Roller dynamometer Munich-Freimann

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Model of the dynamometer
View from the repair shop

The Munich-Freimann roller test stand (at the time mostly Munich-Freimann roller test stand ) was a roller test stand for researching the wheel-rail system (especially high-speed traffic ) in Munich-Freimann .

Individual components (e.g. wheel sets, brakes and dampers) as well as vehicles could be tested on the test bench. It was also possible to simulate different running conditions (e.g. acceleration, braking and idling) as well as different track conditions (e.g. different coefficients of friction between wheel and rail, track position errors, etc.).

The approximately 10,000 m² facility was built on a fenced area of ​​the Munich-Freimann repair shop .

The plant was decommissioned around 2003. Today the British-international St. George's School is located on the site .

history

It was one of several projects that were carried out as part of an application to research the wheel-rail system in September 1971 at the Federal Ministry for Research and Technology by the companies Krupp Maschinenfabriken ( Essen ), Rheinstahl Henschel ( Kassel ), Maschinenbau Kiel ( Kiel ), Krauss-Maffei ( Munich ), the Deutsche Bundesbahn (represented by the Bundesbahn-Zentralamt Munich) and the Institute for Land Transport Routes of the Technical University of Munich . The test bench was designed to test mathematical simulations of vehicle behavior under realistic conditions.

In 1972, specifications were drawn up for a test stand on which single wheel sets and multi-axle drives were to be tested. The project was then approved by the Federal Ministry of Research.

In 1974 the production of the mechanical part started in Munich, the construction work began in October 1975. Also in 1975 the development of the software began. On November 2, 1977, the first expansion stage (with a test cell for a wheel set) was put into operation by Federal Research Minister Hans Matthöfer . The assembly of the second test cell started in the same year, the third and fourth were in production at that time.

In the final stage of development, vehicles with a length of up to 30 m, 4.3 m wide and 6.0 m high should be able to be tested. The drive power of the test stand should reach 2 × 1,200 kW. It was possible to change the track width between 1435 mm and 1676 mm. The test rollers, measuring 1400 mm in diameter, on which the drives were stored, could reach up to 1900 revolutions per minute, corresponding to a peripheral speed of 500 km / h. In the final stage, six test cells with two test rollers each should be available and vehicles with up to six axles should be able to be examined.

In April 1982, test vehicle 1 was the first four-axle vehicle to be placed on the roller dynamometer and a speed of 500 km / h was simulated. At the beginning of 1983, the 182 001 was the first to test a complete locomotive.

The plant was completely modernized in 1994.

In autumn 2003, Deutsche Bahn announced that it would close the roller dynamometer at the end of the year due to insufficient capacity utilization. Previous attempts by Deutsche Bahn to maintain the test facility as part of a cooperation with industrial companies have failed, according to the company.

literature

  • Johann Peter Blank and Theo Rahn (editors): Railway technology. Development and Outlook. Hestra Verlag Darmstadt 1982. ISBN 3-7771-0169-9 . Page 251 f.
  • Theo Rahn, Hubert Hochbrück and Friedrich W. Möller (editors): ICE. Train of the future. Hestra Verlag Darmstadt 1985. ISBN 3-7771-0192-3 . Pages 49 to 53.

Individual evidence

  1. ↑ a b c d e f g Karlheinz Althammer: Driving while stationary: Rolling test stand in Munich-Freimann . In: Hans Matthöfer (ed.): Technologies for rail systems , Umschau-Verlag, Frankfurt am Main 1977, ISBN 3-524-10019-8 ( research current ), pp. 67-82
  2. ↑ a b c Message roll test stand before the end . In: Eisenbahn-Revue International , issue 11/2003, ISSN  1421-2811 , p. 474.
  3. ↑ Without an author: The further plans of the Neue Bahn . In: Bahn-Special , Die Neue Bahn . No. 1, 1991, Gera-Nova-Verlag, Munich, p. 78 f.
  4. ↑ First tests with a locomotive on the rolling test rig . In: Die Bundesbahn , 5/1983, p. 338 f.
  5. ↑ The research and technology center of DB AG . In: Eisenbahn-Revue International , Issue 4, 1999, ISSN  1421-2811 , p. 166 f.

Coordinates: 48 ° 11 ′ 55.2 "  N , 11 ° 36 ′ 33.8"  E