Affiliations: [a] State Key Laboratory for Strength and Vibration of
Mechanical Structures, Xi'an Jiaotong University, Xi'an, Shaanxi, China | Université Laval, Canada | Tohoku University, Japan
Correspondence:
[*]
Corresponding author: Yanhua Sun, School of Mechanical
Engineering, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an
710049, Shaanxi, China. Tel.: +86 29 8339 5085; E-mail:
sunyanhua@mail.xjtu.edu.cn
Abstract: To calculate the complex permeability of soft magnetic composites,
two-dimensional analytical models with and without the defects were used for
the complex case. The relation of the complex permeability with the frequency,
component size ratio δ and inclusion particle size is deduced. The
results show that the effect of the defects is even more pronounced for the
complex permeability. The complex permeability is a function of the component
size ratio δ and the size of the inclusion. Increasing the component size
ratio δ causes a decrease of the complex permeability at the same
frequency. With the increase of inclusion particle size when the component size
ratio keeps constant 0.01, both of the real and imaginary parts increase. In
addition, the theoretical method is tested by the experimental results, which
can be used to design parameters before the experiment.
Keywords: Complex permeability, defect rate, soft magnetic composites
