PDE-based methodology for modeling, parameter estimation and feedback control in structural and structural acoustic systems

H. Thomas Banks; Donald E. Brown; V. L. Metcalf; Richard J. Silcox; Ralph C. Smith; Yun Wang

doi:10.1117/12.174224

1 May 1994 PDE-based methodology for modeling, parameter estimation and feedback control in structural and structural acoustic systems

H. Thomas Banks, Donald E. Brown, V. L. Metcalf, Richard J. Silcox, Ralph C. Smith, Yun Wang

Author Affiliations +

Proceedings Volume 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures; (1994) https://doi.org/10.1117/12.174224
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

A problem of continued interest concerns the control of vibrations in a flexible structure and the related problem of reducing structure-borne noise in structural acoustic systems. In both cases, piezoceramic patches bonded to the structures have been successfully used as control actuators. Through the application of a controlling voltage, the patches can be used to reduce structural vibrations which in turn leads to methods for reducing structure-borne noise. A PDE-based methodology for modeling, estimating physical parameters, and implementing a feedback control scheme for problems of this type is discussed. While the illustrating example is a circular plate, the methodology is sufficiently general so as to be applicable in a variety of structural and structural acoustic systems.

Citation Download Citation

H. Thomas Banks, Donald E. Brown, V. L. Metcalf, Richard J. Silcox, Ralph C. Smith, and Yun Wang "PDE-based methodology for modeling, parameter estimation and feedback control in structural and structural acoustic systems", Proc. SPIE 2192, Smart Structures and Materials 1994: Mathematics and Control in Smart Structures, (1 May 1994); https://doi.org/10.1117/12.174224

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