Motion modeling for teeth of traveling wave ultrasonic motors

作     者：CHU Xiangcheng CHEN Zaili XIE Tao NIE Yinghua(School of Mechatronics, Harbin Institute of Technology Harbin 150006) 

出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)

年 卷 期：1999年第18卷第4期

页      面：327-335页

学科分类：07[理学] 070206[理学-声学] 0702[理学-物理学] 

主　　题：wave mode 

摘      要：A motion modeling for projection-teeth of travaling wave ultrasonic motors is developed, which is significant for an expansion of interface modeling between the rotor and stator. And the relationship between teeth height and displacement of a contact poiot, resonant frequency, is obtained by using the Finite Elemeat Method (FEM) corresponding to various vibration modes. It is found that teeth height, from 3 mm to 9 mm, has great impact on displacements along circumferential directions, particularly for (9,0) vibration mode, while displacement along radial direction tends to saturation for teeth height of about 6 mm. Based on the motion modeling, an ultrasonic motor with 3-D interface (3D USM) of new type is fabricated.