Title :
A single-element tuning fork piezoelectric linear actuator
Author :
Friend, James R. ; Satonobu, Jun ; Nakamura, Kentaro ; Ueha, Sadaynki ; Stutts, Arid Daniel S
Author_Institution :
Precision & Intelligence Lab., Tokyo Inst. of Technol., Yokohama, Japan
Abstract :
This paper describes the design of a piezoelectric tuning-fork, dual-mode motor. The motor uses a single multilayer piezoelectric element in combination with tuning fork and shearing motion to form an actuator using a single drive signal. Finite-element analysis was used in the design of the motor, and the process is described along with the selection of the device´s materials and its performance. Swaging was used to mount the multilayer piezoelectric element within the stator. Prototypes of the 25-mm long bidirectional actuator achieved a maximum linear no-load speed of 16.5 cm/s, a maximum linear force of 1.86 N, and maximum efficiency of 18.9%.
Keywords :
finite element analysis; piezoelectric actuators; piezoelectric motors; stators; vibrations; 16.5 cm/s; 18.9 percent; 25 mm; bidirectional linear actuator; dual-mode motor; finite element analysis; multilayer piezoelectric element; shearing motion; single-element piezoelectric tuning fork; stator; swaging process; Finite element methods; Hydraulic actuators; Nonhomogeneous media; Performance analysis; Piezoelectric actuators; Prototypes; Shearing; Stators; Swaging; Vibrations;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2003.1182121
