For investigation of curving behaviour with random track irregularities it is possible to use a statistical linearization method. Unlike on straight track the statistical linearization on curves depends on both the mean values and the variances and convariances of the response variables. The nonlinear contact geometry parameters occuring in the random differential equations of motion can be directly linearized. The nonlinear creep forces can only bee statistically linearized by using the step by step method. The approximate treatment of the coupling relations between creep forces and normal contact forces using quasistatic iteration method can obviously simplify the statistical linearizations of the nonlinear creep forces.
Statistical linearization of wheel/rail contact nonlinearities for investigating of curving behaviour with random track irregularities
Statistische Linearisierung der Nichtlinearitäten im Kontakt Rad/Gleis zur Untersuchung des Kurvenverhaltens mit beliebigen Streckenunregelmäßigkeiten
1996
15 Seiten, 9 Bilder, 2 Tabellen, 10 Quellen
Conference paper
English
British Library Conference Proceedings | 1996
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