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Introduction of fixed grid in evolutionary structural optimisation

H. Kim (Department of Aeronautical Engineering, University of Sydney, Australia)
M.J. Garcia (Department of Aeronautical Engineering, University of Sydney, Australia)
O.M. Querin (Department of Aeronautical Engineering, University of Sydney, Australia)
G.P. Steven (Department of Aeronautical Engineering, University of Sydney, Australia)
Y.M. Xie (School of the Built Environment, Victoria University of Technology, Melbourne, Australia)

Engineering Computations

ISSN: 0264-4401

Publication date: 1 June 2000

Abstract

Introduces a faster and improved structural optimisation method which combines fixed grid finite element analysis (FG FEA) and evolutionary structural optimisation (ESO). ESO optimises a structure by removing a few elements at every iteration. FG methods allow fast mesh generation, fast solution and fast re‐evaluation of the modified meshes. The implementation of FG into the ESO process eliminates the need for regenerating the mesh and a few arithmetic calculations replace the full regeneration of the stiffness matrix every time the structure is modified. This greatly reduces the solution time, and the examples presented in this paper demonstrate and validate the method.

Keywords

Citation

Kim, H., Garcia, M.J., Querin, O.M., Steven, G.P. and Xie, Y.M. (2000), "Introduction of fixed grid in evolutionary structural optimisation", Engineering Computations, Vol. 17 No. 4, pp. 427-439. https://doi.org/10.1108/02644400010334838

Publisher

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MCB UP Ltd

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