Pislaru, Crinela and Anyakwo, Arthur (2014) On Quasi-Newton Method Applied To 2D Wheel-Rail Contact Models. International Journal of Engineering Research & Technology, 3 (3). pp. 1962-1971. ISSN 2278-0181
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Reliable and proficient numerical methods are required to determine the contact points between wheel and rail. This paper presents the use of Quasi-Newton method for determining the solution of a reduced number of non-linear wheel-rail contact geometry equations that arise as a result of the interaction of wheel and rail on the track.
A novel two dimensional (2D) wheel-rail contact model is developed by using the wheel-rail contact co-ordinates to calculate the wheel-rail normal contact forces without approximating the contact angle. The simulated results are stored in a lookup table and accessed during the simulation of the bogie dynamic behaviour thus reducing the computational time. The reduced number of non-linear wheel-rail contact geometry equations and employment of Quasi-Newton method enable the proposed 2D wheel-rail contact model to be used for fast and real time simulations of complex and non-linear wheel-rail contact mechanics.
|Uncontrolled Keywords:||wheel-rail interface; lateral displacement; yaw angle; wheel-rail contact model; railway vehicle dynamics; normal forces|
|Subjects:||T Technology > TJ Mechanical engineering and machinery|
|Schools:||School of Computing and Engineering
School of Computing and Engineering > Institute of Railway Research
 P. Kornerup and J.-M. Muller, “Choosing starting values for certain Newton–Raphson iterations,” Theoretical Computer Science, vol. 351, no. 1, pp. 101–110, Feb. 2006.
|Depositing User:||Crinela Pislaru|
|Date Deposited:||03 Apr 2014 15:46|
|Last Modified:||03 Apr 2014 15:51|
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