NDLI: Lqr control of shell vibrations via piezoceramic actuators

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Lqr control of shell vibrations via piezoceramic actuators

Content Provider	NASA Technical Reports Server (NTRS)
Author	Smith, R. C. delRosario, R. C. H.
Copyright Year	1997
Description	A model-based Linear Quadratic Regulator (LQR) method for controlling vibrations in cylindrical shells is presented. Surface-mounted piezo-ceramic patches are employed as actuators which leads to unbounded control input operators. Modified Donnell-Mushtari shell equations incorporating strong or Kelvin-Voigt damping are used to model the system. The model is then abstractly formulated in terms of sesquilinear forms. This provides a framework amenable for proving model well-posedness and convergence of LQR gains using analytic semigroup results combined with LQR theory for unbounded input operators. Finally, numerical examples demonstrating the effectiveness of the method are presented.
File Size	960251
Page Count	24
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970016361
Archival Resource Key	ark:/13960/t89h0kp5c
Language	English
Publisher Date	1997-03-01
Access Restriction	Open
Subject Keyword	Numerical Analysis Actuators Control Systems Design Feedback Control Piezoelectric Ceramics Cauchy Problem Convergence Cylindrical Shells Vibration Damping Donnell Equations Galerkin Method Polynomials Matrices Mathematics Linear Quadratic Regulator Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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