FG Schienenfahrzeuge

6 Items

Recent Submissions
Effect of suspension system in the lateral stability of railway freight trucks

Molatefi, Habibollah ; Hecht, Markus ; Kadivar, M. H. (2007)

In the current research an empty freight wagon with BA652 and an old BA661 bogies have been modelled. Non-linear creep forces with spin moment between wheel and rail have been used and also all impacts and friction forces have been modelled. The characteristics of primary suspension systems for BA652 and an old BA661 have been evaluated by means of test. Non-linear equations of motions and kine...

Critical speed and limit cycles in the empty Y25-freight wagon

Molatefi, Habibollah ; Hecht, Markus ; Kadivar, M. H. (2006)

In this research, an empty freight wagon with Y25 bogies have been modelled. Non-linear creep forces with spin moment between wheel and rail have been used, and also all impacts and friction forces have been modelled. Non-linear equations of motion and kinematical constraints have been solved in time domain, and limit cycles, saddle nodes, and critical speeds have been shown. Both primary and s...

Wear and energy-saving freight bogie designs with rubber primary springs: principles and experiences

Hecht, Markus (2009)

The traditional radial steering bogie with swing hanger links is known to be track-friendly but heavy, and expensive in investment and maintenance costs. Whereas the actual bogies with longitudinal stiff axle guidance such as Y25 cause severe wear on wheels and rails in curves, and also develop high running resistance in curves. Bogies with rubbers springs like double rubber ring spring (DRRS),...

European freight vehicle running gear: Today's position and future demands

Hecht, Markus (2001)

The running gear of most of the rail freight vehicles in operation today tends to be built to very old designs. The running gear for new freight rolling stock and, in particular, new types of bogie must have significantly improved performance if they are to satisfy the demands of all the stakeholders associated with the railways. Improved performance in this context means reduced inspection tim...

Zukunftskonzept virtuelle Kupplung

Rüsch, Franziska (2018)

Die betriebliche baureihen- und herstellerübergreifende Kuppelbarkeit (Multikuppelbarkeit) von Triebfahrzeugen im Schienenpersonennahverkehr (SPNV) erhöht die betriebliche Flexibilität im Fahrzeugeinsatz und verbessert dessen Wirtschaftlichkeit. Für die Gestaltung eines zukunftsfähigen SPNV gilt die Multikuppelbarkeit daher, insbesondere bei den Eisenbahnverkehrsunternehmen und Aufgabenträgern,...

Validation of simulation models in the context of railway vehicle acceptance

Polach, Oldrich ; Böttcher, Andreas ; Vannucci, Dario ; Sima, Jürgen ; Schelle, Henning ; Chollet, Hugues ; Götz, Gernoth ; Garcia Prada, Mayi ; Nicklisch, Dirk ; Mazzola, Laura ; Berg, Mats ; Osman, Martin (2015)

The evaluation of a reliable validation method, criteria and limit values suitable for model validation in the context of vehicle acceptance was one of the objectives of the DynoTRAIN project. The presented investigations represent a unique amount of testing, simulations, comparisons with measurements, and validation evaluations. The on-track measurements performed in four European countries in...