Object-oriented structural and geometric analysis methods for truss structures are proposed. The methods are based on the iterative relaxation of nodal unbalanced forces by moving the nodes. The entities appeared in truss analysis are modelled as classes, and their class hierarchy is established. The knowledge about a truss node, a truss member, a material and a sectional shape of the member are exceed and constructed as a knowledge base in an object-oriented manner. The object-oriented structural analysis is found to be valid for material and geometric nonlinearities, and the object-oriented geometric analysis where a kinematic problem is converted into a problem for a force equilibrium at the nodes is also found to be effective for determining the geometry of variable geometry trusses. The whole system is written in an object-oriented language, Smalltalk, and several results on structural and geometric analysis are presented. The speed of the computation is discussed along with the size of the structures and the over-relaxation factor. The extension of the knowledge base is also discussed.


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    Titel :

    Object-orientied approach to modeling and analysis of truss structures


    Weitere Titelangaben:

    Objektorientiertes Verfahren für die Modellierung und Analyse von Fachwerkstrukturen


    Beteiligte:
    Miki, M. (Autor:in) / Murotsu, Y. (Autor:in)

    Erschienen in:

    AIAA Journal ; 33 , 2 ; 348-354


    Erscheinungsdatum :

    1995


    Format / Umfang :

    7 Seiten, 14 Bilder, 1 Tabelle, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





    Object-oriented approach to modeling and analysis of truss structures

    Miki, Mitsunori / Murotsu, Yoshisada | AIAA | 1995


    OBJECT-ORIENTED APROACH TO MODELING AND ANALYSIS OF TRUSS STRUCTURES

    MIKI, MITSUNORI / MUROTSU, YOSHISADA | AIAA | 1993


    Distributed Parameter Modeling of Repeated Truss Structures

    Wang, H. / National Aeronautics and Space Administration | British Library Conference Proceedings | 1994


    Comparison of Truss Structures Having Self-similarity with Conventional Truss Structures

    Kishimoto, N. / Natori, M. C. / Nihon Koku Uchu Gakkai | British Library Conference Proceedings | 2004