层状多铁体板中频率相关磁电效应的理论建模。

Theoretical modeling of frequency-dependent magnetoelectric effects in laminated multiferroic plates.

机构信息

Department of Civil Engineering, Zhejiang University, Zijingang Campus, Hangzhou, PR China.

出版信息

IEEE Trans Ultrason Ferroelectr Freq Control. 2009 Dec;56(12):2750-9. doi: 10.1109/TUFFC.2009.1366.

DOI:10.1109/TUFFC.2009.1366

PMID:20040412

Abstract

The recently derived 2-D equations for extensional, flexural, and thickness-shear motions of laminated plates of piezoelectric/piezomagnetic layers are employed in the analysis of the frequency dependence of magnetoelectric couplings in laminated plates of piezoelectric and piezomagnetic layers driven by time-harmonic magnetic fields. Four structures are analyzed. Two are symmetric about the middle plane and are for extensional motions. The other 2 are antisymmetric about the middle plane and are for flexural motions. Frequency-dependent magnetoelectric effects are calculated and compared. Near resonances, the time-dependent magnetoelectric coupling coefficients are found to be much larger than the static magnetoelectric coupling coefficients.

摘要

最近推导出的用于压电/压磁层层合板的伸缩、弯曲和厚度剪切运动的 2-D 方程，用于分析在时谐磁场作用下驱动的压电和压磁层层合板中磁电耦合的频率依赖性。分析了四种结构。其中两个关于中面是对称的，用于伸缩运动。另外两个关于中面是反对称的，用于弯曲运动。计算并比较了频率相关的磁电效应。在接近共振时，发现时变磁电耦合系数比静态磁电耦合系数大得多。