This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Lobontiu, N. Articles by Garcia, E. Search for Related Content Social Bookmarking                         What's this?

Achieving Maximum Tip Displacement during Resonant Excitation of Piezoelectrically Actuated Beams

Vanderbilt University, Centerfor Intelligent Mechatronics, Department of Mechanical Engineering, PO Box 1592, Station B, Nashville, TN 37235

Michael Goldfarb

Vanderbilt University, Centerfor Intelligent Mechatronics, Department of Mechanical Engineering, PO Box 1592, Station B, Nashville, TN 37235goldfarb{at}vuse.vanderbilt.edu

Ephrahim Garcia

Vanderbilt University, Centerfor Intelligent Mechatronics, Department of Mechanical Engineering, PO Box 1592, Station B, Nashville, TN 37235

A linear, lumped-parameter, single-degree-of-freedom model is formulated to describe the dynamic response of the first mode of a piezoelectrically-actuated cantilevered beam. The modeled system consists of two identical, symmetrically disposed piezoelectric patch actuators bonded to a uniform beam with a tip mass. Specifically, the first mode of the system is described by an equivalent mass-spring-damper system where the equivalent mass, stiffness, damping, and force are functions of the parameters of the piezoelectrically-actuated system. Experimental data are used to verify model damping and displacement. The model is then used to show that the dynamic response of the system depends upon four independent non-dimensional geometric variables. Numerical simulations are performed to graphically demonstrate this dependence and to indicate an optimal configuration for achieving a maximum deflection at the beam's free end during resonant excitation.

Journal of Intelligent Material Systems and Structures, Vol. 10, No. 11, 900-913 (1999)
DOI: 10.1106/65GV-MPAX-4VNN-KVUD


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?