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Multi-objective optimization of free-form grid structures

Winslow, P. and Pellegrino, S. and Sharma, S. B. (2010) Multi-objective optimization of free-form grid structures. Structural and Multidisciplinary Optimization, 40 (1-6). pp. 257-269. ISSN 1615-147X.

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Computational modeling software facilitates the creation of any surface geometry imaginable, but it is not always obvious how to create an efficient grid shell structure on a complex surface. This paper presents a design tool for synthesis of optimal grid structures, using a Multi-Objective Genetic Algorithm to vary rod directions over the surface in response to two or more load cases. A process of grid homogenization allows the tool to be rapidly applied to any grid structure consisting of a repeating unit cell, including quadrilateral, triangular and double layer grids. Two case studies are presented to illustrate the successful execution of the optimization procedure.

Item Type:Article
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URLURL TypeDescription ReadCube access
Pellegrino, S.0000-0001-9373-3278
Additional Information:© 2009 Springer-Verlag. Received: 20 October 2008; revised: 22 December 2008; accepted: 7 January 2009; published online: 7 February 2009. We would like to acknowledge the financial support of the UK Engineering and Physical Sciences Research Council and of Buro Happold.
Funding AgencyGrant Number
Engineering and Physical Sciences Research Council (EPSRC)UNSPECIFIED
Subject Keywords:Structural optimization; Multiobjective; Grid shell; Free form structure; Homogenisation
Issue or Number:1-6
Record Number:CaltechAUTHORS:20091216-121728405
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Official Citation:Winslow, P., Pellegrino, S. & Sharma, S.B. Struct Multidisc Optim (2010) 40: 257. doi:10.1007/s00158-009-0358-4
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16997
Deposited By: Jason Perez
Deposited On:22 Dec 2009 21:27
Last Modified:03 Oct 2019 01:20

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