Investigation of the piezoelectric smooth impact drive mechanism

• Main Authors: Chien-Ren Chen, 陳建仁
• Other Authors: Hsien-Kuang Liu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/48848037256949889152

碩士 === 逢甲大學 === 機械工程學所 === 95 === In the high-precision industry, the piezoelectric actuator is widely used for the position control because the piezoelectric element has the characteristics of good performance in controlling precise motion and high-frequency response. Smooth impact drive mechanisms (SIDM) is a linear actuators that utilize kinematic model of the slow expansion followed by rapid contraction of a piezoelectric element and the friction between a rod attached to the piezoelectric element and a linked mobile body. Smooth impact drive mechanisms (SIDM), small and capable of being driven with high precision, may find applications in micro-positioning devices and other precision products. The purpose of this study is to investigate kinematics of the smooth impact drive mechanism experimentally and theoretically. The theoretical analysis incorporated with the effects of friction and hysteresis is conducted.