Resonance magnetoelectric effect in radially polarized long cylindrical composite structures

被引：14
|
作者：
Wu, Gaojian [1 ,2 ]
Zhang, Ru [1 ,2 ]
Zhang, Li [2 ]
Zhu, Honghu [3 ]
Zhang, Ning [1 ]
机构：
[1] Nanjing Normal Univ, Magnetoelect Lab, Nanjing 210097, Jiangsu, Peoples R China
[2] Nanjing Univ Technol, Dept Appl Phys, Nanjing 210009, Jiangsu, Peoples R China
[3] Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 21期
基金：
中国国家自然科学基金;
关键词：
CERAMIC CYLINDERS; FREQUENCY;
D O I：
10.1063/1.4808443
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We proposed a theoretical model describing frequency response of magnetoelectric (ME) voltage coefficients in long cylindrical piezoelectric-magnetostrictive composite structures. Using constitutive equations of the materials and equation of motion, an expression for the ME voltage coefficient is derived in terms of material parameters characterizing piezoelectric and magnetostrictive phases and as a function of applied ac magnetic field frequency. It is shown that there is a considerable enhancement in ME voltage coefficient in the region of electromechanical resonance. The resonance frequency equation is obtained as a function of material parameters and geometry sizes. The relationship between resonance frequency and resonance ME effect with geometry size under different boundary mechanical conditions is investigated in trilayered and bilayered cylindrical composites using the derived model. This theoretical work is of some significance for designing ME devices and understanding the resonance vibration mode in cylindrical ME composite structures. (C) 2013 AIP Publishing LLC.
引用
收藏
页数：8
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