A simplified pneumatic model for air brake of passenger trains
Braking system performance is relevant for both railway safety and network optimization. Most trains employ air brake systems; air brake systems of freight trains mostly cannot achieve a synchronous application of brake forces, which is usually customary for passenger trains. The paper generalizes a previous air brake pneumatic model to passenger trains and describes the needed modifications. Among them, the way the pressure reduces in the brake pipe is generalized. Moreover, this paper reports an analytical bi-dimensional function for calculating the nozzle diameter equivalent to the electro-pneumatic (EP) or the electronically controlled pneumatic (ECP) brake valve as a function of the wagon length and the time to vent the brake pipe locally. The numerical results of the new model are compared against several experimental tests of high-speed passenger trains of Trenitalia, namely ETR500 and ETR1000. The model is suitable to be integrated into the UIC software TrainDy, aiming to extend its computational field to passenger trains and to simulate the safety of trains during a recovery.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/26624745
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Supplemental Notes:
- © The Author(s) 2023.
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Authors:
- Cantone, Luciano
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0000-0001-7416-1040
- Ottati, Andrea
- Publication Date: 2023-6
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 145-152
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Serial:
- Railway Engineering Science
- Volume: 31
- Issue Number: 2
- Publisher: Springer Nature
- ISSN: 2662-4745
- Serial URL: https://www.springer.com/journal/40534
Subject/Index Terms
- TRT Terms: Air brakes; Braking performance; Passenger trains; Vehicle dynamics
- Subject Areas: Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 01886810
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 29 2023 3:22PM