EIN NEUES MODELL FÜR DIE BESTIMMUNGEN DER GEOMETRISCHEN MASSTOLERANZEN IM EISENBAHNOBERBAU

Abstract

The movement of a railway vehicle is the most often replaced by the movement of its centre of mass. This results determining the tolerance of geometrical distortions of a railway track with a high grade of inaccuracy, which is not permissible. In order to evaluate exactly the vehicle movement on the one hand the vehicle must be interpreted as a system of points on the other hand, a natural triedron must be determined which follows the real movement of the vehicle so that its eigenvectors point always toward the geometrical axes of the railway carriage. The movement of a railway vehicle in the irregular track can be determined by simulation and it can be evaluated by mathematical models. In this way the tolerance of distortion values respecting to up-to-date theorems can be determined on the basis of reality simulating movement characteristics.