NDLI: Optimal control and H/sub /spl infin// filter for control of Timoshenko beam vibrations using piezoelectric material

Content Provider	IEEE Xplore Digital Library
Author	Li, X. Agarwal, R.K. Shue, S.-P.
Copyright Year	1998
Description	Author affiliation: Inst. for Aviation Res., Wichita State Univ., KS, USA (Li, X.)
Abstract	Optimal control and H/sub /spl infin// robust filter design for the beam vibration problem using smart material as actuators and sensors are studied. The Timoshenko beam (TB) is employed as the structural model. To stabilize the vibration of flexible beams, active control using piezoelectric (PZT) material as actuator is introduced. The distributed sensor using PZT material is considered to work as an estimator for the system state variables. The TB represented by the partial differential equation (PDE) is discretized using the central difference scheme to generate a finite dimensional model. This procedure provides the practical ability to implement the distributed sensing and actuation terms into the design. The optimal control theory is employed to determine the control voltages of the actuator such that the dynamic motion of the beams under Gaussian disturbance is stabilized. Furthermore, considering the unknown noise and errors existing in the measurement process, the state estimator is realized by the robust H/sub /spl infin// filter. The effectiveness of this strategy is illustrated by a simulation example.
Starting Page	1566
Ending Page	1571
File Size	501563
Page Count	6
File Format	PDF
ISBN	0780343948
ISSN	01912216
DOI	10.1109/CDC.1998.758513
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-12-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimal control Filters Vibration control Intelligent sensors State estimation Robust control Intelligent actuators Piezoelectric materials Piezoelectric actuators Sensor systems
Content Type	Text
Resource Type	Article

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