| 摘要 |
PROBLEM TO BE SOLVED: To enable an accurate calculation of the magnetic characteristic of a steel plate based on the aggregate texture of the steel plate made of a soft magnetic material even if the structure of each grain is not a single magnetic domain structure. SOLUTION: A method includes: deriving a minimum angleα<SB POS="POST">min</SB>formed between a <100> direction of each grain A and a direction of a magnetic field H; by using the aforementioned minimum angleα<SB POS="POST">min</SB>, deriving a component H<SB POS="POST"><100></SB>of the magnetic field H in a direction of axis of easy magnetization, the magnetic field H given to a calculation-object steel plate; deriving "a flux density B<SB POS="POST"><100></SB>in the direction of axis of easy magnetization" corresponding to the aforementioned component from "a B-H curve of a single grain of the calculation-object steel plate in the <100> direction"; and, by using the derived "flux density B<SB POS="POST"><100></SB>in the direction of axis of easy magnetization" and the minimum angleα<SB POS="POST">min</SB>formed between the <100> direction of each grain A and the direction of the magnetic field H, deriving a flux density B<SB POS="POST"><100></SB><SP POS="POST">H</SP>in the magnetic field H direction as "the flux density B<SB POS="POST"><100></SB><SP POS="POST">H</SP>(M, I) in the magnetic field H direction" of each grain A. COPYRIGHT: (C)2012,JPO&INPIT |
