Optimum Damping of Beam Vibrations Using Piezoceramic Transducers

In this thesis a piezo-electro-mechanical system, constituted of an aluminum beam with five piezoelectric patches glued on it, each of them shunted with an RL electrical circuit, has been numerically and experimentally investigated, in order to determine the optimal electric tuning parameters for vibration damping. A numerical code based upon Galerkin weighted-residual method is developed and the complete piezo-electro-mechanical system is designed, realized and finally tested by a standard modal testing technique. Comparisons between different shunting configurations of the system are given and finally the experimental data are compared with ones obtained by the developed numerical code in order to verify the accuracy of the latter.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Engineering Mechanics

Department dc:contributor.department

Engineering Science and Mechanics

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

2016

Author dc:creator

• Rufinelli, Marco

Chair dc:contributor.committeechair

• Batra, Romesh C.

Committee members dc:contributor.committeemember

• Case, Scott W.
• Stremler, Mark A.

• Piezoelectric Transducers
• Vibrations Control
• Piezo-electromechanical coupling
• Frequency response function
• Modal Testing

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Dc Identifier Other

vt_gsexam:7212

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/64936