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Suppression of Induced Vibrations using Dynamic Shape Control with Distributed Piezoelectric Actuation
Author(s) -
Nader M.,
v. Garssen H.G.,
Irschik H.
Publication year - 2005
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200510038
Subject(s) - cantilever , vibration , piezoelectricity , eigenstrain , controller (irrigation) , control theory (sociology) , frequency domain , computation , vibration control , acoustics , distribution (mathematics) , computer science , physics , structural engineering , control (management) , engineering , mathematics , materials science , mathematical analysis , algorithm , agronomy , artificial intelligence , biology , residual stress , composite material
In the present contribution, the complete suppression of elastic vibrations of structures by means of an additional piezoelectric eigenstrain distribution is considered. A vibrating cantilever is used as a descriptive example. First, according to the theory of dynamic shape control, a continuous distribution for the actuation is derived. Then, positions for discrete piezoelectric patches are suggested. The introduced theoretical strategy is validated by .nite element computations and an appropriate laboratory experiment. Based on frequency response measurements, a feedback controller is designed in the frequency domain. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)