Preliminary numerical analysis of selected phenomena occurring in a rail fastening system

• Autorzy: Szurgott P. , Bernyś K.
• Języki publikacji: EN

Abstrakty

EN

The results of numerical analysis of selected phenomena occurring in a rail fastening system were presented in the paper. The study is focused on assessment of the state of displacement and stresses in the rail pad subjected to a moving load. Two finite element models of the considered system were developed. The first one included elementary track segment corresponding to one sleeper. The second FE model consisted of several elementary segments. The number of the track segments was determined independently on the basis of dynamic analysis carried out using LS-DYNA computer code. Essential FE analyses were performed using MSC.Marc/Mentat software. FE model of the elementary segment included 600 mm length rail and a two-side shaped rail pad. The Mooney - Rivlin material model was applied for the polyurethane rail pad. The fastening systems were modelled using spring elements. The vertical and longitudinal spring elements were also applied for the ballast modelling. A case of moving load caused by single vertical force - one axle - was considered in the study. Methodology of moving load simulation in the MSC.Marc software was proposed. The obtained results allowed assessing the total deflection of the rail pad, the state of stress, the load distribution on respective sleepers. Moreover, they gave information about the behaviour of the rail pad under moving load in context of static test described in respective standards.

Słowa kluczowe

EN

rail pad; fastening system; moving load; numerical analysis; hyperelastic material

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2012
• Tom: Vol. 19, No. 4
• Strony: 607--614
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Szurgott P.

autor

Bernyś K.

• Military University of Technology Department of Mechanics and Applied Computer Science Gen. Sylwestra Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Oczykowski, A., Research and Development of the SB Tension Clamp Fastening System, Railway Problems, No. 150, pp. 121–156, 2010 [in Polish].
• [2] Szurgott, P., Gotowicki, P., Niezgoda, T., Numerical Analysis of a Shaped Rail Pad Under Selected Static Load, Journal of KONES Powertrain and Transport, Vol. 19, No. 1, pp. 407–414, 2012.
• [3] Numerical FE Analysis of Rail Pads in the Rail Fastening System, Final Raport, No. PBN/03-500/2010/WAT, Military University of Technology, Warsaw, Poland 2010.
• [4] Szurgott, P., Klasztorny, M., Grosel, J., Wójcicki, Z., Experimental Validation of Numerical Modelling of the Bridge – Track – Moving Train System, WIT Transactions on Modelling and Simulation, Vol. 51, pp. 97–109, 2011.
• [5] Klasztorny, M., Szurgott, P., Modelling and Simulation of Bridge – Track – Train Systems at High Service Velocities with LS-DYNA®, 12th International LS-DYNA Users Conference, Dearborn, MI, United Staes, 2012.
• [6] Szurgott, P., Klasztorny, M., Niezgoda, T., Modelling and Numerical Simulation of Symmetric Vibrations of the KNI 140070 Viaduct – Ballasted Track – KTX Train System, Journal of KONES Powertrain and Transport, Vol. 17, No. 3, pp. 415–422, 2010.
• [7] Profillidis, V. A., Railway Management and Engineering, 3rd Edition, Ashgate Publishing Ltd., England 2006.
• [8] Klasztorny, M., Dynamics of Beam Bridges Loaded by High-Speed Trains [in Polish], WNT, Warsaw, Poland 2005.
• [9] Friszman, M. A., Railway Track and Its Interaction with the Rail Vehicles [in Polish], WKiŁ, Warsaw 1983.
• [10] Marc 2007 r1, Volume A: Theory and User Information, MSC.Software Corporation, United States 2007.
• [11] Szurgott, P., Boczkowska, A., Kurzydłowski, K. J., Niezgoda, T., Numerical Strength Analysis of Magnetic Fields Interaction with Elastomer Materials Containing Iron Particles, Proceeding of the III ECCOMAS Thematic Conference on Smart Structures and Materials, Gdansk, Poland 2007.