The design and testing of a six degree of freedom isolation system using viscous damping is presented. To avoid interactions with the reaction wheel's magnetic bearing and output torque control loops, an isolation system is required to provide very specific and tightly controlled values for the natural frequency and damping (Q) in all degrees of freedom. Low natural frequency requirements and launch loads, together with 1-G testability, require the isolators to be capable of unusually large deflections. Analysis shows that the combination of requirements can be met with a symmetric arrangement of three isolator pairs - a hexapod. A prototype system has been fabricated. A design description and test results are included.


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    Title :

    A multiaxis isolation system for the French Earth observation satellite's magnetic bearing reaction wheel


    Additional title:

    Mehrachsiges Isolationssystem für das Magnetlager-Reaktionsrad des französischen Erdbeboachtungssatelliten


    Contributors:
    Cunningham, D. (author) / Davis, P. (author) / Schmitt, F. (author)


    Publication date :

    1992


    Size :

    6 Seiten, 9 Bilder, 3 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English