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Proceedings Paper

Linear modeling and control of a cantilever beam with bonded piezoelectrics using finite elements software
Author(s): Andrew P. H. Weightman; Robin G. Scott; Martin C. Levesley; Warren J. Manning
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Paper Abstract

The ability to model, investigate and control the behavior of dynamic systems in a simulation environment is highly desirable due to time and cost benefits. A new technique has been developed allowing finite element models to be integrated with Simulink for dynamic simulation and control. The technique is presented by the modeling of a fixed-free cantilever beam with bonded piezoelectric patches. A description of the modeling technique is presented detailing the process of model creation, including input and output variable determination, and exportation to Simulink as a state-space model. A comparison of simulated and experimental open-loop behavior is provided. Furthermore the free and forced system behavior both observed, and simulated with velocity feedback controllers (VFB) is presented. Conclusions are drawn regarding the capabilities and restrictions of the developed technique in comparison to modeling using a system identification technique. The author's views on the techniques application to non-linear system modeling and potential for optimizing sensor and actuator locations are presented.

Paper Details

Date Published: 26 July 2004
PDF: 11 pages
Proc. SPIE 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control, (26 July 2004); doi: 10.1117/12.539148
Show Author Affiliations
Andrew P. H. Weightman, Univ. of Leeds (United Kingdom)
Robin G. Scott, RMIT Univ. (Australia)
Martin C. Levesley, Univ. of Leeds (United Kingdom)
Warren J. Manning, Manchester Metropolitan Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 5383:
Smart Structures and Materials 2004: Modeling, Signal Processing, and Control
Ralph C. Smith, Editor(s)

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