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| Titel: |
Apporoximation of contact geometry in the dynamical simulation of wheel-rail |
| Auteur: |
Arnold, M. Netter, H. |
| Verschenen in: |
Mathematical and computer modelling of dynamical systems |
| Paginering: | Jaargang 4 (1998) nr. 2 pagina's 162-184 |
| Jaar: |
1998 |
| Inhoud: |
Models for the geometrical contact of wheel and rail are a basic component of multibody system (MBS) models for wheel-rail systems. Approximations are used to get sufficiently differentiable contact conditions that can be evaluated efficiently. We discuss an approximation that is essentially based on polynomial 2D-tensorproduct splines and minimizes a functional that combines a weighted least squares approximation of a rigid contact model with a smoothing term. An efficient algorithm to compute the tensorproduct spline is developed, the parallelization on a cluster of workstations is discussed. We report on results of both the sequential and the parallel algorithm and give simulation results for a rigid wheelset on a straight track. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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