Abstract：An ultrasonic linear motor driven by a U-shaped stator’s 1st anti-symmetric longitudinal mode and 2nd symmetrical bending modes as the motor’s work modes, was proposed. The driving principle of the motor was explained, and the essential elliptical obits generated by the particles on the drive ends of the stator used to push the motor’s slider were derived. The optimal sizes characterizing the stator better work modal frequency consistency were acquired. The motor’s assemble structure was planned and designed, and a prototype of the motor was made. Harmonic response analysis and modal test were carried out on the stator which validated the existence of the work modes. A drive system was constructed to drive the motor, which demonstrated that the motor can run well. Speed characteristic experiment has been done for the motor. It shows that the motor can run at maximum speed of 125.6 mm/s as it is driven by a alternating voltage of 240 V with frequency of 78.11 kHz.
贺红林;何文丛;刘文光. U型变截面薄板面内复合模态驱动的直线超声电机[J]. , 2014, 33(18): 65-71.
HE Hong-lin HE Wen-cong LIU Wen-guang. Development of a Linear Ultrasonic Motor Driven by an U-shaped Stator’s In-plane Hybrid Vibration mode. , 2014, 33(18): 65-71.
2014, Vol. 33 
