Simulation of Moving Characteristics for Impact Drive MechanismBased on Electromechanical Equivalent Circuit

• Main Authors: Jhih-Sin Wu, 吳志信
• Other Authors: Jyh-Horng Chou
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/66813108428235887444

碩士 === 國立高雄第一科技大學 === 系統與控制工程研究所 === 94 === Abstract In this thesis, the investigations on the single-layer and multi-layer of PZT elements based on Martin’s equivalent circuit were carried out. According to the multi-layer equivalent circuit, the motion characteristics of impact drive mechanism (IDM) were examined. By comparing the experimental result to the simulation result based on MATLAB package, the derived equivalent model was effectively verified. When the first voltage waveform for the actuation of forward motion was given to the IDM, the simulation error in displacement was obtained as 1.92%; on the other hand, when the second voltage waveform for the actuation of backward motion was given, the simulation error in displacement was obtained as 0%. The equivalent circuits studied in this thesis can represent both the electrical and mechanical characteristics of the PZT elements simultaneously. It will be very useful in the developments of power sources using PZT elements, the designs of micro-generator based on piezoelectric effect, and the characteristic studies on precision positioning devices using PZT impact force.