Identification and control of two-dimensional smart structures using distributed sensors

Robert K. Butler, Vittal S. Rao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In recent years, polyvinylidene fluoride (PVDF) film has been extensively used in the development of distributed sensors. However, very few results are available for shaping distributed sensors for control of two dimensional structures. In this study, we have utilized simple geometric shapes for the implementation of feedback controllers on a cantilevered plate system. Multiple distributed sensors along with their time derivatives are used for system identification and the implementation of complex controllers. The resulting direct implementation minimizes the electronic hardware requirements of the controller. A system identification technique for deriving a state variable representation of the structural system using distributed sensors is studied. The state variables of the model are defined as the quantities being measured by the distributed sensors. This technique was originally developed for one-dimensional structures and is extended to the two-dimensional plate system in this paper. The availability of the states of the system simplifies the state space control system design and the implementation of full-state feedback controllers. Linear quadratic regulator (LQR) and H controllers can be implemented with simple analog hardware. A full state feedback LQR controller is implemented on the experimental system which incorporates all of the necessary signal conditioning electronics. The results of simulation and experimental results are presented.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages58-69
Number of pages12
ISBN (Print)0819417912
StatePublished - Jan 1 1995
EventSmart Structures and Materials 1995: Mathematics and Control in Smart Structures - San Diego, CA, USA
Duration: Feb 27 1995Mar 1 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2442
ISSN (Print)0277-786X

Conference

ConferenceSmart Structures and Materials 1995: Mathematics and Control in Smart Structures
CitySan Diego, CA, USA
Period02/27/9503/1/95

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Cite this

Butler, R. K., & Rao, V. S. (1995). Identification and control of two-dimensional smart structures using distributed sensors. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 58-69). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2442). Society of Photo-Optical Instrumentation Engineers.