Title :
Optimal design of injection mold for plastic bonded magnet
Author :
Nakata, T. ; Takahashi, N. ; Fujiwara, K. ; Kawashima, T. ; Morii, A.
Author_Institution :
Dept. of Electr. Eng., Okayama Univ., Japan
fDate :
11/1/1991 12:00:00 AM
Abstract :
The optimal design of an injection mold for producing a stronger multipole magnet is carried out using the finite element method and the direct search method. It is shown that the maximum flux density in the cavity obtained by the optimal design is about 2.6 times higher than that of the initial shape determined empirically. 3-D analysis of the nonlinear magnetic field in the injection mold with complicated structure is also carried out. The calculated flux distribution on the cavity surface is in good agreement with the measured one
Keywords :
electromagnets; finite element analysis; magnetic flux; 3D analysis; cavity surface; direct search method; finite element method; flux distribution; injection mold; maximum flux density; multipole magnet; nonlinear magnetic field; optimal design; plastic bonded magnet; Bonding; Design methodology; Finite element methods; Magnetic analysis; Magnetic flux; Permanent magnets; Plastics; Search methods; Shape; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
