Worcester Polytechnic Institute Electronic Theses and Dissertations Collection

Title page for ETD etd-042705-110658


Document Typethesis
Author NameSweeney, Robert John
URNetd-042705-110658
TitleStatic H-infinity Control of a Cantilevered Beam Using an Analytical Upper Bound Approach
DegreeMS
DepartmentMechanical Engineering
Advisors
  • Michael Demetriou, Advisor
  • Nikolaos Gatsonis, Graduate Committee Rep
  • Mark Richman, Committee Member
  • Zhikun Hou, Committee Member
  • Keywords
  • control system design
  • flexible structures
  • piezoelectric
  • Date of Presentation/Defense2005-04-08
    Availability unrestricted

    Abstract

    This paper considers the control of externally symmetric vector second order systems using an analytical upper bound method. The structural model is a cantilevered aluminum beam with a collocated pair of piezoceramic patches to serve as actuators and sensors. A computationally efficient method for approximating the H-infinity norm for externally symmetric systems is presented. The approximation method is then used to calculate a scalar output feedback controller to guarantee a closed-loop norm less than any user defined value. This method is tested with a finite-element representation of the beam, and then verified experimentally.

    Files
  • RSweeney.pdf

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