Magnetic shielding of a thin Al/steel/Al composite
| Autor: | Thierry Baudin, Xavier Mininger, Laurent Prevond, Paul Clérico, Anne-Laure Helbert |
|---|---|
| Přispěvatelé: | Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Génie électrique et électronique de Paris (GeePs), CentraleSupélec-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Rennes (ENS Rennes)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay)-Université Gustave Eiffel-CY Cergy Paris Université (CY) |
| Rok vydání: | 2020 |
| Předmět: |
Finite element method
Materials science Composite number chemistry.chemical_element 02 engineering and technology Magnetic shielding 7. Clean energy Homogenization (chemistry) [SPI.MAT]Engineering Sciences [physics]/Materials Aluminium 0202 electrical engineering electronic engineering information engineering Homogenization method Electrical and Electronic Engineering Composite material Bimetallic strip Applied Mathematics 020208 electrical & electronic engineering 021001 nanoscience & nanotechnology Computer Science Applications Magnetic field [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism Computational Theory and Mathematics chemistry Electromagnetic coil Electromagnetic shielding 0210 nano-technology Numerical analysis Voltage |
| Zdroj: | COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Emerald, 2020, 39 (3), pp.595-609. ⟨10.1108/COMPEL-09-2019-0374⟩ |
| ISSN: | 0332-1649 |
| DOI: | 10.1108/compel-09-2019-0374 |
| Popis: | Purpose This paper aims to investigate the efficiency of a laminated composite for shielding applications. The solution has to be efficient not only for the shield against static magnetic fields but also “for low-frequency ones, in order to be well-suited for applications with electromagnetic perturbations in the frequency range DC to 100 kHz.” Design/methodology/approach The composite constituted of a steel sheet taken in a sandwich between two aluminum (Al) sheets is produced by cold roll bonding. A good adherence between Al and steel sheets, ensuring a good mechanical resistance, is obtained with a specific process. A previous study has shown that the optimal trade-off between adherence and magnetic shielding effectiveness (SEH) is obtained with a 230 µm composite produced with an initial thickness of Al and steel sheets, respectively, of 250 and 100 µm. In this paper, the 230 µm Al/steel/Al composite is used in three applications modelized by two-dimensional numerical simulations. To obtain reasonable computation time for the simulations, a homogenization method is applied to the composite. Studied applications are a cylindrical box containing a coil, a square box under an external magnetic field and a high voltage cable. Findings In each application, SEH is calculated at low frequency and different materials (Al/steel/Al, Al, steel and copper) are compared. It is observed that, in each application, the composite presents higher SEH at equal mass, especially for frequencies between 5 and 100 kHz. Originality/value The proposed approach, from the material point of view to the system consideration, shows that the thin bimetallic composite is an innovative and promising solution for magnetic shielding in the case of applications with both DC and low-frequency perturbations. |
| Databáze: | OpenAIRE |
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