Active vibration control of smart hull structures using piezoelectric actuators

Title
Active vibration control of smart hull structures using piezoelectric actuators
Authors
Choi, S.B.
Keywords
vibration control, hull structure, piezoelectric actuator, finite-element modelling
Issue Date
2006-09
Publisher
PROFESSIONAL ENGINEERING PUBLISHING LTD
Abstract
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.
URI
http://dspace.inha.ac.kr/handle/10505/1696
ISSN
0954-4062
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
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