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- Title
Grammatical evolution of shape and its application to structural shape optimisation.
- Authors
Nasuf, Alkin; Bhaskar, Atul; Keane, Andy
- Abstract
We propose an automated shape generative framework, which provides an alternative way of exploring the design space in a structural mechanics context. The framework presented uses 'blind' evolutionary intelligence to synthesise shape grammar sentences i.e. Grammatical Evolution (GE), where rules are selected by a Genetic Algorithm (GA). This is a novel approach to automate the Shape Grammar (SG) formalism. We then present an application of a grammar based shape generative framework to solve a 2D design optimisation problem. This involves synthesis of parametric 2D curves where the shape grammar primitives are introduced as arcs represented by rotation and a radius. The efficacy of the proposed shape generative framework is then compared with that of Non-Uniform Rational B-Splines (NURBS) parametrisation for structural optimisation.
- Subjects
SYSTEMS design; STRUCTURAL mechanics; GENETIC algorithms; GLOBAL optimization; PARAMETER estimation; NON-uniform motion
- Publication
Structural & Multidisciplinary Optimization, 2013, Vol 48, Issue 1, p187
- ISSN
1615-147X
- Publication type
Article
- DOI
10.1007/s00158-013-0890-0