Active vibration control of smart hull structures using piezoelectric actuators

被引：10

作者：

Sohn, J. W. ^{[1
]}

Kim, H. S. ^{[1
]}

Choi, S. B. ^{[1
]}

机构：

[1] Inha Univ, Dept Mech Engn, Smart Struct & Syst Lab, Inchon 402751, South Korea

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2006年 / 220卷 / 09期

关键词：

vibration control; hull structure; piezoelectric actuator; finite-element modelling; modal analysis;

D O I：

10.1243/09544062C06105

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, dynamic characteristics of an end-capped hull structure with surface-bonded piezoelectric actuators are studied and active vibration controller is designed to suppress the undesired vibration of the structure. Finite-element modelling is used to obtain practical governing equation of motion and boundary conditions of smart hull structure. A modal analysis is conducted to investigate the dynamic characteristics of the hull structure. Piezoelectric actuators are attached where the maximum control performance can be obtained. Active controller on the basis of a linear quadratic Gaussian (LQG) theory is designed to suppress the vibration of smart hull structure. It is observed that closed-loop damping can be improved with suitable weighting factors in the developed LQG controller and the structural vibration can be successfully suppressed.

引用

页码：1329 / 1337

页数：9

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