
Braking Questions - Comparison of bench and in-line drag braking test results
NORMA vydaná dňa 1.8.2013
Označenie normy: UIC B126/DT429-1ed.
Dátum vydania normy: 1.8.2013
Počet strán: 92
Približná hmotnosť: 307 g (0.68 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy UIC
This report compares thermal stresses (measured on the running surface of wagon wheels) during in-line tests using K and LL type brake blocks on slopes on the Saint Gothard and Tauern lines, with results obtained from bench tests. Various braking modes taken from UIC Leaflet 541-1 were applied for the bench tests, in addition to braking modes based on those used on slopes the during in-line tests (saw-tooth braking, constant pressing force and constant power). Other tests were carried out to simulate blocked brakes, which were compared with results from in-line tests on a test loop line and validated.
All forces being equal, the temperatures obtained both on the test bench and in-line with the same material, were very close.
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