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Structural and Multidisciplinary Optimization

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01-03-2011 | Research Paper

Global laminate optimization on geometrically partitioned shell structures

Author: David Keller

Published in: Structural and Multidisciplinary Optimization | Issue 3/2011

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Abstract

A method aimed at the optimization of locally varying laminates is investigated. The structure is partitioned into geometrical sections. These sections are covered by global plies. A variable-length representation scheme for an evolutionary algorithm is developed. This scheme encodes the number of global plies, their thickness, material, and orientation. A set of genetic variation operators tailored to this particular representation is introduced. Sensitivity information assists the genetic search in the placement of reinforcements and optimization of ply angles. The method is investigated on two benchmark applications. There it is able to find significant improvements. A case study of an airplane’s side rudder illustrates the applicability of the method to typical engineering problems.

previous article An enhanced charged system search for configuration optimization using the concept of fields of forces

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Title: Global laminate optimization on geometrically partitioned shell structures
Author: David Keller
Publication date: 01-03-2011
Publisher: Springer-Verlag
Published in: Structural and Multidisciplinary Optimization / Issue 3/2011
Print ISSN: 1615-147X
Electronic ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-010-0576-9

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