By Topic

Control Approaches to the Suppression of Machining Chatter Using Active Magnetic Bearings

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Min Chen ; Dept. of Mech. & Aerosp. Eng., Virginia Univ., Charlottesville, VA ; Knospe, C.R.

Several control approaches to the active suppression of machining chatter, a self-excited vibration that limits metal removal rate, are examined using a specially constructed turning experiment. The experiment employs a magnetic bearing for actuation and mimics the dynamics of a flexible rotor. Control forces are applied and vibration measurements taken at a location along this structure that is not collocated with the tool. Three control approaches are considered: speed-independent control, speed-specified control, and speed-interval control. Experimental results with these are compared to those obtained using proportional-integral-derivative (PID) control, a standard approach in the magnetic bearing industry today. Significant improvements over PID in machining stability lobes are obtained and the capability to highly tailor the cutting tool compliance so as to inhibit the onset of chatter is demonstrated. Cutting tests are also presented which demonstrate the significant improvements in chatter-free chip width that may be obtained with advanced control methods

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:15 ,  Issue: 2 )