Leading societies to a low carbon future, Alstom develops and markets mobility solutions that provide the sustainable foundations for the future of transportation. Alstom’s product portfolio ranges from high-speed trains, metros, monorail and trams to integrated systems, customised services, infrastructure, signalling and digital mobility solutions. Alstom has 150,000 vehicles in commercial service worldwide.
See FISITA Library items from ALSTOM
Ms. Raafa Al Kaderi, PhD student, IMT Nord Europe; Dr. Asma Grira, Post-doc, IMT Nord Europe; Ing. Marina Jamar, Engineer, IMT Nord Europe; Dr. Laurent Alleman, Assistant Professor, IMT Nord Europe; Dr. Esperanza Perdrix, Assistant Professor, IMT Nord Europe; Dr. Edouard Davin, Assistant Professor, Centrale Lille; Dr. Alexandre Mege-Revil, Assistant Professor, Centrale Lille; Ing. Marie-Jeanne Robert, Engineer, Alstom; Prof. Dr. Yannick Desplanques, Professor, Centrale Lille; Prof. Dr. Alexandre Tomas, Professor, IMT Nord Europe
Mr. Sylvain Delattre, PhD Student, Alstom Flertex SAS; Dr. Anne-Lise Cristol, Lecturer, Ecole Centrale de Lille; Prof. Philippe Dufrénoy, Professor, Polytech Lille; Prof. Yannick Desplanques, Professor, Ecole Centrale de Lille; Dr. Michèle Henrion, R&D and Application Engineering Manager, Alstom Flertex SAS
Rail tribology: NVH
Video + Slides
Mr. Denis Emorine, ALSTOM, GERMANY
All train manufacturers have one day experience squealing noise issue by braking in the stations. This noise could be high frequency or low frequency. It is in any case an issue when it’s disturbing noise (in the human ear frequency).
This issue causes disturbance for the population leaving close to the railway stations and it’s taken seriously into consideration in the recent project: for instance, in Sweden.
To avoid or reduce this noise, what are the possible levers for it? What are the effective influence of each levers on the noise? It’s always a fine compromise to find between wear (LCC), performance (thermal) and noise.
Therefore, the presentation will target to provide actual answers on a real example experienced on Nordic trains in Sweden by ALSTOM Transport.
It will show:
- the initial situation of each Swedish fleet and its chronology (wear, noise),
- the corrective actions chosen within the project developments,
- the issue encountered with the correctives actions,
- the experimental researches to identify where come from the noise generation (18 different pad variants, different caliper fixations, SW action on the brake force…),
- the analyze of the results with their weighting on interest/cost and beside requirements (wear/performance),
- the final retained solutions,
- Actual final accepted end solution.
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