Chatter in the Strip Rolling Process, Part 3: Chatter Model

[+] Author and Article Information
I-S. Yun, K. F. Ehmann, W. R. D. Wilson

Department of Mechanical Engineering, Northwestern University, Evanston, Illinois 60208

J. Manuf. Sci. Eng 120(2), 343-348 (May 01, 1998) (6 pages) doi:10.1115/1.2830133 History: Received July 01, 1996; Revised July 01, 1997; Online January 17, 2008


The central problem of the analysis and prevention of chatter in rolling operations is in understanding the conditions which lead to dynamic instability. By analogy with metal cutting operations, it appears that a few basic mechanisms may be responsible for the occurrence of self-excited vibrations in rolling. The three most significant mechanisms are: negative damping, mode-coupling and regeneration. In this paper, negative damping and mode-coupling are considered separately in an “artificial” manner to make inroads toward a better basic understanding of rolling instability.

Copyright © 1998 by The American Society of Mechanical Engineers
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