An efficient approach for evaluating the low-frequency magnetic shielding effectiveness of long cylindrical multilayered structures enclosing a system of straight wires is presented. No restriction is imposed on the number of both conductors and shielding layers and on the conductor locations inside the shell. The quasi-static shielded magnetic field is related to the unshielded one by means of a transmission matrix whose elements depend only on the geometry and material properties of each layer. the method is extremely flexible and the ruselts obtained are in good agreement with those derived from a finite element analysis.
Magnetic Shielding of Long Wires with Multilayered Cylinders / Massarini, Antonio; U., Reggiani; L., Sandrolini. - STAMPA. - 2:(2000), pp. 263-267. (Intervento presentato al convegno 4th European symposium on Eletromagnetic Compatibility tenutosi a Brugge (Belgium) nel September 11-15, 2000).
Magnetic Shielding of Long Wires with Multilayered Cylinders
MASSARINI, Antonio;
2000
Abstract
An efficient approach for evaluating the low-frequency magnetic shielding effectiveness of long cylindrical multilayered structures enclosing a system of straight wires is presented. No restriction is imposed on the number of both conductors and shielding layers and on the conductor locations inside the shell. The quasi-static shielded magnetic field is related to the unshielded one by means of a transmission matrix whose elements depend only on the geometry and material properties of each layer. the method is extremely flexible and the ruselts obtained are in good agreement with those derived from a finite element analysis.
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