On improved evolutionary algorithms application to the physically based approximation of experimental data

• Autorzy: Orkisz J. , Głowacki M.
• Języki publikacji: EN

Abstrakty

EN

In this paper an evolutionary algorithms (EA) application to the physically based approximation (PBA) of experimental and/or numerical data is considered. Such an approximation may simultaneously use the whole experimental, theoretical and heuristic knowledge about the analyzed problems. The PBA may be also applied for smoothing discrete data obtained from any rough numerical solution of the boundary value problem, and for solving inverse problems as well, like reconstruction of residual stresses based on experimental data. The PBA presents a very general approach formulated as a large non-linear constrained optimization problem. Its solution is usually complex and troublesome, especially in the case of non-convex problems. Here, considered is a solution approach of such problems based on the EA. However, the standard EA are rather slow methods, especially in the final stage of optimization process. In order to increase their solution efficiency, several acceleration techniques were introduced. Various benchmark problems were analyzed using the improved EA. The intended application of this research is reconstruction of residual stresses in railroads rails and vehicle wheels based on neutronography measurements.

Słowa kluczowe

EN

evolutionary algorithms; solution efficiency increase; experimental data smoothing; large nonlinear constrained optimization

PL

algorytmy ewolucyjne; wzrost efektywności; dane eksperymentalne; ograniczona nieliniowa optymalizacja

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Methods in Engineering and Science
• Rocznik: 2014
• Tom: Vol. 21, no. 1
• Strony: 27--38
• Opis fizyczny: Bibliogr. 20 poz., wykr.

Twórcy

autor

Orkisz J.

• Institute for Computational Civil Engineering, Cracow University of Technology, Poland

autor

Głowacki M.

• Institute for Computational Civil Engineering, Cracow University of Technology, Poland

Bibliografia

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