Analysis of the Interaction of Ultrasonic Motor Stator Design Parameters Impact on Modal Frequency

The ring-type traveling wave ultrasonic motor stator tooth,ratio of tooth width and slot width,inner and outer diameter of stator,position of flexible support and pre-pressure the stator suffered have been analyzed.The finite element method and the orthogonal design method have been adopted in the interaction effect of stator design parameters analysis.The interaction extent of the design parameters has been obtained.The conclusion stator tooth height and the interaction effect of the tooth height and stator inner diameter are the significant role of improving the modal-aliasing has been obtained.