Multiobjective shape optimization of selected coupled problems by means of evolutionary algorithms

• Autorzy: Długosz A. , Burczyński T.
• Języki publikacji: EN

Abstrakty

EN

In present paper an improved multi-objective evolutionary algorithm is used for Pareto optimization of selected coupled problems. Coupling of mechanical, electrical and thermal fields is considered. Boundary-value problems of the thermo-elasticity, piezoelectricity and electro-thermo-elasticity are solved by means of finite element method (FEM). Ansys Multiphysics and MSC.Mentat/Marc software are used to solve considered coupled problems. Suitable interfaces between optimization tool and the FEM software are created. Different types of functionals are formulated on the basis of results obtained from the coupled field analysis. Functionals depending on the area or volume of the structure are also proposed. Parametric curves NURBS are used to model some optimized structures. Numerical examples for exemplary three-objective optimization are presented in the paper.

Słowa kluczowe

EN

multiobjective optimization; evolutionary algorithms; multiphysics; coupled field problems; finite element method

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2012
• Tom: Vol. 60, nr 2
• Strony: 215--222
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Długosz A.

autor

Burczyński T.

• Department of Strength of Materials and Computational Mechanics, Silesian University of Technology 18a. Konarskiego St., 44-100 Gliwice, Poland,

Bibliografia

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