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作者机构:Univ Augsburg Inst Math D-8900 Augsburg Germany Bulgarian Acad Sci Cent Lab Parallel Proc Sofia Bulgaria Univ Trier Dept Math Trier Germany
出 版 物:《JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS》 (优选法理论与应用杂志)
年 卷 期:2002年第114卷第3期
页 面:545-571页
核心收录:
学科分类:1201[管理学-管理科学与工程(可授管理学、工学学位)] 07[理学] 070104[理学-应用数学] 0701[理学-数学]
基 金:Bulgarian Ministry for Education, Science, and Technology, (I-1001/2000, MM-801/1998) Alexander von Humboldt-Stiftung
主 题:Eddy current equations topology optimization nonlinear programming primal-dual interior-point methods watchdog strategy
摘 要:We consider the problem of minimization of energy dissipation in a conductive electromagnetic medium with a fixed geometry and a priori given lower and upper bounds for the conductivity. The nonlinear optimization problem is analyzed by using the primal-dual Newton interior-point method. The elliptic differential equation for the electric potential is considered as an equality constraint. Transforming iterations for the null space decomposition of the condensed primal-dual system are applied to find the search direction. The numerical experiments treat two-dimensional isotropic systems.