关键词: 行波超声波电动机, 中空形, 锥形, 模态分析, 谐响应分析, 电压

Abstract:

A new type of hollow traveling-wave ultrasonic motor was studied. The stator of the motor is circular and the inner hole is a positive sixteen-sided shape. Sixteen piezoelectric ceramics were pasted on the inner surface of the stator in turn. The stator teeth were tapered and were arranged circumferentially on the outer surface of the ring. ANSYS software was used to perform modal analysis of the stator to determine the fourth-order in-plane bending mode as the operating mode of the motor. The harmonic response of the stator was analyzed and the variation of the particle displacement with voltage was studied by applying different voltage values. Research proves the rationality of motor design.

Key words: traveling wave ultrasonic motor, hollow type, taper, modal analysis, harmonic response analysis, voltage