1 May 1994 PDE-based methodology for modeling, parameter estimation and feedback control in structural and structural acoustic systems
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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.
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H. Thomas Banks, Donald E. Brown, V. L. Metcalf, Richard J. Silcox, Ralph C. Smith, 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); doi: 10.1117/12.174224; https://doi.org/10.1117/12.174224
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