To improve ride comfort on train journeys, it is important to reduce the amplitude of lateral vibration acceleration. As a method for such a purpose, semi-active suspension has been proposed and substantially used. On the other hand, the longer distance of the train runs, the more severe wears are evident on wheel treads; an equivalent conicity becomes larger, which adversely affect the characteristics of vehicle dynamics. It is hence expected to improve ride comfort under vibrations by adequate semi-active control without depending on the equivalent conicity. A study under this research with a simulation model was made to the effect of the semi-active control for the equivalent conicity. We could verify that as the equivalent conicity becomes larger caused by longer distance of a train runs, the lateral relativity velocity between a car body and a bogie became smaller; a damping ratio by semi-active damper became smaller. As the result, it is conceivable that an impact accordingly decreases with the semi-active control.


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    Title :

    Study on the effect of semi-active control for equivalent conicity


    Contributors:
    Adachi, M. (author) / Shimomura, T. (author)


    Publication date :

    2007


    Size :

    6 Seiten, 4 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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