Application of Piezoelectric Materials in a Novel Linear Ultrasonic Motor based on Shear-induced Vibration Mode

被引：0
|
作者：
陈超 [1 ]
SHI Yunlai [1 ]
CHEN Haipeng [1 ]
ZHAO Chunsheng [1 ]
机构：
[1] State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
来源：
Journal of Wuhan University of Technology(Materials Science) | 2014年 / 29卷 / 06期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
piezoelectric material; converse piezoelectric effect; shear vibration; linear ultrasonic;
D O I：
暂无
中图分类号：
TM35 [特殊电机];
学科分类号：
080801 ;
摘要：
A novel linear ultrasonic motor based on d15 effect of piezoelectric materials was presented. The design idea aimed at the direct utilization of the shear-induced vibration modes of piezoelectric material. Firstly, the inherent electromechanical coupling mechanism of piezoelectric material was investigated, and shear vibration modes of a piezoelectric shear block was specially designed. A driving point’s elliptical trajectory induced by shear vibration modes was discussed. Then a dynamic model for the piezoelectric shear stator was established with finite element(FE) method to conduct the parametric optimal design. Finally, a prototype based on d15 converse piezoelectric effect is manufactured, and the modal experiment of piezoelectric stator was conducted with laser doppler vibrometer. The experimental results show that the calculated shear-induced vibration modes can be excited completely, and the new linear ultrasonic motor reaches a speed 118 mm/s at noload, and maximal thrust 12.8 N.
引用
收藏
页码：1191 / 1195
页数：5
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