A fast tool feeding mechanism using piezoelectric actuators in noncircular turning

被引：24

作者：

Ma, HQ ^{[1
]}

Hu, DJ ^{[1
]}

Zhang, K ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mech & Dynam Engn, Shanghai 200030, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2005年 / 27卷 / 3-4期

关键词：

feed-forward control; noncircular turning; piezo actuator; repetitive control;

D O I：

10.1007/s00170-004-2168-6

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

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

页码：254 / 259

页数：6

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