Structure Design, Characteristics Measurement and Speed Control of a CW-CCW-Balancing Type Piezoelectric Actuator

• Main Authors: Shiang-Yu Cheng, 鄭香有
• Other Authors: Shann-Chyi Mou
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/87752573468817966984

碩士 === 清雲科技大學 === 機械工程系所 === 96 === In this study, we design a CW-CCW-Balancing type piezoelectric actuator. There are three ways to verify result. These include dynamic simulate, characteristic measurement and rotation speed control. The 3-4-5 piezoelectric actuator invented by Dr. M. S. Ouyang in 2002 at the National Tsing Hua University. The 3-4-5 piezoelectric actuator form they presented has CW-CCW unbalance effect. However, we are designed a CW-CCW-Balancing type piezoelectric actuator by ANSYS software. It already can improve question of the 3-4-5 piezoelectric actuators. We called this new structure type the 4-9-9-14 piezoelectric actuators. We would use ANSYS software to verify three questions, which included CW-CCW rotation speed, optimal driving location and Radial/Longitudinally displacement. Characteristic measurement is available in 3 categories. Friction; is measurement that we present a method to presume displacement value of the piezoelectric actuator observing surface friction condition by Scanning Electron Microscope (SEM). Temperature rise; is measurement that measures the temperature condition of the actuator surface by Thermal Video System. Finally we use an Impedance Analyzer to sweep, measure impedance and analysis the quality factor piezoelectric actuators. This paper would use the 4-9-9-14 piezoelectric actuator to drive piezoelectric actuating platform. The fuzzy controller is written by LabVIEW software. It connects with instruments and GPIB interface. And then the fuzzy controller would be complete speed control.