Design and verification of the stator structure for a shaft-driving type piezoelectric actuator by using the concept of zone-energy

• Main Authors: Chun-Jung Chu, 朱俊龍
• Other Authors: Hon-Seng Lo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/57574455818299445184

碩士 === 健行科技大學 === 機械工程所 === 102 === The study used a new thin-disc ultrasonic actuator which is the shaft driving ultrasonic actuator system using piezoelectric buzzer as the actuating device. This ultrasonic actuator used the three phase continuous reflection wave formed by the special position locked metal screws on the back panel to drive the input energy converted to kinetic energy of the rotor shaft and had stator and rotor can be designed independently. In order to make a continuous phase of a reflected wave to reach the consistency of 1:1:1, the study changed the previous distance and the angle of offset point of the piezoelectric actuator first, and then moved the offset point back to the center of circle and fixed offset mounting screws. The driving energy of the reflected wave showed by the sectoroid area and the piezoelectric buzzer energy area was calculated by Toolkey which is built in the computer graphics software SolidWorks. Then using the dynamic simulation software ANSYS to verify that indeed three-phase continuous driving volatility for eccentric screw around and Z-axis tilt deflection behavior, and found the best angle of eccentric point was 120 ° and the distance of eccentric point was 1.25 mm.