Effect of partial saturation of bonded neo magnet on the automotive accessory motor | Zendy

Nimitkumar K. Sheth | Zendy; Raghu C. S. Babu Angara | Zendy

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Effect of partial saturation of bonded neo magnet on the automotive accessory motor

Author(s) -

Nimitkumar K. Sheth,

Raghu C. S. Babu Angara

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4973496

Subject(s) - magnet , neodymium magnet , automotive industry , demagnetizing field , saturation (graph theory) , finite element method , materials science , fixture , nuclear magnetic resonance , mechanical engineering , magnetic field , physics , engineering , thermodynamics , magnetization , mathematics , quantum mechanics , combinatorics

In this paper the effects of using a partially magnetized bonded neo (NdFeB) magnet in an automotive accessory motor are presented. The potential reason for partial saturation of the bonded neo magnet is explained and a simple method to ensure saturation of the magnet is discussed. A magnetizing fixture design using the 2-D Finite element analysis (FEA) is presented. The motor performance at various magnet saturation levels has been estimated using the 2-D FEA. Details of the thermal demagnetization test adopted by the automotive industry is also discussed and results of the motor performance for four saturation levels are detailed. These results indicate that the effect of demagnetization is more adverse in a motor with partially saturated magnets

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