In contributing to the body of knowledge for decision-based design, the work reported in this paper has involved steps towards building a hybrid genetic algorithm to address systems design. Highlighted is a work in progress at the Australian Defence Force Academy (ADFA). A genetic algorithm (GA) is proposed to deal with discrete aspects of a design model (e.g., allocation of space to function) and a sequential linear programming (SLP) method for the continuous aspects (e.g., sizing). Our historical Decision Based Design (DBD) tool has been the code DSIDES (Decision Support In the Design of Engineering Systems). The original functionality of DSIDES was to solve linear and non-linear goal programming styled problems using linear programming (LP) and sequential (adaptive) linear programming (SLP/ALP). We seek to enhance DSIDES’s solver capability by the addition of genetic algorithms. We will also develop the appropriate tools to deal with the decomposition and synthesis implied. The foundational paradigm for DSIDES, which remains unchanged, is the Decision Support Problem Technique (DSPT). Through introducing genetic algorithms as solvers in DSIDES, the intention is to improve the likelihood of finding the global minimum (for the formulated model) as well as the ability of dealing more effectively with nonlinear problems which have discrete variables, undifferentiable objective functions or undifferentiable constraints. Using some numerical examples and a practical ship design case study, the proposed GA based method is demonstrated to be better in maintaining diversity of populations, preventing premature convergence, compared with other similar GAs. It also has similar effectiveness in finding the solutions as the original ALP DSIDES solver.
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ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 29–October 2, 2002
Montreal, Quebec, Canada
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-3621-5
PROCEEDINGS PAPER
Towards a Hybrid Solver: Integration of a Genetic Algorithm Within “DSIDES”
Shuiwei Xie,
Shuiwei Xie
Australian Defence Force Academy, Canberra, ACT, Australia
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Warren F. Smith
Warren F. Smith
Australian Defence Force Academy, Canberra, ACT, Australia
Search for other works by this author on:
Shuiwei Xie
Australian Defence Force Academy, Canberra, ACT, Australia
Warren F. Smith
Australian Defence Force Academy, Canberra, ACT, Australia
Paper No:
DETC2002/CIE-34400, pp. 137-147; 11 pages
Published Online:
June 18, 2008
Citation
Xie, S, & Smith, WF. "Towards a Hybrid Solver: Integration of a Genetic Algorithm Within “DSIDES”." Proceedings of the ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 22nd Computers and Information in Engineering Conference. Montreal, Quebec, Canada. September 29–October 2, 2002. pp. 137-147. ASME. https://doi.org/10.1115/DETC2002/CIE-34400
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