The increased lifetime demanded of state-of-the-art telecommunications satellites has necessitated the tribological redesign of an electric thruster pointing mechanism which is currently used in-orbit on the scientific ESA telecom satellite ARTEMIS. The change from dry to liquid lubrication will be described and results of in-vacuo tests under oscillatory motion will be presented. The tests were performed both at Austrian Aerospace (Austria) and at ESTL (UK). Results of strip-down inspections will be described and the lessons learned stated.


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    Title :

    Roller screw lifetime under oscillatory motion: From dry to liquid lubrication


    Contributors:
    Falkner, M. (author) / Nitschko, T. (author) / Supper, L. (author) / Traxler, G. (author) / Zemann, J.V. (author) / Roberts, E.W. (author)


    Publication date :

    2003


    Size :

    5 Seiten, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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