A new 3D model of the electro-mechanical response of piezoelectric structures

被引：0

作者：

Elata, D ^{[1
]}

Elka, E ^{[1
]}

Abramovich, H ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel

来源：

NSTI NANOTECH 2004, VOL 2, TECHNICAL PROCEEDINGS | 2004年

关键词：

piezoelectric; multimorphs actuators; electromechanical coupling;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The constitutive equations of multi-layered piezoelectric structures are derived in a new form. In this form, the electromechanical coupling is presented as an additional stiffness matrix. This matrix is a true property of the piezoelectric structure and is independent of specific mechanical boundary conditions that may apply to the structure. A novel model of the electromechanical response of such structures is presented. This model accounts for the 3D kinematics of the structure deformation. Solution of example problems using the new model shows excellent agreement with full 3D finite element simulations. These solutions are also compared with the results of previous 2D model approximations presented in literature, and the inaccuracies associated with these previous models are discussed.

引用

下载

页码：267 / 270

页数：4

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