VIBRATION SUPPRESSION USING PIEZOELECTRIC ELEMENTS: MODEL DEVELOPMENT FOR CONTROL APPLICATIONS

被引：0

作者：

Mutu, Roxana ^{[1
]}

Bataus, Marius Valentin ^{[1
]}

Croitorescu, Valerian ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Mat Technol & Welding Dept, Bucharest 060042, Romania

来源：

EUROPEAN SIMULATION AND MODELLING CONFERENCE 2013 | 2013年

关键词：

Piezoelectric elements; superelements; finite modeling; state-space; modal analysis;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Smart structures containing piezoelectric elements used for vibration suppression, are finding increasing applications in almost all industries. A smart structure always includes a controller. In order to implement and simulate the controller it is useful to possess a dynamic model of it that includes structural and smart properties of the materials involved. The dynamic model can be a state-space model or a transfer function. In this paper a methodology to obtain the dynamic model is presented. It was necessary to use two software platforms: the finite element software (SAMCEF), where the combined structure is modeled, and the control specialized software (MATLAB/Simulink). There are presented two methods of finite element analysis of the smart structure. The first method includes in the same model the plate and the patches (with their electrical properties). In the second method the plate and the patches are modeled separately and assembled in MATLAB using the dynamic substructuring method. The problem of actuators and sensor placement for the active vibration control of smart structures is also addressed.

引用

页码：212 / 216

页数：5

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