Active beam vibration control using PZT actuators
作者:
S.Y. Wu,
B.N. Tran,
F.Y. Davis,
C.L. Trent,
D.L. Edberg,
W.A. Geideman,
期刊:
Integrated Ferroelectrics
(Taylor Available online 1994)
卷期:
Volume 4,
issue 3
页码: 281-291
ISSN:1058-4587
年代: 1994
DOI:10.1080/10584589408017032
出版商: Taylor & Francis Group
关键词: vibration;acoustic noise;control;suppression;actuator;sensor;beam;shaker;lead-zirconate-titanate;velocity;adaptive;feedback;damping;attenuation;broadband;transfer function;frequency response;amplitude;phase
数据来源: Taylor
摘要:
Smart materials of lead-zirconate-titanate (PZT) piezoelectric ceramics have attracted attention in recent years for active vibration control, acoustic noise suppression, health monitoring and damage assessment. We at McDonnell Douglas Aerospace have been studying these ceramics for use as sensors and actuators in various space and aircraft structures. In this paper, we will report results of a recent study on active vibration control using monomorph PZT actuators. The experiments were performed on thin aluminum cantilever beams. Collocated and non-collocated sensors and actuators were employed. Two control techniques: the classical velocity feedback and adaptive feedback controls, were investigated. We have obtained significant damping and broadband vibration attenuation of greater than 30 dB using the classical control with the single-input single-output feedback approach. A 24 dB reduction has also been achieved using the adaptive control with the multiple-input single-output approach. Detailed experimental methods and results will be described.
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