| 摘要 |
PROBLEM TO BE SOLVED: To highly accurately calculate an electromagnetic field in a short time while decreasing the number of unknown variables by avoiding an adverse influence caused by the oblateness of a finite element in electromagnetic field analysis based on a finite element method. SOLUTION: Concerning a method for calculating an eddy current to be generated in a non-magnetic conductor thinner than the depth of penetration while using a computer, this electromagnetic field analyzing method is provided with a process for calculating the electromagnetic field of an analytic object area, in which the characteristics of the non-magnetic conductor is assumed as air, through the finite element method using a magnetic vector potential. This analyzing method is also provided with a process for calculating the eddy current to be generated in the non-magnetic conductor through the finite element method using the current vector potential and a magnetic scalar potential for the electromagnetic field defining only the non-magnetic conductor and the periphery thereof as the analytic object area while defining a magnetic flux density distribution perpendicularly crossing a non-magnetic conductor part found by this calculation as initial conditions.
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