Abstract
This contribution presents the idea of model-based model validation. For this purpose the PI-Observer as core of a validation scheme is introduced. Task of this observer scheme is the estimation of unknown, unmeasured interaction effects within the considered system. Therefore it is assumed, that the whole system is divided in known and unknown parts. Estimating dynamic interaction effects inner ratios within the unknown part are reconstructed. This model-based reconstruction scheme can be used for validation purposes if real measurements are available.
As example the adhesion models are validated. The contact force highly depends on the kinematical contact situation and additionally on external effects. By observing the contact situation by the actual adhesion characteristic between rail and wheel can be determined.
As a first application example the simulations of the driven wheel show the strategy and the efficiency of this approach.
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Söffker, D., Kirchenkamp, S., Müller, P.C. (2003). Model-Based Validation within the Rail-Wheel-Subgrade Modeling. In: Popp, K., Schiehlen, W. (eds) System Dynamics and Long-Term Behaviour of Railway Vehicles, Track and Subgrade. Lecture Notes in Applied Mechanics, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45476-2_13
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DOI: https://doi.org/10.1007/978-3-540-45476-2_13
Publisher Name: Springer, Berlin, Heidelberg
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