Bombardier's FlexxTronic technology includes roll compensation and ARS (active radial steering). The performance characteristics of roll compensation systems include higher speed, lower wear and longer life. It can also be applied in double deck trains. Safety can also be enhanced through fail-safe behaviour, so that if either individual components or the entire system fails, the system automatically,falls back into a safe state without additional active elements. Active wheelset steering reduces or even eliminates the creep between wheel and rail compared with a conventional underframe, thereby addressing the principal contributors to both rail surface damage and rail wear. In addition, curve squeal is virtually eliminated. With the relatively stiff axle guidance of conventional bogies, wheel/rail forces vary significantly between a bogie's leading and trailing axles The principle benefits of FlexxTronic ARS are approximately 1.5% of total energy savings of the train, up to 4dBA noise reduction in the car body, around 25% longer wheel life and a reduction in train weight of about 3 tonnes. A decrease in wheel wear increases the interval between wheel turning by at least 25%, with two wheel changes less. An optional wear management programme can be implemented to increase wheel life further and to prevent localised wear on the wheel. The programme uses the ability to steer actively to create even wheel wear. Taking into account all cost factors for ARS, one can expect a return on investment of around two years.


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    Title :

    Increasing capacity: a track-friendly solution


    Contributors:

    Published in:

    Publication date :

    2010


    Size :

    3 Seiten, 6 Bilder


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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