Numerical Study on the Performance Enhancement of Ultrasonic Motors Using Single Crystalline Piezo-Materials

This paper examines the performance enhancement of a newly designed ultrasonic motor by using single crystalline piezo-materials Pb(Mg
_1/3
Nb
_2/3
)O
₃
-PbTiO
₃
(PMNPT) and Pb(Zn
_1/3
Nb
_2/3
)O
₃
-PbTiO
₃
(PZNPT). From numerical simulations, it is found that PMNPT and PZNPT can greatly improve the mechanical performance of the motor.