Assembly variation is inevitable in aeronautical thin-walled structure (ATWS) assembly, especially in structures joined with "C-type" automated riveting system (CARS). The variation propagates along the assembly process flow and will influence final product performance such as dimensional quality and fatigue durability. This paper represents a new variation model of ATWS with multi-state riveting. Firstly, a novel multi-state process of ATWS riveting with CARS called PDJR to PDRR (P to P) is developed and it contains two stages and eight states. Secondly, based on the P to P process, the variation model is divided into three sub-models (feature, displacement and propagation) to represent the assembly variation of ATWS multi-state riveting. For the feature sub-model, three important features are discussed, and the geometric and topological information is represented by a hierarchical method. For the displacement sub-model, the variation of eight-state in P to P is divided into four types, and the displacement of each type is analyzed separately according to the coordinate transformation and finite element method (FEM). For the propagation sub-model, a translation matrix considering the disturbance factor of every state is developed to obtain the final variation. Lastly, a multi-state riveting process of a wing panel which is made up of a skin and four stringers is modeled as a case study. The FEM is integrated into the Monte Carlo simulation (MCS) to analyze the variation, and the result proves that the proposed variation modeling of ATWS multi-state riveting can solve the problem of variation analysis in ATWS multi-state riveting efficiently.


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    Titel :

    Variation modeling of aeronautical thin-walled structures with multi-state riveting


    Beteiligte:
    Cheng, Hui (Autor:in) / Li, Yuan (Autor:in) / Zhang, Kai-fu (Autor:in) / Mu, Wei-qiang (Autor:in) / Liu, Bo-feng (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2011


    Format / Umfang :

    15 Seiten




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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