To verify the tasks of one of the Space Station manipulator, the Canadian Space Agency is developing a hardware-in-the-loop simulation system. A hydraulic robot manipulating mockup of the space payload reproduces the contact forces occurring during insertion and extraction. The control law allowing a good performance requires a very accurate torque tracking for the hydraulic robot. With good force sensing in the hydraulic cylinder the torque control can be achieved in constraint motion but not in free motion. A controller using a feedforward term to compensate the velocity related effect is presented and tested experimentally. It is shown that this controller achieves very good results both in free motion and in a constrained task.


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    Titel :

    Emulation of a space robot using a hydraulic manipulator on ground


    Beteiligte:
    Zhu, W.H. (Autor:in) / Piedboeuf, J.C. (Autor:in) / Gonthier, Y. (Autor:in)


    Erscheinungsdatum :

    2002


    Format / Umfang :

    6 Seiten, 14 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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