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On the dualism of voltage oscillations and kinematical variables of a 1D-beam piezofilm

机译：一维电子束压电膜的电压振荡和运动学变量的二元论

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The aim of this paper is to model in a mathematical way the relation between kinematical variables and voltage oscillation as experimentally observed with a PVDF (Polyvinylidene fluoride) piezofilm under dynamical excitation. The dynamic loads induce the vibrations on the piezofilm's tip. The scientific investigation has been conducted using a laboratory equipment where a piezofilm is excited by a harmonic load. The piezofilm is considered as 1-D beam studied according to the Timoshenko's theory and discretized by finite element method coupled to its electro-mechanical characteristics. The kinematical variables of each element of the beam are the two vertical displacements and two rotations. The normal stress and axial deformation are not involved in the study in order to make the investigation as simple as possible. The analytical solution of charge displacement depending on the kinematics has been developed in order to compare the results with experimental investigation of the manufacturer. (C) 2015 Elsevier Ltd. All rights reserved.
机译：本文的目的是以数学方式对运动变量和电压振荡之间的关系进行建模，这是在动态激励下用PVDF（聚偏二氟乙烯）压电薄膜通过实验观察到的。动态载荷会引起压电薄膜尖端的振动。使用实验室设备进行了科学研究，在该设备中，压电薄膜被谐波负载激励。压电膜被认为是根据Timoshenko理论研究的一维电子束，并通过有限元方法和其机电特性离散。光束的每个元素的运动学变量是两个垂直位移和两个旋转。为了使研究尽可能简单，本研究不涉及正应力和轴向变形。为了将结果与制造商的实验研究进行比较，已经开发了取决于运动学的电荷位移分析解决方案。 （C）2015 Elsevier Ltd.保留所有权利。

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