Research on Linear Ultrasonic Motor Using In-plane Mode

The rectangular piezoelectric resonators with longitudinal and bending mode were researched and the structure was improved.Put forward a novel linear ultrasonic motor and is introduced its structure and principle.The solid model of the piezoelectric resonator was built and the analyses of modal and harmonic responses for the piezoelectric resonator were executed.First-order longitudinal mode and second-order bending mode of the piezoelectric resonator were degenerated.The frequencies of the piezoelectric resonator on the B2 mode and L1 mode with the elastic cut holes are lower than ones with the elastic without holes.The frequency of the B2 and L1 vibration mode of the piezoelectric resonator was optimized.Result of this research is base for making ultrasonic prototype and the experiment of ultrasonic.