Miniaturization of a U-shape linear piezoelectric motor with double feet
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- 作者：Yingxiang Liu ; liuyingxiang868@hit.edu.cn" class="auth_mail ; liuyingxiang868@163.com" class="auth_mailAuthor Vitae ; Weishan Chen cws@hit.edu.cn" class="auth_mailAuthor Vitae ; Peilian Feng fpl_hit@163.com" class="auth_mailAuthor Vitae ; Junkao Liu jkliu@hit.edu.cn" class="auth_mailAuthor Vitae
- 关键词：Piezoelectric motor ; U-shape ; Elliptical movement ; Bonded-type ; Vibration test
- 刊名：Sensors and Actuators A: Physical
- 出版年：1 August 2014
- 年：2014
- 卷：214
- 期：Complete
- 页码：95-100
- 全文大小：2244 K
文摘
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A U-shape linear piezoelectric motor with double driving feet is proposed and bonded-type structure to realize the miniaturization.
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Three orthogonal longitudinal vibrations are superimposed in the motor to produce elliptical movements on the two feet.
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Maximum speed and thrust force of 765 mm/s and 7.3 N are reached by a prototype with weight of 0.026 kg.
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The maximum power density of the prototype is 46.15 W/kg, which is about 6.4 times of a previous work.