Development of a Forecasting Compensatory Control System for Cylindrical Grinding

[+] Author and Article Information
K. H. Kim, S. M. Wu

Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706

K. F. Eman

Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60201

J. Eng. Ind 109(4), 385-391 (Nov 01, 1987) (7 pages) doi:10.1115/1.3187143 History: Received July 15, 1987; Online July 30, 2009


A forecasting compensatory control (FCC) system was developed to improve workpiece roundness in cylindrical grinding operations. The spindle radial error motion (SREM) at the grinding position, identified as the dominant error source was modeled by an autoregressive model and compensated for by a forecasting algorithm. A digital method for measuring SREM at the grinding position which incorporates master roundness compensation was proposed and a piezo-electric drive system for the generation of the compensatory mechanical motion was developed. The implementation of the proposed method resulted in a substantial improvement of workpiece roundness.

Copyright © 1987 by ASME
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