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Structural and Multidisciplinary Optimization
Published in: Structural and Multidisciplinary Optimization 1/2010

01-07-2010 | Research Paper

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

Authors: Demetrios T. Venetsanos, Christopher G. Provatidis

Published in: Structural and Multidisciplinary Optimization | Issue 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.
previous article Michell-like 2D layouts generated by genetic ESO
next article Wind load modeling for topology optimization of continuum structures

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Metadata
Title
On the layout optimization of 2D skeletal structures under a single displacement constraint
Authors
Demetrios T. Venetsanos
Christopher G. Provatidis
Publication date
01-07-2010
Publisher
Springer-Verlag
Published in
Structural and Multidisciplinary Optimization / Issue 1/2010
Print ISSN: 1615-147X
Electronic ISSN: 1615-1488
DOI
https://doi.org/10.1007/s00158-009-0472-3

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