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Scalability of surrogate-assisted multi-objective optimization of antenna structures exploiting variable-fidelity electromagnetic simulation models
Abstrakt
Multi-objective optimization of antenna structures is a challenging task due to high-computational cost of evaluating the design objectives as well as large number of adjustable parameters. Design speedup can be achieved by means of surrogate-based optimization techniques. In particular, a combination of variable-fidelity electromagnetic (EM) simulations, design space reduction techniques, response surface approximation (RSA) models, and design refinement methods, permits identification of the Pareto-optimal set of designs within reasonable timeframe. Here, a study concerning scalability of surrogate-assisted multi-objective antenna design is carried out based on a set of benchmark problems with the dimensionality of the design space ranging from six to 24 and a CPU cost of the EM antenna model from 10 to 20 minutes per simulation. Numerical results indicate that the computational overhead of the design process increases more or less quadratically with the number of adjustable geometry parameters of the antenna structure at hand, which is a promising result from the point of view of handling even more complex problems.
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
-
ENGINEERING OPTIMIZATION
nr 48,
wydanie 10,
strony 1778 - 1792,
ISSN: 0305-215X - Język:
- angielski
- Rok wydania:
- 2016
- Opis bibliograficzny:
- Kozieł S., Bekasiewicz A.: Scalability of surrogate-assisted multi-objective optimization of antenna structures exploiting variable-fidelity electromagnetic simulation models// ENGINEERING OPTIMIZATION. -Vol. 48, iss. 10 (2016), s.1778-1792
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1080/0305215x.2015.1137565
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 142 razy