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Adjoint Variable Method for the Study of Combined Active and Passive Magnetic Shielding
Joint Authors
Sergeant, Peter
Van Keer, Roger
Melicher, Valdemar
Dupré, Luc
Cimrák, Ivan
Source
Mathematical Problems in Engineering
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-03-31
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
For shielding applications that cannot sufficiently be shielded by only a passive shield, it is useful to combine a passive and an active shield.
Indeed, the latter does the “finetuning” of the field reduction that is mainly caused by the passive shield.
The design requires the optimization of the geometry of the passive shield, the position of all coils of the active shield, and the real and imaginary components of the currents (when working in the frequency domain).
As there are many variables, the computational effort for the optimization becomes huge.
An optimization using genetic algorithms is compared with a classical gradient optimization and with a design sensitivity approach that uses an adjoint system.
Several types of active and/or passive shields with constraints are designed.
For each type, the optimization was carried out by all three techniques in order to compare them concerning CPU time and accuracy.
American Psychological Association (APA)
Sergeant, Peter& Cimrák, Ivan& Melicher, Valdemar& Dupré, Luc& Van Keer, Roger. 2008. Adjoint Variable Method for the Study of Combined Active and Passive Magnetic Shielding. Mathematical Problems in Engineering،Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-466520
Modern Language Association (MLA)
Sergeant, Peter…[et al.]. Adjoint Variable Method for the Study of Combined Active and Passive Magnetic Shielding. Mathematical Problems in Engineering No. 2008 (2008), pp.1-15.
https://search.emarefa.net/detail/BIM-466520
American Medical Association (AMA)
Sergeant, Peter& Cimrák, Ivan& Melicher, Valdemar& Dupré, Luc& Van Keer, Roger. Adjoint Variable Method for the Study of Combined Active and Passive Magnetic Shielding. Mathematical Problems in Engineering. 2008. Vol. 2008, no. 2008, pp.1-15.
https://search.emarefa.net/detail/BIM-466520
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466520