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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. http://resolver.caltech.edu/CaltechAUTHORS:20091216-121728405

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Abstract

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
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/s00158-009-0358-4DOIArticle
https://link.springer.com/article/10.1007%2Fs00158-009-0358-4PublisherArticle
http://rdcu.be/qKCkPublisherFree ReadCube access
ORCID:
AuthorORCID
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.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Engineering and Physical Sciences Research Council (EPSRC)UNSPECIFIED
Buro HappoldUNSPECIFIED
Subject Keywords:Structural optimization; Multiobjective; Grid shell; Free form structure; Homogenisation
Issue or Number:1-6
Record Number:CaltechAUTHORS:20091216-121728405
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20091216-121728405
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
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:22 Dec 2009 21:27
Last Modified:07 Apr 2017 23:06

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