Miniaturization of a U-shape linear piezoelectric motor with double feet

被引：18

作者：

Liu, Yingxiang ^{[1
]}

Chen, Weishan ^{[1
]}

Feng, Peilian ^{[1
]}

Liu, Junkao ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Robot & Syst, Harbin 150001, Heilongjiang Pr, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2014年 / 214卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Piezoelectric motor; U-shape; Elliptical movement; Bonded-type; Vibration test; LONGITUDINAL VIBRATION TRANSDUCERS; HIGH-SPEED;

D O I：

10.1016/j.sna.2014.04.011

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：

A U-shape linear piezoelectric motor with double driving feet is proposed and tested. It adopts bonded-type structure to realize the miniaturization. Six pieces of PZT ceramic plates are bonded on a U-shape duralumin alloy base to form the motor. This structure makes it has simple fabrication and assemblage processes. The proposed motor produces elliptical movements on the two driving feet by the superimposing of longitudinal vibrations. The resonance frequencies of the two vibration modes are tuned to be close at about 54 kHz. Transient analysis is developed to illustrate the movements of the driving feet. The vibration characteristics of a prototype are measured by a scanning laser Doppler vibrometer. The no-load speed and the maximum output thrust force of the prototype are tested to be 765 mm/s and 7.3 N, respectively. The weight of the miniaturized U-shape piezoelectric motor is about 0.026 kg; its power density is about 6.4 times that of the previous one with bolt-clamped structure. (C) 2014 Elsevier BM. All rights reserved.

引用

页码：95 / 100

页数：6

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