Title :
Control design for a bar turning process using laser-based measurements
Author :
Fan, Chun ; Collins, Emmanuel G., Jr.
Author_Institution :
Dept. of Mech. Eng., Florida A&M Univ., Tallahassee, FL, USA
Abstract :
Develops a geometric adaptive control system for a bar turning system operating in a dry cutting environment. The diameter of the workpiece is directly measured by a noncontact laser sensor and a simple beam vibration model is used to approximate the workpiece deflection which is the primary source of errors. A PID control law is designed in conjunction with a Kalman filter, used to compensate for the measurement delay. Simulation results and initial experimental results are promising
Keywords :
Kalman filters; adaptive control; computerised numerical control; control system synthesis; cutting; diameter measurement; error compensation; machining; measurement by laser beam; optical sensors; process control; state-space methods; three-term control; PID control law; bar turning process; beam vibration model; geometric adaptive control system; laser-based measurements; measurement delay; noncontact laser sensor; workpiece deflection; Adaptive control; Aerospace industry; Control design; Current measurement; Delay; Laser beam cutting; Shipbuilding industry; Structural beams; Turning; Vibration measurement;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.879455
