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综述与专论 董军·基于有限元的复合材料介电性能仿真方法初探
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[1] 党智敏,王海燕,王岚 . 新型高温高介无机 / 有机功能复合材 [13] Qi X, Zheng Z., Boggs, S.;, Engineering with Nonlinear
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Simulation method of dielectric properties of composite materials
based on finite element method
Dong Jun
(Dalian Lvshun Jinli Rubber Co. LTD., Dalian 116043, Liaoning, China)
Abstract: In order to explore the method of computer simulation study on the dielectric properties of
composite insulating materials, a nonlinear composite material with self consistent electric field distribution
function is prepared by adding inorganic filler in polymer matrix. This paper presents a method of composite
model to simulate the electric field calculation of dielectric properties by using the finite element method,
and analyzes the relationship between the change of electric field distribution and the macroscopic current
response in the composite under alternating voltage. On the basis of this, the time domain least square
method is used to decompose the total current, then the AC equivalent conductivity and relative dielectric
constant of nonlinear medium are obtained. The experimental results verify the effectiveness of the method.
It is shown that using the finite element method to know the electric field phenomena in the process of slow
polarization in composite materials and the simulation of the dielectric parameters provides a new way for
the study of dielectric properties of materials.
Key words: composite; dielectric property; finite element; nonlinear; electric field; simulation
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2017 第 43 卷 ·27·
年