Manual on a Swedish friction-measuring cart intended to be towed behind an ordinary motor vehicle and measure the friction between the wheels of a vehicle and the surface of the road. The cart is the BV 11, which is known as the 'skiddometer', and it was developed, step by step, from the BV 2, which was built in the mid-1950's for checking friction on airfield runways under snowy and icy conditions. In very general terms, the 'skiddometer' has two wheels coupled together by means of a gearing. The wheels have different peripheral speeds, and that fact enables the device to measure frictional drag. The manual discusses friction as it relates to roads and highways in considerable detail as far as theory is concerned. Also presented are: a detailed description of how the 'skiddometer' works; a detailed description of the 'skiddometer' itself and various pieces of supplementary equipment such as lights and reflectors, a device to lift the 'braking wheel' off the pavement when no measurements are being made, thus saving wear on that wheel, and a locking coupling which enables the other wheel to turn freely even though the 'braking wheel' tries to make it go faster than the 'skiddometer'. Maintenance of the BV 11 'skiddometer' is also described.


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    Titel :

    Manual on the BV 11 Friction-Measuring Vehicle (Friktionsmaetvagn BV11; Handbok)


    Beteiligte:
    E. Ohlsson (Autor:in)

    Erscheinungsdatum :

    1979


    Format / Umfang :

    92 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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