| 摘要 |
PROBLEM TO BE SOLVED: To provide an analyzer which is capable of more accurate deformation and vibration analysis by accurately calculating a nodal point force equivalent to distortion due to a magnetic flux density.SOLUTION: On the basis of a numerical analysis model which represents an electromagnetic component including a magnetic body in which magnetic distortion may occur, with a combination of a plurality of finite elements in a finite element method analysis, an analyzer calculates a nodal point force equivalent to distortion of each nodal point of the finite elements or each finite element due to a magnetic flux density. The analyzer includes: storage means in which a relation between the magnetic flux density and the distortion and a relation between the distortion and stress in a prescribed first coordinate system are stored; distortion calculation means which calculates distortion of each nodal point or each finite element in a second coordinate system having a main axis substantially parallel with the direction of the magnetic flux density, on the basis of information stored in the storage means; coordinate conversion means for coordinate conversion from distortion in the second coordinate system of each nodal point or each finite element to distortion in the first coordinate system; and means which calculates a nodal point force equivalent to distortion on the basis of the distortion subjected to coordinate conversion and information stored in the storage means. |
