This paper discusses an investigation on dynamic behaviour of structures in microgravity conditions. This research is done in the framework of an ESA/PRODEX project. A test structure is defined that is representative for real spacecraft components. The definition of the structure is such that the experiment can focus on actual differences in structural behaviour. To cover a wide range of structural components, different types of materials and different types of connections are used. Experimental modal analysis is performed in 1 g gravity and in microgravity conditions. Microgravity research is done in parabolic flight with a research aircraft. The structure is free floating inside the aircraft. Finite element models are built for each of both conditions, for all different types of structures. Global conclusions compare structural behaviour in both conditions. Guidelines for appropriate finite element modelling are derived.


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    Title :

    Structural dynamic behaviour in microgravity conditions


    Additional title:

    Das dynamische Verhalten von Strukturen bei reduzierter Schwerkraft


    Contributors:
    Olbrechts, T. (author) / Vandepitte, D. (author) / Bielen, P. (author) / Moens, D. (author)


    Publication date :

    1998


    Size :

    7 Seiten, 11 Bilder, 6 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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