Dynamical attitude of non-linearly parameters of rail wheel contact on application of creep coefficient

Zulfiqar Ali Soomro

Abstract


Non linearity is the complicated problem for the dynamic modeling parameters solutions. The frequency and damping along with wavelength and particularly bogie wavelength are the fundamental terms to analyze the proper running of the railway vehicle wheelset on track. In this paper the brief dynamics of railway wheel contact is discussed and eigen values are generated and simulated to analyze difference depending upon both for higher and lower creep coefficient. Thus damping and frequency of wheelset is also simulated with relation to eigen values to observe their attitude. The wavelength is also compared with frequency and velocity of vehicle based upon both higher and lower creep coefficients along with eigen values. With the help of these wavelengths, a bogie wavelength relationship is developed and observed to detect the performance of railway vehicle wheelset.


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References


Alfi, S., and S. Bruni. "Estimation of long wavelength track irregularities from on board measurement." Railway Condition Monitoring, 2008 4th IET International Conference on. IET, 2008.

Manabe, K. "A hypothesis on a wavelength fixing mechanism of rail corrugation." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 214.1 (2000): 21-26.

Weston, P. F., et al. "Monitoring lateral track irregularity from in-service railway vehicles." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 221.1 (2007): 89-100.

Batten, R. D., et al. "Field and theoretical investigation of the mechanism of corrugation wavelength fixation under speed variation." Wear 271.1 (2011): 278-286.

Grassie, Stuart L., and John A. Elkins. "Traction and curving behaviour of a railway bogie." Vehicle System Dynamics 44.sup1 (2006): 883-891.

Madshus, C., and A. M. Kaynia. "High-speed railway lines on soft ground: dynamic behaviour at critical train speed." Journal of Sound and Vibration 231.3 (2000): 689-701.

Charles, G., R. Goodall, and R.Dixon, "Model-Based Condition Monitoring At the Wheel-Rail Interface." Vehicle System Dynamics, 46, 415-430 (2008)

Stefano Bruni , Roger Goodall , T. X. Mei , Hitoshi Tsunashima. “Control and monitoring for railway vehicle dynamics”. Vehicle System Dynamics Vol. 45, Iss. 7-8, 2007

Baeza, L., et al. "High frequency railway vehicle-track dynamics through flexible rotating wheelsets." Vehicle System Dynamics 46.7 (2008): 647-659.

Knothe, K., and A. Groß-Thebing. "Short wavelength rail corrugation and non-steady-state contact mechanics." Vehicle system dynamics 46.1-2 (2008): 49-66.

True, Hans, and Rolf Asmund. "The dynamics of a railway freight wagon wheelset with dry friction damping." Vehicle System Dynamics 38.2 (2002): 149-163.

Pombo, Joao, Jorge Ambrósio, and Miguel Silva. "A new wheel–rail contact model for railway dynamics." Vehicle System Dynamics 45.2 (2007): 165-189.

Lata, Michael. "The modern wheelset drive system and possibilities of modelling the torsion dynamics." Transport 23.2 (2008): 172-181.

Andersson, Clas, and Thomas Abrahamsson. "Simulation of interaction between a train in general motion and a track." Vehicle system dynamics 38.6 (2002): 433-455.

Popp, K., I. Kaiser, and H. Kruse. "System dynamics of railway vehicles and track." Archive of Applied Mechanics 72.11-12 (2003): 949-961.

Soomro.ZA, “Adhesion detection analysis By modeling rail wheel set dynamics under the assumption of constant creep coefficient”. Mechatronics, Electrical Power, & Vehicular Technology. Vol. 5, No 2 (2014). pp 99-106.

Soomro.ZA, "Analysis for Kinematic Modeling linearized Railway wheelset Dynamics." International Journal of Advances in Engineering Sciences 4.4 (2014): 1-6.

Soomro.ZA, " Computation of Slip analysis to detect adhesion for protection of rail vehicle and derailment." Journal of Applied and Computational Mechanics. Vol. 1, No. 3, (2015), pp-145-151




DOI: http://dx.doi.org/10.24949%2Fnjes.v9i1.162

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ISSN (Print): 2070-9900   ISSN (Online): 2411-6319