Forschung am Oberbau

Das Institut befasst sich in der Forschung mit:

  • Konstruktion und Bemessung von Oberbaukomponenten
  • Zusammenspiel der Komponenten im System
  • Rad-Schiene-Kontakt
  • Elastizität im Oberbau
  • Weichen, Übergänge, Isolierstöße, ...
  • Validierung von Simulationen im Feld
  • Bestimmung von Kräften, Bewegungen, Beschleunigungen, ..., im Gleis
  • Aufbau eines Labors zur Komponenten und Systemprüfung

Derzeit laufende Forschungsprojekte am RID

Acquisition of measurement sensors, measurement amplifiers, laboratory measurement technology and measurement peripherals.
The aim of the service is the scientifically substantiated verification of the validity of the the cross-track displacement limit value according to Prud'homme for the roadworthiness approval of rail vehicles rail vehicles, in particular for curves with radii of less than 250m ('test area 5'). With theoretical and experimental proofs, the limit value is compared with the state of the state of the art in track design and maintenance, and its validity is verified. verified. A modification of this limit value corresponding to today's limit value is being developed.
The project is part of a Comet-project, with the vision of a fully digitalized, highly performed and extremely resilient Railway system. In this project method development for quantifying the overall structural time-dependent behaviour in respect to its long-term serviceability will be investigated. This requires hybrid models for large-scale simulations based on historic and current load data of a particular assed, as basis for predictive maintenance.
The effectiveness and serviceability of the installed ZWP is to be verified by means of subsidence measurements in the open area as well as in the tunnel. In addition, the measured ZWP are to be removed afterwards in order to subject them to static and dynamic stiffness measurements in the laboratory. Since the initial tolerances can be up to cstat +/- 15%, discussions must be held in advance with the manufacturer and the available data clarified. On the basis of these findings from laboratory and track measurements and the comparison with the existing measurement data of the EM250, a recommendation for the age-related replacement of these elastic elements is to be made.