Simplified Numerical Simulation of Pulsed Magnets with a Finite Element Method

Abstract

The numerical simulation of magnetic field and mechanical deformation in pulsed magnets is described. ANSYS software was applied for numerical simulation. Due to construction symmetry the 3-D structure is simplified to 2-D structure and the numerical model of pulsed magnet was realized using the finite element method. The numerical model was done for two variants of multilayer reinforced pulsed magnet construction. The first one was wound with copper-niobium micro-composite wire, another - with traditional copper wire. Both magnets had similar pulsed magnetic field distribution and maximal value of magnetic flux density. Analyzing magnetic forces distribution and wire displacement it was found, that in spite of twice higher mechanical overloads took place in copper-niobium winding this magnet had the evidently better mechanical stability. Therefore numerical simulation results should be taken into account in further magnet optimization steps. Ill.4, bibl. 11 (in English; summaries in English, Russian and Lithuanian).