car dynamic loading using new approaches to solving the problem of predicting the rolling stock dynamics. Prediction was carried out on the basis of significantly updated theoretical material that covers all history of the friction theory and includes the results of recent experimental studies because of the speed on the straights and curves of small-and medium-range sections of the road.Practical value. The obtained results have practical orientation. During the research and after modeling with the improved method of accounting of friction processes dependencies of main dynamic parameters of a four-freight gondola on the value of the friction coefficient in the "body – bogie" with regard to speed were obtained. The results of scientific studies have found their scientific use in a number of author publications in the special scientific and popular publications.

Author Biographies

S. V. Myamlin, Vice-Rector, Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan

L. O. Neduzha, Dep. «Structural Mechanics», Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, Dnipropetrovsk, Ukraine, 49010, tel./fax +38 (056) 793 19 03, e-mail nlorhen@i.ua

Л. А. Недужая

A. O. Shvets, Dep. «Structural Mechanics», Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Lazaryan St., 2, Dnipropetrovsk, Ukraine, 49010, tel./fax +38 (056) 793 19 03

А. А. Швец

References

Appel P. Statika. Dinamika tochki [Statics. Particle dynamics]. Moscow, Gos. izd. fiziko-matem. liter. Publ., 1960. 515 p.

Bondarenko A.A., Dubinin O.O., Pereiaslavtsev O.M. Teoretychna mekhanika [Theoretical mechanics]. Kyiv., Znannia Publ., 2004. 590 p.

Verigo M.F., Kogan A.Ya. Vzaimodeystviye puti i podvizhnogo sostava [Railway track and rolling stock interaction]. Moscow, Transport Publ., 1986. 560 p.

Vershinskiy S.V., Danilov V.N., Khusidov V.D. Dinamika vagona [Car dynamics]. Moscow, Transport Publ., 1991. 360 p.

Lukhanin N.I., Myamlin S.V., Neduzhaya L.A., Shvets A.A. Dinamika gruzovykh vagonov s uchetom poperechnogo smeshcheniya telezhek [Freight cars dynamics, taking into account transversal displacement of the bogies]. Zbіrnyk naukovykh prats Donetskoho instytutu zaliznychnoho transportu [Bulletin of the Donetsk Railway Transport Institute], 2012, issue 29, pp. 234-241.

Lazaryan V.A. Dinamika vagonov [Dynamics of cars]. Moscow, Transport Publ., 1964. 256 p.

Lazaryan V.A. Dinamika transportnykh sredstv [Dynamics of vehicles]. Kyiv, Naukova dumka Publ., 1985. 528 p.

Normy dlya rascheta i proyektirovaniya vagonov zheleznykh dorog MPS kolei 1520 mm (nesamokhodnykh) [Standards for design and construction of railroads with 1520 mm track cars (non-self-propelled)]. Moscow, GosNIIV-VNIIZhT Publ., 1996. 352 p.

Danovich V.D., Rybkin V.V., Myamlin S.V., Reydemeyster A.G., Tryakin A.G., Khalipova N.V. Opredeleniye dopuskayemykh skorostey dvizheniya gruzovykh vagonov po zh.-d. putyam kolei 1520 mm [Permissible velocity determination of the freight cars on the railroads with the 1520 mm tracks]. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu imeni akademika V. Lazariana [Bulletin of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan], 2003, issue 2, pp. 77-86.

Ofitsiinyi veb-sait Ukrzaliznytsi [Official web-site of Ukrzaliznytsia]. Available at: www/uz.gov.ua (Accessed 21 January 2014).

Pavlovskyi M.A. Teoretychna mekhanika [Theoretical mechanics]. Kyiv, Tekhnika Publ., 2002. 512 p.

Myamlin S.V. Kompyuternaya programma «Dynamics of Rail Vehicles» [Software package «Dynamics of Rail Vehicles» («DYNRAIL»). Certificate of copyright registration on the invention], no. 7305, 2003.

Sergiyenko N.I. Sostoyaniye i perspektivy razvitiya vagonnogo khozyaystva Ukrzaliznytsi [Condition and development prospects for Ukrzalinytsia’s car facilities]. Vagonnyy park – Wagon fleet, 2011, no. 9, pp. 4-13.

Targ S.M. Kratkiy kurs teoreticheskoy mekhaniki [Short course of theoretical mechanics]. Moscow, Vyssh. Shkola Publ., 1986. 416 p.

Shadur L.A. Vagony: Konstruktsiya, teoriya i raschet [Cars: construction, theory and calculation]. Moscow, Transport Publ., 1980. 440 p.

Bubnov V.M., Myamlin S.V., Mankevych N.V. Dynamic performance of freight cars on bogies model 18-1711. Vіsnyk Dnіpropetrovskoho natsіonalnoho unіversitetu zalіznychnoho transportu імені akademіka V. Lazariana [Bulletin of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan], 2013, issue 4 (46), pp. 118-126.

Myamlin S., Neduzha L., Ten O., Shvets A. Determination of Dynamic Performance of Freight Cars Taking Into Account Technical Condition of Side Bearers. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu − Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2013, no. 1 (43), pp. 162-169.

Myamlin S., Luchanin M., Neduzha L. Construction Analysis of Mechanical Parts of Locomotives. TEKA Commission of Motorization and Power Industry in Agriculture, 2013, vol. 13, no. 3, pp. 162-169.

Myamlin S., Neduzha L., Ten O., Shvets A. Research of Friction Indices Influence on the Freight Car Dynamics. TEKA Commission of Motorization and Power Industry in Agriculture, 2013, vol. 13, no. 4, pp. 159-166.

Myamlin S., Neduzha L., Ten O., Shvets A. Spatial Vibration of Cargo Cars in Computer Modelling with the Account of Their Inertia Properties. Proc. of 15th Int. Conf. Mechanika, 2010, pp. 325-328.