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

被引:4
|
作者
Chen Chao [1 ]
Shi Yunlai [1 ]
Chen Haipeng [1 ]
Zhao Chunsheng [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China
来源
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2014年 / 29卷 / 06期
基金
中国国家自然科学基金;
关键词
piezoelectric material; converse piezoelectric effect; shear vibration; linear ultrasonic; DESIGN;
D O I
10.1007/s11595-014-1066-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A novel linear ultrasonic motor based on d 15 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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