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Considerations of uncertainty in robust optimisation of electromagnetic devices

Considerations of uncertainty in robust optimisation of electromagnetic devices
Considerations of uncertainty in robust optimisation of electromagnetic devices
Due to unavoidable uncertainties related to material properties and manufacturing processes, the robustness of the optimal solution must be considered when designing electromagnetic devices. In this paper, the worst-case optimisation (WCO) and the worst-vertex-based WCO are proposed to evaluate the robustness of both performance and constraints under uncertainty. To reduce computing times when searching for the robust solution a predicted objective function is used, obtained with the help of a kriging algorithm which explores the searching space using the concept of rewards. Finally, to avoid some of the shortcomings of WCO, the concept of average performance evaluation is developed.
robust optimisation, CAD in electromagnetics, kriging
1383-5416
427-436
Song, Xiao
aa1d30d1-ab3f-424e-97a5-90d134db639a
Li, Yinjiang
035e8693-c6e6-4a91-8e10-9232fd0c3112
Rotaru, Mihai
c53c5038-2fed-4ace-8fad-9f95d4c95b7e
Sykulski, Jan K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb
Song, Xiao
aa1d30d1-ab3f-424e-97a5-90d134db639a
Li, Yinjiang
035e8693-c6e6-4a91-8e10-9232fd0c3112
Rotaru, Mihai
c53c5038-2fed-4ace-8fad-9f95d4c95b7e
Sykulski, Jan K.
d6885caf-aaed-4d12-9ef3-46c4c3bbd7fb

Song, Xiao, Li, Yinjiang, Rotaru, Mihai and Sykulski, Jan K. (2014) Considerations of uncertainty in robust optimisation of electromagnetic devices. International Journal of Applied Electromagnetics and Mechanics, 46 (2), 427-436. (doi:10.3233/JAE-141954).

Record type: Article

Abstract

Due to unavoidable uncertainties related to material properties and manufacturing processes, the robustness of the optimal solution must be considered when designing electromagnetic devices. In this paper, the worst-case optimisation (WCO) and the worst-vertex-based WCO are proposed to evaluate the robustness of both performance and constraints under uncertainty. To reduce computing times when searching for the robust solution a predicted objective function is used, obtained with the help of a kriging algorithm which explores the searching space using the concept of rewards. Finally, to avoid some of the shortcomings of WCO, the concept of average performance evaluation is developed.

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More information

e-pub ahead of print date: 4 June 2014
Published date: 23 September 2014
Keywords: robust optimisation, CAD in electromagnetics, kriging
Organisations: EEE

Identifiers

Local EPrints ID: 370115
URI: http://eprints.soton.ac.uk/id/eprint/370115
ISSN: 1383-5416
PURE UUID: cd76cdf7-15ee-4e84-8923-830cb588682e
ORCID for Jan K. Sykulski: ORCID iD orcid.org/0000-0001-6392-126X

Catalogue record

Date deposited: 15 Oct 2014 12:40
Last modified: 17 Dec 2019 02:04

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