Faculty Advisor

Mark Richman

Faculty Advisor

Zhikun Hou

Faculty Advisor

Nikolaos Gatsonis

Faculty Advisor

Michael Demetriou

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.

Publisher

Worcester Polytechnic Institute

Degree Name

MS

Department

Mechanical Engineering

Project Type

Thesis

Date Accepted

2005-04-27

Accessibility

Unrestricted

Subjects

control system design, flexible structures, piezoelectric, Control theory

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