Interval-based global optimization in engineering using model reformulation and constraint propagation

Authors:
Issam Mazhoud;Khaled Hadj-Hamou;Jean Bigeon;Ghislain Remy
Affiliations:
Grenoble-INP/UJF-Grenoble 1/CNRS, G-SCOP UMR5272, Grenoble F-38031, France;Grenoble-INP/UJF-Grenoble 1/CNRS, G-SCOP UMR5272, Grenoble F-38031, France;Grenoble-INP/UJF-Grenoble 1/CNRS, G-SCOP UMR5272, Grenoble F-38031, France;LGEP CNRS/SUPELEC, 11 rue Joliot Curie, Plateau de Moulon, 91192 Gif sur Yvette, France
Venue:
Engineering Applications of Artificial Intelligence
Year:
2012

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Abstract

This paper deals with the preliminary design problem when the product is modeled as an analytic model. The analytic models based method aims to use mathematical equations to address both multi-physic and economic characteristics of a product. The proposed approach is to convert the preliminary design problem into a global constrained optimization problem. The objective is to develop powerful optimization methods enough to handle complex analytical models. We propose to adapt an approach to solve this problem based on interval analysis, constraint propagation and model reformulation. In order to understand the optimization algorithm used for engineering design problems, some basic definitions and properties of interval analysis are introduced. Then, the basic optimization algorithms for both unconstrained and constrained problems are introduced and illustrated. The next section introduces the reformulation technique as main accelerating device. An application of the reformulation device and its global optimization algorithm on the optimal design of electrical actuators is presented.