The need for increased transport speed on agricultural vehicles has accelerated the development of tractor suspension systems. The complexity of these systems has grown tremendously. When John Deere began developing an independent rear suspension as part of the Quad-Wheel Suspension (QWS) system for its 8000 series tractors, a decision was made to begin developing a test rig that would have the capability to adequately test the suspension. The complete test rig consisted of a seismically isolated pit that housed six 300 kN hydraulic actuators, two 80 kN actuators, and two 92.5 kJ load brakes. The test rig was designed with flexibility in mind. Wheelbase, tread width and mass of the vehicle are but a few of the reactor configuration variables. The test can also be set-up as one of three types: 4-post,- tire coupled, 6-post to tracks and 4-post - axle coupled. At the heart of the vehicle restraint systems a pneumatic air spring provides a variable resistive fore that can be tuned to particular vehicle being tested. Test control and system performance are shortly discussed in the paper.


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    Titel :

    Simulation testing at Deere: Chassis suspension test with drivetrain inputs


    Weitere Titelangaben:

    Fahrwerkstests bei Deere


    Beteiligte:
    Bering, Chris (Autor:in)


    Erscheinungsdatum :

    2004


    Format / Umfang :

    6 Seiten, 10 Bilder




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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