Title

Vibration Cancellation Effectiveness Using A Second Order Piezoelectric Actuator Model

Abstract

It is shown that it is feasible to use a piezoelectric actuator that is bonded to a vibrating surface in order to produce a non-vibrating composite surface. The proposed feedback system for vibration cancellation employs multiplying DACs (digital to analog converters) to realize digital control of analog compensation circuitry. The equivalent electronic model for the piezoactuator is presented along with a description and analysis of the vibration cancellation circuitry. Cancellation effectiveness of the feedback system that uses a Sallen and Key circuit to simulate the piezoactuator is experimentally determined as a function of frequency for piezoactuator quality factors ranging from .5 to 5. Utilizing digital control, a 40 dB reduction of the input disturbance at the resonant frequency of the piezoactuator model has been achieved for Q=5.

Publication Date

12-1-1991

Publication Title

Midwest Symposium on Circuits and Systems

Volume

1

Number of Pages

88-91

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

Socpus ID

0026407422 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0026407422

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