A particle damper can be defined as a container partially filled with particles (eg sand, beads), which is attached to or within a vibrating structure. There is a need for a methodology to design and to qualify a "soft" damping particle adapted to space applications. The aim of this work is to make 'space useable' damping particles without degrading their performances. It induces the elaboration of a methodology in order to select a material with high damping properties and in considering environmental specifications (like vacuum and high temperatures) and sphere manufacturing constraints. The proposed paper presents the dedicated and original methodology that has been developed and which is based on a multiscale approach. This detailed semi-empirical approach offers the advantage to highlight at small scale the influence of parameters such as the particles characteristics (material, size) or the excitation level on the damping properties of the specimens. With this method, we intend to increase the chance to qualify for space missions new particles dampers by taking into account at the same time their damping properties, outgassing behavior and manufacturing cycle.


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    Title :

    Material selection for soft particle dampers


    Additional title:

    Materialauswahl für Dämpfer aus weichen Partikeln


    Contributors:
    Fascio, V. (author) / Aridon, G. (author) / Almeida, O. de (author) / Griffith, S. (author) / Michon, G. (author) / Lavielle, D. (author) / Eck, J. (author) / Toufine, A. (author)


    Publication date :

    2012


    Size :

    6 Seiten, 11 Bilder, 1 Tabelle, 13 Quellen




    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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