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Constitutive equations of symmetrical triple layer piezoelectricbenders

机译:对称三层压电弯曲机的本构方程

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Piezoelectric triple layer benders, with a structure of twonpiezoelectric top and bottom layers sandwiched by a non-piezoelectricnelastic central layer, are one of the most commonly used piezoelectricndevices. In this paper, we present the derivation of the constitutivenequations of a symmetrical triple layer piezoelectric bender underndifferent excitation conditions. The constitutive equations arenpresented by a 4×4 matrix with an external moment M, an externalntip force F, a uniform load p, and an applied electric voltage V as thenextensive parameters, with the generated tip angular deflection (slope)nΑ, tip deflection Δ, volume displacement v, and electricncharge Q as the internal parameters. Further analysis on thenelectromechanical behavior of the triple layer piezoelectric bender cannbe made on the constitutive equations
机译:压电三层弯曲器是最常用的压电器件之一,其三层压电顶层和底层的结构被非压电弹性中心层夹在中间。在本文中,我们提出了在不同激励条件下对称的三层压电弯曲机的本构方程的推导。本构方程由一个4×4矩阵表示,该矩阵具有一个外部力矩M,一个外部尖端力F,一个均匀载荷p和一个施加的电压V,然后作为扩展参数,并生成了尖端角偏转(斜率)nΑ,尖端偏转Δ ,体积排量v和电荷Q作为内部参数。不能根据本构方程进一步分析三层压电弯曲机的机电性能。

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