Design and Analysis of a Hybrid-Type Piezoelectric Ultrasonic Motor

• Main Authors: FENG WEI HSU, 許風瑋
• Other Authors: Shun-Fa Hwang
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/58470657058211987110

碩士 === 國立雲林科技大學 === 機械工程系碩士班 === 90 === 　　Recently piezoelectric materials are extensively applied in industry. They have the properties to interchange between electric and mechanical energy. Piezoelectric elements have both actuating and sensing functions. Furthermore, it is inevitable for high-technology industry to request thin, small, light and motors with quick-response and non-electromechanical interference. Therefore, ultrasonic motors with piezoelectric actuator have substituted traditional electro-magnetic motors in many applications. Hybrid-type ultrasonic motor has the biggest driving force among the other types of motors. The aim of this research is to design a hybrid-type ultrasonic motor. Firstly, piezoelectric ceramics materials with higher electro-mechanical coupling factor（k）and piezoelectric constant（d）are chosen. Then high frequency voltages are input to produce better driving force. Secondly, stator and rotor with better response properties are designed by using driving theory of motors. After fabrication, frequencies are measured and compared with the results of FEM. Lastly, some ideas are provided to be as reference.