DETERMINATION OF DYNAMIC LOADS FROM THE WHEEL ON THE RAIL FOR HIGH-SPEED TRAINS
DOI:
https://doi.org/10.15802/stp2015/46069Keywords:
railways calculation for strength, permanent way, high-speed train, tension in a rail, dynamic force, dynamic irregularityAbstract
Purpose. On the basis of theoretical assumptions and experimental studies the paper provides the choice of the factors for the formation of dynamic load on the track of modern rolling stock in the conditions of high-speed. This results in a calculation method of determining a vertical force which acts on the wheels on the rails. Methodology. The current trend of development of transport networks is the introduction to Ukrainian railways speed, and in the future – high-speed, passenger trains. Fundamental structural changes in these trains, and a significant increase in speed results in a need to revise the calculation methods of action of rolling stock on the railway track, the ratio of the standard deviations of various dynamic forces, assess the impact of different factors for different speeds. In the work investigated the change in the dynamic load on the results of experimental measurements. Findings. The dependences of the average and the calculated forces on the speed of modern passenger trains were obtained. Using factor analysis of variance obtained numerical characteristics of the influence of different factors on the value of the vertical force acts on the wheel rail and the degrees of influence of various factors on its deformation were determined. Based on the results of experimental and theoretical research, the necessity of revising the methodology for determining the estimated power for practical calculations the way to strength in terms of passenger trains at high speeds was grounded. Originality. On the basis of theoretical research and analysis of statistical data of experimental measurements it was found that the main factor driving the dynamic vertical force component for modern passenger trains are the vibrations of the «wheel-rail» system or so-called «dynamic wheel passing the rough ways». Practical value. Existing methods of calculating the dynamic component of the vertical forces need such indicators as the reduced mass of the way. The obtained results in the study indicate that a parameter is artificial and can only be used for low speeds at the level of static calculation schemes.
References
Verigo M.F. Osnovnyye polozheniya metodiki rascheta sil, deystvuyushchikh na zhelezobetonnyye shpaly [Basic methods of calculating the forces acting on concrete sleepers]. Trudy Vserossiyskogo nauchno issledovatelskogo instituta zheleznodorozhnogo transporta [Proc. of All-Russian Scientific Research Institute of Railway Transport]. Moscow, 1963, vol. 257, pp. 5-39.
Bromberg Ye.M., Verigo M.F., Danilov V.N., Frishman M.A. Vzaimodeystviye puti i podvizhnogo sostava [The interaction between the track and rolling stock]. Moscow, Transzheldorizdat Publ., 1956. 280 p.
Gurskiy Ye.I. Teoriya veroyatnostey s elementami matematicheskoy statistiki [Probability theory with elements of mathematical statistics]. Moscow, Vysshaya shkola Publ., 1971. 328 p.
Danilenko E.I. Zaliznychna koliia. Ulashtuvannia, proektuvannia i rozrakhunky, vzaiemodiia z rukhomym skladom [Railway track. Arrangement, design and calculations, interaction with rolling stock]. Kyiv, Inpres Publ., 2010, vol. 2. 456 p.
Danilenko E.I., Rybkin V.V. Pravyla rozrakhunkiv zaliznychnoi kolii na mitsnist i stiikist. TsP-0117 [The terms of payment of railway track for strength and stability. TsP-0117]. Kyiv, Transport Ukrainy Publ., 2004. 64 p.
Krasheinin O.S., Hohaiev V.A. Napriamky udoskonalennia systemy utrymannia motorvahonnoho rukhomoho skladu [Improvement directions of maintenance system of multiple unit]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2014, no. 4 (52), pp. 119-126. doi: 10.15802/stp2014/27360.
Kurgan D., Bondarenko I. Model napryazhenno-deformirovannogo sostoyaniya zheleznodorozhnogo puti na osnove volnovoy teorii rasprostraneniya napryazheniy [Model the stress-strain state of railway track based on the wave propagation of theory stresses]. Problemy Kolejnictwa, 2013, vol. 159, pp. 99-111.
Kurhan D.M. Osoblyvosti spryiniattia navantazhennia elementamy zaliznychnoi kolii pry vysokykh shvydkostiakh rukhu [Features of perception of loading elements of the railway track at high speeds of the movement]. Nauka ta prohres transportu. Visnyk Dnipropetrovskoho natsionalnoho universytetu zaliznychnoho transportu – Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, 2015, no. 2 (56), pp. 136-145. doi: 10.15802/stp2015/42172.
Likhtberger B. Zheleznodorozhnyy put [Railway track]. Hamburg, DVV Media Group GmbH Publ., 2010. 434 p.
Babenko A., Lynnyk H., Moiseienko K. Polozhennia pro provedennia planovo-zapobizhnykh remontno-koliinykh robit na zaliznytsiakh Ukrainy. TsP-0287 [Regulations on safety planning and track repair work on the railways ofUkraine. TsP-0287]. Kyiv, Devalta Publ., 2014. 45 p.
Rybkin V.V., Bondarenko I.O., Kurhan D.M. Nadiinist zaliznychnoi kolii [Reliability of railway track]. Dnipropetrovsk National University of Railway Transport named after Academician V. Lazarian Publ., 2013. 154 p.
Patlasov O.M., Rybkin V.V., Paleichuk Yu.V., Solomakha S.O., Panchenko P.V. Tekhnichni vkazivky shchodo otsinky stanu reikovoi kolii za pokaznykamy koliievymiriuvalnykh vahoniv ta zabezpechennia bezpeky rukhu poizdiv pry vidstupakh vid norm utrymannia reikovoi kolii. TsP-0267 [Technical guidelines for the assessment of rail track by track measuring performance cars and to ensure traffic safety during the retreat from the norms of maintenance of a rail track. TsP-0267]. Kyiv, Polihrafservis Publ., 2012. 25 p.
Chernyshov M.A. Prakticheskiye metody rascheta puti [Practical methods for calculating the track]. Moscow, Transport Publ., 1967. 236 p.
André José Maria C.S. A railway steering system guided by a reference ahead of the trai. Vehicle System Dynamics, 2013, vol. 51, issue 3, pp. 481-496. doi: 10.1080/00423114.2012.757333.
Roanes-Lozano E. The Geometry of Railway Geometric Overthrow Revisited Using Computer Algebra Methods. Mathematics in Computer Science, 2013, vol. 7, issue 4, pp. 473-485. doi: 10.1007/s11786-013-0164-7.
Stukalina O., Dzhaleva-Chonkova A. Problems of rail connections between Ukraineand its neighboring countries. Mechanics Transport Communications, 2012, vol. 10, issue 3/2, pp. 3.4-3.8.
Talgo 250. Available at: http://www.talgo.com/pdf/t250_250H_en.pdf (Accessed 8 April 2015).
Downloads
How to Cite
Issue
Section
License
Copyright and Licensing
This journal provides open access to all of its content.
As such, copyright for articles published in this journal is retained by the authors, under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0). The CC BY license permits commercial and non-commercial reuse. Such access is associated with increased readership and increased citation of an author's work. For more information on this approach, see the Public Knowledge Project, the Directory of Open Access Journals, or the Budapest Open Access Initiative.
The CC BY 4.0 license allows users to copy, distribute and adapt the work in any way, provided that they properly point to the author. Therefore, the editorial board of the journal does not prevent from placing published materials in third-party repositories. In order to protect manuscripts from misappropriation by unscrupulous authors, reference should be made to the original version of the work.
