High Critical Speed of a Four-Axle FreightWagon With UIC Link Suspension on Straight Track

• Autorzy: Matej J.
• Języki publikacji: EN

Abstrakty

EN

In the paper, two design propositions of increasing the critical speed of a four-axle freight wagon with UIC link suspension on straight track were analyzed. First of all, the reference wagon model with the UIC link suspension was prepared. Next, the hydraulic dampers were attached to the primary and secondary suspension of the reference wagon model. Finally, a light mechanical system, elastically connecting two wheelsets beyond a bogie frame, was examined. Linear mathematical models of such wagons were built. Correct values of stiffness and damping coefficients, suitable for UIC link suspensions, were used. Numerical results were analyzed in terms of the lateral stability and critical speed of a freight wagon. The author’s own procedures, according to the eigenvalues and eigenvectors of the state matrix of railway wagon models, were used. To assess the critical speed of freight wagon models the computer simulations were executed using the Fortran F95 compiler.

Słowa kluczowe

EN

freight wagon; UIC link suspension; critical speed

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2017
• Tom: Vol. 41, No. 2
• Strony: 31--48
• Opis fizyczny: Bibliogr. 7 poz., rys., schem., tab.

Twórcy

autor

Matej J.

• Warsaw University of Technology, Institute of Vehicles

Bibliografia

• 1. Garg, V, K. and Dukkipati, R, V. (1984). Dynamics of railway vehicle systems. Orlando, USA: AcademicPress.
• 2. Jönsson, P.-A., Andersson, E., and Stichel, S. (2006). Experimental and theoretical analysis of freight wagon link suspension. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 220(4):361–372.
• 3. Kalker, J. J. (2013). Three-dimensional elastic bodies in rolling contact, volume 2. Springer Science & Business Media.
• 4. Matej, J. (2011). A new mathematical model of the behaviour of a four-axle freight wagon with uic single-link suspension. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 225(6):637–647.
• 5. Piotrowski, J. (2003). Model of the uic link suspension for freight wagons. Archive of Applied Mechanics, 73(7):517–532.
• 6. Piotrowski, J. and Matej, J. (2004). Stability of motion on straight track of the tank wagon with h665-iir bogies. Internal study. Warsaw University of Technology, Institute of Vehicles, Warsaw.
• 7. Wickens, A. (2003). Fundamentals of rail vehicle dynamics: guidance and stability. Swets & Zeitlinger Publishers, Lisse.