Automated and manual riveting are usual assembly processes in aerospace metallic structures manufacturing such as fuselage and wing panels. During the structural riveting, discrete geometrical deformations are generated due to large plastic displacements among rivets and the structural parts. That may result in dimensional or shape penalties on the segments assembly, and it may require additional production hours to correct the problems induced by the riveting process. The final product may still keep a slight shape deviation detectable by metrology systems (laser tracker, for example). Besides that, the riveting-induced deformation is still understudied in academics, and even within the aeronautical industry. This work is the continuation of some previous exploratory studies aimed to identify the main significant factors and contributors to the induced deformation phenomenon and mechanisms. In this work, an experimental analysis about four selected factors is accomplished: the riveting squeezing deformation level, the interference pin insertion, the sheet material anisotropy (grain direction), and the sheet package thickness for a protruding rivet head geometry. The experiment has shown that the squeezing deformation level and the sheet material anisotropy are major contributors. Also, a simplified algebraic formulation for the induced deformation is proposed and developed hereinafter.


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    Titel :

    Riveting-Induced Deformations on Aircraft Structures



    Erschienen in:

    Erscheinungsdatum :

    2015




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    55.50 Luftfahrzeugtechnik / 55.50
    Lokalklassifikation TIB:    770/7040



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    SOTO MARTINEZ JORGE JUAN / GARCIA AMADO JUAN FRANCISCO / GIMENEZ OLAZABAL MARTA et al. | Europäisches Patentamt | 2016

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