| 摘要 |
PROBLEM TO BE SOLVED: To provide a performance estimation method on a worked iron core for easily and highly accurately conducting performance evaluation so far performed only through actual measurement. SOLUTION: As to a performance estimation method on worked magnetic materials and on an iron core into which the magnetic materials are combined, the performance of the worked iron core is estimated by using a function that expresses work degradation of a magnetic material by using a distance from a worked part. Further, as to a performance estimation method on worked magnetic materials and on an iron core into which the magnetic materials are combined, work degradation is divided between a plastic deformation area and an elastic deformation area; the magnetic characteristics of a specimen obtained by rolling the magnetic material are used for the plastic deformation area while averaged magnetic characteristics are used for the elastic deformation area, the averaged magnetic characteristic being obtained by averaging magnetic characteristics under tension and magnetic characteristics under compressive force of the same size as the tension. COPYRIGHT: (C)2006,JPO&NCIPI
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