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A PDE-based Methodology for Modeling, Parameter Estimation and Feedback Control in Structural and Structural Acoustic Systems

Institute for Computer Applications in Science and EngineeringH. T. Banks

出版	NASA Langley Research Center. Institute for Computer Applications in Science and Engineering [ICASE], 1994
URL	http://books.google.com.hk/books?id=2CoMOAAACAAJ&hl=&source=gbs_api

註釋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. PDE-Based structural model, Parameters estimation, Feedback control in experimental systems.