TY - JOUR
T1 - L-shaped piezoelectric motor - Part II
T2 - Analytical modeling
AU - Avirovik, Dragan
AU - Karami, M. Amin
AU - Inman, Daniel
AU - Priya, Shashank
N1 - Funding Information:
Manuscript received March 19, 2011; accepted July 7, 2011. The authors gratefully acknowledge the financial support from the national Institutes of Health. The authors are with the center for Energy Harvesting Materials and systems (cEHMs), Virginia Tech, Blacksburg, Va (e-mail: spriya@ vt.edu). digital object Identifier 10.1109/TUFFc.2012.2161
PY - 2012/1
Y1 - 2012/1
N2 - This paper develops an analytical model for an L-shaped piezoelectric motor. The motor structure has been described in detail in Part I of this study. The coupling of the bending vibration mode of the bimorphs results in an elliptical motion at the tip. The emphasis of this paper is on the development of a precise analytical model which can predict the dynamic behavior of the motor based on its geometry. The motor was first modeled mechanically to identify the natural frequencies and mode shapes of the structure. Next, an electromechanical model of the motor was developed to take into account the piezoelectric effect, and dynamics of L-shaped piezoelectric motor were obtained as a function of voltage and frequency. Finally, the analytical model was validated by comparing it to experiment results and the finite element method (FEM).
AB - This paper develops an analytical model for an L-shaped piezoelectric motor. The motor structure has been described in detail in Part I of this study. The coupling of the bending vibration mode of the bimorphs results in an elliptical motion at the tip. The emphasis of this paper is on the development of a precise analytical model which can predict the dynamic behavior of the motor based on its geometry. The motor was first modeled mechanically to identify the natural frequencies and mode shapes of the structure. Next, an electromechanical model of the motor was developed to take into account the piezoelectric effect, and dynamics of L-shaped piezoelectric motor were obtained as a function of voltage and frequency. Finally, the analytical model was validated by comparing it to experiment results and the finite element method (FEM).
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U2 - 10.1109/TUFFC.2012.2161
DO - 10.1109/TUFFC.2012.2161
M3 - Article
C2 - 22293741
AN - SCOPUS:84856659103
SN - 0885-3010
VL - 59
SP - 108
EP - 120
JO - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JF - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
IS - 1
M1 - 6138732
ER -