Because the rolling behavior of a car with a V2 term is described by a non-linear differential equation, it had been assumed that no closed-form solution existed and that we would have to use a numerical integration procedure (e.g. Runge-Kutta) to solve the associated differential equation. Using a closed-form solution in PROFILE and SPEEDCON allows them to be an order of magnitude faster in running time as compared to using a numerical integration procedure. However, it now appears that even with a V2 term, there does exist a closed-form solution for the associated differential equation. The derivation of velocity and position as a function of time is the focus of this Informal Note.
The residual stresses in rails produced by rolling cycles are studied experimentally by moire interferometry. The dissection technique is adopted for ...
This paper describes a planar or two-dimensional model toexamine the gross motions of rail cars in a generalized trainderailment. Three coupled, secon...
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