| 摘要 |
Provided are a magnetic field analysis program and a magnetic field analysis method capable of calculating, at high speed and with high precision, inductance related to an alternating current magnetic field superimposed upon a direct current magnetic field. The present invention is a magnetic field analysis program which solves an alternating current magnetic field with frequency response analysis, said program causing a computer to execute: a procedure (S100) of inputting a direct current magnetic flux density or a direct current magnetic field strength, an amplitude and a frequency of an alternating current, and an initial magnetization curve of a magnetic member to be analyzed, and obtaining a direct current magnetic field strength if the direct current magnetic flux density has been entered, and obtaining a direct current magnetic flux density if the direct current magnetic field strength has been entered; a procedure (S104) of executing frequency response analysis using the amplitude and the frequency of the alternating current in order to calculate an alternating current magnetic flux density and an alternating current magnetic field strength; and procedures (S105 and S106) of deriving a solution in which the total of the maximum value of the alternating current magnetic flux density obtained by the frequency response analysis and the direct current magnetic flux density matches, with a predetermined precision, a magnetic flux density determined by the total of the maximum value of the alternating current magnetic field strength obtained by the frequency response analysis and the direct current magnetic field strength, and the initial magnetization curve. |
