The critical weave mode oscillations of motorbikes, which occur in the high velocity domain can be damped by a steerable rear wheel, when this is turned around a suitable steering axis. On the hand of the one-wheel-drag-model it is shown, how this rear wheel steering axle has to be designed, in order to generate a steer angle by tire side force. This steer angle in turn increases the side force and therefore the weave mode damping ratio. Within the limits of usual dimensions of a motorbike, the construction of such a steering axle is only possible by using an adequate quadrilateral joint. The rear wheel steering mechanism was investigated with the help of a simulation model, based on the multi-body-formalism. A simulation of the driving behaviour showed the influence of the rear wheel steering angle upon the driving behaviour of a test motorbike. Final driving tests with a test motorbike equipped with the rear wheel steering system confirmed the usefulness of the chosen approach although there is a shortcoming in the design. The tests were carried out on a roller-test-stand and on a testing field.


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    Title :

    Investigation of motorcycles with a passive steered rear wheel


    Additional title:

    Die Untersuchung von Motorrädern mit einem passiv gelenktem Hinterrad


    Contributors:


    Publication date :

    1994


    Size :

    7 Seiten, 18 Bilder, 3 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Investigation of motorcycles with a passive steered rear wheel

    Teubert,C. / Willumeit,H.P. / Tech.Univ.Berlin,DE | Automotive engineering | 1994


    Investigation of Motorcycles with a Passive Steered Rear Wheel

    Teubert, C. / Willumeit, H.-P. / Society of Automotive Engineers of China | British Library Conference Proceedings | 1994


    Investigation of Motorcycles with a Passive Steered Rear Wheel

    Teubert, C. / Willumeit, H.-P. / Society of Automotive Engineers of China | British Library Conference Proceedings | 1994


    Investigation of Motorcycles with a Passive Steered Rear Wheel

    Teubert, C. / Willumeit, H.-P. / Society of Automotive Engineers of China | British Library Conference Proceedings | 1994


    Investigation of motorcycles with a passive steered rear wheel

    Teubert, C. / Willumeit, H.-P. / VDI; Gesellschaft Fahrzeug- und Verkehrstechnik | British Library Conference Proceedings | 1994