Title

A Technique for Vibration Cancellation Using a Second Order Piezoelectric Actuator Model

Abstract

This thesis shows 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 digital-to-analog converters to realize digital control of the 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 0.5 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.

Notes

This item is only available in print in the UCF Libraries. If this is your thesis or dissertation, you can help us make it available online for use by researchers around the world by downloading and filling out the Internet Distribution Consent Agreement. You may also contact the project coordinator Kerri Bottorff for more information.

Graduation Date

1990

Semester

Fall

Advisor

Harris, Michael

Degree

Master of Science (M.S.)

College

College of Engineering

Department

Electrical Engineering

Degree Program

Electrical Engineering

Format

Print

Language

English

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Subjects

Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic

This document is currently not available here.

Share

COinS