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RESEARCH PAPERS

Active Control of Machine-Tool Chatter

[+] Author and Article Information
C. L. Nachtigal

Department of Mechanical Engineering, Automatic Control Center, Purdue University, Lafayette, Ind.

N. H. Cook

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

J. Basic Eng 92(2), 238-244 (Jun 01, 1970) (7 pages) doi:10.1115/1.3424982 History: Received July 29, 1969; Online October 27, 2010

Abstract

Regenerative chatter is recognized as one of the primary performance limitations of a machine tool. In the past much attention has been focused on minimizing this problem by improving the dynamic compliance of the structure. These approaches have been of a passive nature, such as increasing the structural damping, increasing the rigidity, addition of a vibration absorber, etc. The present work is one of two known basic contributions to the literature in the field of active chatter control. This paper includes an analysis of a machine tool equipped with an active chatter control system. In addition, experimental results are presented for such a control system applied to an engine lathe. The analysis, verified by the experimental results, indicated significant improvements in production rate, in transient response, and in static stiffness.

Copyright © 1970 by ASME
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