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

Bulletin of the Polish Academy of Sciences. Technical Sciences

A. D?ugoszDepartment of Strength of Materials and Computational Mechanics, Silesian University of Technology 18a. Konarskiego St., 44-100 Gliwice, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹  T. Burczy?skiDepartment of Strength of Materials and Computational Mechanics, Silesian University of Technology 18a. Konarskiego St., 44-100 Gliwice, PolandInstitute of Computer Science, Cracow University of Technology, 24 Warszawska St., 31-155 Cracow, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

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

关键词: Keywords: : multiobjective optimization;    evolutionary algorithms;    multiphysics;    coupled field problems;    finite element method.;   

DOI  :  10.2478/v10175-012-0028-3

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

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.

【 授权许可】

Unknown