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Structural and Multidisciplinary Optimization

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01.07.2010 | Research Paper

On the layout optimization of 2D skeletal structures under a single displacement constraint

verfasst von: Demetrios T. Venetsanos, Christopher G. Provatidis

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 1/2010

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Abstract

The present paper revisits the problem of minimizing the weight of 2D skeletal structures under a single displacement constraint. The contribution lies on the development of an optimization procedure implementing three new features. The first feature is the formulation of a new and efficient Optimality Criterion-type redesign scheme where no Lagrange multipliers are required. The second feature is the introduction of a new categorization of the structural elements according to which members simultaneously being force-passive and area-active may lead search methods to local minima. The third feature is the application of a typical line-search optimization method on the structural elements diagnosed as force-passive/area-active so that their contribution to the structural weight is minimized and a better design is obtained. The validity of the proposed optimization procedure was successfully tested for determinate and indeterminate skeletal structures.

Vorheriger Artikel Michell-like 2D layouts generated by genetic ESO

Nächster Artikel Wind load modeling for topology optimization of continuum structures

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Titel: On the layout optimization of 2D skeletal structures under a single displacement constraint
verfasst von: Demetrios T. Venetsanos
Christopher G. Provatidis
Publikationsdatum: 01.07.2010
Verlag: Springer-Verlag
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 1/2010
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-009-0472-3

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