Impact drive rotary precision actuator with piezoelectric bimorphs

被引：9
|
作者：
Zhang H. [1 ]
Zeng P. [1 ]
Hua S. [1 ]
Cheng G. [1 ]
Yang Z. [1 ]
机构：
[1] College of Mechanical Science and Engineering, Jilin University
来源：
Frontiers of Mechanical Engineering in China | 2008年 / 3卷 / 1期
基金：
中国国家自然科学基金;
关键词：
Cantilever; Finite element analysis; Impact driving; Piezoelectric bimorph;
D O I：
10.1007/s11465-008-0008-3
中图分类号：
学科分类号：
摘要：
An impact drive rotary precision actuator with end-loaded piezoelectric cantilever bimorphs is proposed. According to finite element analysis and experiments of the dynamic characteristics of end-loaded piezoelectric cantilever bimorphs, a specific fixed-frequency and adjustable-amplitude is confirmed to control the actuator. The results show that an actuator excited by fixed-frequency and the adjustable-amplitude ramp voltage waveform works with a large travel range (180°), high resolution (1 μrad), speed (0.2 rad/min) and heavy-load ability (0.02 Nm). With advantages of high-precision positioning ability, simple structure and only one percent the cost of traditional impact drive mechanisms, the actuator is expected to be widely used in precision industries. © 2008 Higher Education Press and Springer-Verlag.
引用
收藏
页码：71 / 75
页数：4
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