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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 50
INNOVATION IN COMPUTER METHODS FOR CIVIL AND STRUCTURAL ENGINEERING
Edited by: B.H.V. Topping and M.B. Leeming
Paper IX.2

Structural Design using Multi-Level Evolutionary Strategies

H.D. Vekeria and I.C. Parmee

Plymouth Engineering Design Centre, University of Plymouth, Plymouth, United Kingdom

Full Bibliographic Reference for this paper
H.D. Vekeria, I.C. Parmee, "Structural Design using Multi-Level Evolutionary Strategies", in B.H.V. Topping, M.B. Leeming, (Editors), "Innovation in Computer Methods for Civil and Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 121-127, 1997. doi:10.4203/ccp.50.9.2
Abstract
This paper describes Evolutionary strategies utilising multilevel architectures for the reduction in computational expense associated with the optimisation of a highly dimensional structural design problem. The initial utilisation and comparison of basic evolutionary approaches leads to the introduction of high-performance evolutionary and adaptive search algorithms in order to improve performance within the high dimensional space that describes the component topology. A requirement for computationally expensive finite element analysis provokes the development of a sequential method for Dynamic Shape Refinement (DSR) in an attempt to minimise calls to the fitness function and further improve solution performance. This leads to the utilisation of distributed, co-operative injection island strategies and the development of strategies both for the dynamic refinement of component representation and the introduction / removal of differing search algorithms within the injection island architecture.

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