Development of a new standing wave type ultrasonic linear motor

被引：0

作者：

Roh, Y ^{[1
]}

Kwon, J ^{[1
]}

Lee, S ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Sch Mech Engn, Taegu 702701, South Korea

来源：

SMART STRUCTURES AND MATERIALS 2002: SMART STRUCTURES AND INTEGRATED SYSTEMS | 2002年 / 4701卷

关键词：

ultrasonic motor; standing wave; piezoelectric ceramic; bi-directional;

D O I：

10.1117/12.474670

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a new standing wave type linear motor that can move bi-directionally with identical performance in both the forward and backward directions. The motor consists of a metallic stator and two piezoceramic plates bonded to the stator with the spatial phase difference of a half wavelength. With two electric driving signals either in-phase or out-of-phase for the two piezoceramic plates, the piezoceramic plates excite two ultrasonic standing waves with a certain phase difference. They generate a new standing wave when combined. The operation principle of the motor is verified through finite element analyses. For an experimental illustration of the theoretical and numerical results, a sample motor is fabricated and characterized following the numerical design. The experimental results confirm the validity and practical applicability of the new motor structure.

引用

页码：345 / 352

页数：8

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