Vehicle service loads need to be measured under actual driving conditions in order to ascertain the strength and durability requirements for customer usage. However, because road-load data are influenced by the vehicle category and specifications of a vehicle, it takes an enormous amount of time and labor to compare them with existing data and analyze the relationship between service loads and vehicle specifications. This paper presents a study concerning the use of the frequency response function, which differs from one vehicle to another, as a means of predicting the response of a particular target vehicle based on the road-load data, which are input by unevenness of roads, measured for a baseline vehicle. The results predicted in bench tests showed a margin of error of around ±20%, making them sufficiently accurate for practical use. Rice's formula was applied as an index for evaluating the prediction accuracy of the power spectral density. A method is also described for using this formula to predict the frequency even in the case of data which are not normal distributions as a whole.


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    Titel :

    A Study on Estimation of Vertical Road-load Inputs using the Vehicle Frequency Response Function


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Watanabe, Isao (Autor:in) / Terada, Kouji (Autor:in) / Haraguchi, Masaki (Autor:in) / Yamakawa, Shinji (Autor:in) / Nakamaru, Toshiaki (Autor:in) / Uchiyama, Yuji (Autor:in)

    Kongress:

    International Body Engineering Conference & Exposition ; 2003



    Erscheinungsdatum :

    2003-10-27




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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