Active magnetic bearings for machining applications

被引：96

作者：

Knospe, Carl R. ^{[1
]}

机构：

[1] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22903 USA

来源：

CONTROL ENGINEERING PRACTICE | 2007年 / 15卷 / 03期

基金：

美国国家科学基金会;

关键词：

magnetic bearings; multivariable control; machining; model-based control; mechanical systems;

D O I：

10.1016/j.conengprac.2005.12.002

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

High-speed machining offers substantial economic benefits due to increased metal cutting productivity. Critical to realizing this technology's promise are the intertwined challenges of spindle dynamic stiffness and cutting process stability. Active magnetic bearings enable greater spindle dynamic stiffness through higher attainable bearing surface speeds, and also provide a means for enhancing cutting process stability. Herein, experimental results from two test rigs are presented illustrating the potential of magnetic bearings for the active suppression of machining chatter. Application challenges and controller design issues are examined in detail. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：307 / 313

页数：7

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