Active vibration control of a simply supported beam using a spatially distributed actuator

The application of a spatially shaped distributed actuator for the vibration control of a simply supported beam is studied both analytically and experimentally. The actuator consists of a layer of polyvinylidene fluoride (PVF 2 ) bonded to one face of the beam. A summary of the underlying theory is...

Full description

Saved in:
Bibliographic Details
Published in:IEEE Control Systems Magazine 1987-08, Vol.7 (4), p.25-30
Main Authors: Burke, S., Hubbard, J.
Format: Article
Language:English
Subjects:
Actuators
beams
Bonding
Control systems
Current control
Damping
Distributed control
mechanical variables control
Polymers
Structural beams
structural parts
Vibration control
Vibration measurement
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The application of a spatially shaped distributed actuator for the vibration control of a simply supported beam is studied both analytically and experimentally. The actuator consists of a layer of polyvinylidene fluoride (PVF 2 ) bonded to one face of the beam. A summary of the underlying theory is presented, with emphasis on how controllability requirements affect the choice of the film's spatial distribution. The requisite film controller has a linearly varying spatial distribution that facilitates the control of both even- and odd-order vibrational modes. Experimental results are presented for the control of the beam's first three modes, using both the linearly varying as well as a uniform spatial distribution. The linearly varying distribution is shown to be effective in controlling both even- and odd-order modes, serving to increase the modal loss factors by up to a factor of 4.5. In addition, the experimental results are found to corroborate a simplified computer model of the controller.
ISSN:0272-1708
2374-9385
DOI:10.1109/MCS.1987.1105349