A study on transient wear behavior of new freight wheel profiles due to two points contact in curve negotiation

• Autorzy: Shadfar M. , Molatefi H.

Identyfikatory

DOI

10.15632/jtam-pl.55.2.621

• Języki publikacji: EN

Abstrakty

EN

Systematic examinations on wear behavior of stick/slip contact around metal on metal have shown that the dissipated energy and contact forces are two important parameters of wear of wheels and rails. Nevertheless, an accurate estimation of these parameters is still a great challenge. Recent developments of non-linear dynamical models and simulation of operational conditions have tried to find a solution of this challenge. These results are used as the input to calculations of wear propagation. Though, the dynamic model should be able to predict wheel-rail interaction with high accuracy. In addition, wheel-rail wear is a function of several other parameters whose their integrated influence becomes more than the main discussed ones. In this study, with the help of multi-body dynamics (MBD), an open wagon equipped with three pieces bogies, considering non-linear effects of friction wedges and structural clearances is modeled in Universal Mechanism. Tangent and curved sections of the track considering random vertical and lateral irregularities are simulated. The simulation results are used to calculate wear of both left and right wheels separately. Specht’s wear model based on Archard’s wear model is used. The studied parameters are the rail side coefficient of friction, track quality, track curvature, velocity and rail side wear. Finally, the effects of mentioned parameters are studied on wear depth and wear pattern of new wheel profiles under incompatible contact (which occurs in Iran railway network). The results show different wear volume and wear pattern compared to compatible contact.

Słowa kluczowe

EN

three pieces bogie; Specht wear theory; wear depth; incompatible contact; rail side wear

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 2
• Strony: 621--634
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Shadfar M.

• School of Railway Engineering, Iran University of Science and Technology, Tehran, Iran

autor

Molatefi H.

• School of Railway Engineering, Iran University of Science and Technology, Tehran, Iran

Bibliografia

• 1. Archives of the National Railway Organization of I.R.Iran, Freight Wagons Division
• 2. Braghin F., Lewis R., Dwyer-Joyce R.S., Bruni S., 2006, A mathematical model to predict railway wheel profile evolution due to wear, Wear, 261, 1253-1264
• 3. Enblom R., Berg M., 2005, Simulation of railway wheel profile development due to wear-influence of disc braking and contact environment, Wear, 258, 1055-1063
• 4. Hosein Nia S., 2011, Dynamics Modeling of Freight Wagons, Master’s Degree Thesis, Department of Mechanical Engineering, Blekinge Institude of Technology, Karlskrona, Sweden
• 5. International Heavy Haul Association (2001), Guidelines to best practices for heavy haul railway operations: wheel and rail interface issues, 2808 Forest Hills Court Virginia Beach, Virginia 23454 USA
• 6. Jendel T., 2002, Prediction of wheel profile wear-comparisons with field measurements, Wear, 253, 89-99
• 7. Jin Y., Ishida M., Namura A., 2011, Experimental simulation and prediction of wear of wheel flange and rail gauge corner, Wear, 271, 259-267
• 8. Kalousek J., 2005, Wheel/rail damage and its relationship to track curvature, Wear, 258, 1330-1335
• 9. Lewis R., Olofsson U., 2009, Wheel-Rail Interface Handbook, CRC Press, Boca Raton, Boston, New York, Washington, DC
• 10. Pombo J., Ambrosio J., Pereira M., Lewis R., Dwyer-Joyce R., Ariaudo C., Kuka N., 2011, Development of a wear prediction tool for steel railway wheels using three alternative wear functions, Wear, 271, 238-245
• 11. Rail Safety and Standards Board (2002), Feasibility of reducing the number of standard wheel profile designs, Report No. ITLR/T11299/001
• 12. Telliskivi T., Olofsson U., 2004, Wheel/rail wear simulation, Wear, 257, 1145-1153
• 13. Universal Mechanism User’s Manual (2012), Railway wheel and rail profile wear prediction module, UM Laboratory
• 14. Xie G., Iwnicki S.D., 2008a, Calculation of wear on a corrugated rail using a three-dimensional contact model, Wear, 265, 1238-1248
• 15. Xie G., Iwnicki S.D., 2008b, Simulation of wear on a rough rail using a time-domain wheel-track interaction model, Wear, 265, 11/12, 1572-1583
• 16. Zakharov S., Zharov I., 2002, Simulation of mutual wheel/rail wear, Wear, 253, 100-106
• 17. Zobory I., 1997, Prediction of wheel/rail profile wear, Vehicle System Dynamics, 28, 221-259

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)