Computational methods are described to predict wheelset steady-state curving performance. A methodology is developed to compute various performance measures including wheelset lateral excursion, angle of attack, lateral and vertical wheel-rail forces as well as wheel-rail wear indices. A discussion of the required degrees of freedom, appropriate coordinate systems, and creep force representation of a nonlinear wheelset model is presented. In addition, assumptions required to characterize single-point and two-point wheel-rail contact are described. Equilibrium conditions for a wheelset result in coupled sets of nonlinear algebraic equations, which are solved using nested iteration loops. Using this numerical solution procedure, typical performance results are presented.
Computational methods for rail vehicle steady-state curving analysis
Rechenverfahren fuer die Untersuchung der stetigen Kurvenfahrt bei Eisenbahnfahrzeugen
Computational Methods in Ground Transportation Vehicles. The Winter Annual Meeting of the ASME ; AMD-50 , Nov ; 153-179
1982
27 Seiten, 15 Bilder, 26 Quellen
Conference paper
English
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