Chinese Journal of Theoretical and Applied Mechani ›› 1998, Vol. 30 ›› Issue (6): 719-727.DOI: 10.6052/0459-1879-1998-6-1995-182

• Research paper • Previous Articles     Next Articles

A DYNAMIC CONTROL MODEL OF PIEZOELECTRIC CANTILEVERED BEAM-PLATE BASED ON WAVELET THEORY

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  1. 兰州大学力学系,730000
  • Received:1900-01-01 Revised:1900-01-01 Online:1998-11-25 Published:1998-11-25

Abstract: Based on the scaling function transform of the Daubechies wavelet theory, an oneto-one explicit relation betWeen electric signals measured in piezoelectric sensors and denectionof the plates is established in this paper, which overcomes the deficiency of conventional methodof modal analysis which sometimes leads to failure of measuring deformation of the plate whenthe inverse matrix in the method does not exist. After that, a dynamic control model for thepiezoelectric plates with feedback of negative deflec...

Key words: wavelet theory, scaling function transform, piezoelectric structures, dynamic control, numerical simulations