非线性带梯度涂层柱形复合介质有效交直流电响应

Effective AC/DC Response of Nonlinear Cylindrical Gradient Coated Composites

运用摄动法研究了非线性带梯度涂层柱形复合介质在外加交直流电场作用下的电势分布、有效介电响应以及它们之间的关系.这种介质的电位移矢量和电场强度满足非线性本构关系式D_α=ε_αE+χ_α|E|~2 E,外加电场为E_(app)=E_0(1+sinωt)(其中ω为角频率).

In this paper,the potential distribution,the effective responses of the nonlinear cylindrical gradient coated composites and the relationship between them are investigated by using the perturbation method under the external AC/DC electric field.The electric displacement vector and electric field intensity of the medium satisfy the nonlinear constitutive equation D_α =ε_αE +χ_α|E|~2 E,and the applied electric field is E_(app) =E_0(1+sinωt)(ω is the angular frequency).