Characteristics of a bolt-clamped torsional vibrator using shear-mode piezo-ceramics sandwiched in the axial direction

被引：5

作者：

Aoyagi, M

Suzuki, T

Tomikawa, Y

机构：

[1] Dept. of Elec. Eng. and Info. Sci., Faculty of Engineering, Yamagata University, Yonezawa, Yamagata 992

来源：

ULTRASONICS | 1996年 / 34卷 / 2-5期

关键词：

torsional vibrator; shear mode ceramics; finite element analysis;

D O I：

10.1016/0041-624X(95)00083-F

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A torsional vibrator using shear-mode piezo-ceramics sandwiched in the axial direction was developed by NEC Corporation for a mechanical filter 20 years ago. This torsional vibrator has a good vibration performance. We apply this torsional vibrator to a high power transducer shaped as a short cylinder with a large diameter. In this case, the torsional vibrator can easily be fabricated by bolt-clamping in its radius direction, and the small number of parts is a benefit in the fabrication. We report here results of FEM analysis and the characteristics of a prototype of such a torsional vibrator. As a result, it is clarified that this torsional vibrator has a good vibration performance and might be suitable as an ultrasonic high-power transducer.

引用

页码：219 / 222

页数：4