A fast tool feeding mechanism using piezoelectric actuators in noncircular turning

被引：7
|
作者：
Haoquan Ma
Dejin Hu
Kai Zhang
机构：
[1] Shanghai Jiaotong University,School of Mechanical and Dynamic Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2005年 / 27卷
关键词：
Feed-forward control; Noncircular turning; Piezo actuator; Repetitive control ;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Piezoelectric actuators have wide applications because of their indefinite resolution and high stiffness, for use in optical devices, measurement systems and ultra-precision machine tools. In noncircular turning, the tools feeding servo should be long-travel, high-frequency and high-precision. In order to meet these requirements, a new flexure-hinge structure is used to amplify the output displacement of piezoelectric actuators. A hybrid of feed-forward control in the disturbance channel, repetitive control and Proportion and Integration control (PI) are also employed to better the tracking precision and robustness of the system.
引用
收藏
页码：254 / 259
页数：5
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