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Titolo:
Controlled mutation in evolutionary structural optimization
Autore:
Gutkowski, W; Iwanow, Z; Bauer, J;
Indirizzi:
Polish Acad Sci, Inst Fundamental Technol Res, PL-00049 Warsaw, Poland Polish Acad Sci Warsaw Poland PL-00049 hnol Res, PL-00049 Warsaw, Poland
Titolo Testata:
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
fascicolo: 5, volume: 21, anno: 2001,
pagine: 355 - 360
SICI:
1615-147X(200107)21:5<355:CMIESO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Keywords:
minimum weight; genetic algorithm; evolutionary optimization; evolutionary strategy; controlled mutation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Gutkowski, W Polish Acad Sci, Inst Fundamental Technol Res, Swietokrzyska 21, PL-00049 Warsaw, Poland Polish Acad Sci Swietokrzyska 21 Warsaw PolandPL-00049 land
Citazione:
W. Gutkowski et al., "Controlled mutation in evolutionary structural optimization", ST MULT OPT, 21(5), 2001, pp. 355-360

Abstract

The paper deals with minimum weight design applying Evolutionary Strategy (ES), improved by controlled mutation. Applied selection and crossover are typical for ES. Mutations, however, are controlled by state variables, in this case by stresses. After crossover, from each population, a voted numberof chromosomes are inspected from the point of view of stresses occurring in structural members (genes). Changes of cross-sectional areas are introduced depending on the minimum, or maximum stresses. 124 runs of the algorithm were performed on a bench-mark problem, with known optimum solution. The number of exact solutions, applying controlled mutation, was four times larger than in the case of a simple ES algorithm.

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Documento generato il 29/03/20 alle ore 15:03:00