Direct drive linear motors have good potential for use as next generation machine tool feed drives since they can increase machining rates and improve servo accuracy by eliminating gear related mechanical problems. To exploit the high speed and high response direct drives for machining, the servo control must achieve as high as possible tracking performance while at the same time establishing as much as possible the dynamic stiffness in order to maintain machining stability and reduce the effect of machining disturbance forces on the tool position. This paper investigates the use of optimal H∞ control to design for large stiffness and closed-loop tracking performance. Position feedback alone is first considered, with cutting force feedback later added to augment closed loop stiffness. Optimal position feedback is experimentally seen to achieve up to a 46 percent stiffness improvement over that achievable with proportional-derivative control. The addition of force feedback to the servo-loop resulted in a further 70 to 100 percent stiffness improvement over the position feedback alone values.
Skip Nav Destination
Article navigation
December 1996
Technical Papers
Control of Linear Motors for Machine Tool Feed Drives: Design and Implementation of H∞ Optimal Feedback Control
D. M. Alter,
D. M. Alter
Currently with the Dept. of Mech. Eng., Lafayette College, Easton, PA
Search for other works by this author on:
Tsu-Chin Tsao
Tsu-Chin Tsao
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
Search for other works by this author on:
D. M. Alter
Currently with the Dept. of Mech. Eng., Lafayette College, Easton, PA
Tsu-Chin Tsao
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801
J. Dyn. Sys., Meas., Control. Dec 1996, 118(4): 649-656 (8 pages)
Published Online: December 1, 1996
Article history
Received:
June 1, 1994
Online:
December 3, 2007
Citation
Alter, D. M., and Tsao, T. (December 1, 1996). "Control of Linear Motors for Machine Tool Feed Drives: Design and Implementation of H∞ Optimal Feedback Control." ASME. J. Dyn. Sys., Meas., Control. December 1996; 118(4): 649–656. https://doi.org/10.1115/1.2802339
Download citation file:
Get Email Alerts
Offline and Online Exergy-Based Strategies for Hybrid Electric Vehicles
J. Dyn. Sys., Meas., Control (May 2025)
Multi Combustor Turbine Engine Acceleration Process Control Law Design
J. Dyn. Sys., Meas., Control
A Distributed Layered Planning and Control Algorithm for Teams of Quadrupedal Robots: An Obstacle-Aware Nonlinear Model Predictive Control Approach
J. Dyn. Sys., Meas., Control (May 2025)
Active Data-Enabled Robot Learning of Elastic Workpiece Interactions
J. Dyn. Sys., Meas., Control (May 2025)
Related Articles
Stability of Turning Processes with Actively Controlled Linear Motor Feed Drives
J. Eng. Ind (August,1994)
Dynamic and Compliant Characteristics of a Cartesian-Guided Tripod Machine
J. Manuf. Sci. Eng (May,2006)
Design of a Force Feedback Chatter Control System
J. Dyn. Sys., Meas., Control (March,1972)
In-Process Compensation for Milling Cutter Runout via Chip Load Manipulation
J. Eng. Ind (May,1994)
Related Proceedings Papers
Related Chapters
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Development of Portable Facing Machine Tool for Machining of Tube Sheet and Shell of a Heat Exchanger
International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
Research on Cutting-Tooth Outline Distortion of Internal Helical Gearing Machine Tool
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3