期刊
CIRP ANNALS-MANUFACTURING TECHNOLOGY
卷 69, 期 1, 页码 345-348出版社
ELSEVIER
DOI: 10.1016/j.cirp.2020.04.054
关键词
Feed drive; Control; Chatter
资金
- NSERC-CANRIMT2 network in Canada [NETGP 479639-15]
In large machine tools, where structural dynamics significantly influences the cutting stability, judicious selection of the servo control parameters can increase the damping, thereby improving the chatter stability. This paper presents a new strategy for feed drive controller tuning, which takes this effect into consideration. The proposed strategy generalizes successfully to machine tool structures with high order dynamics, and integrates model-free frequency domain estimation and analysis techniques with model-based root locus design, the latter which is achieved through an efficient and accurate identification approach. The proposed strategy has been tested in machining stability tests, demonstrating up to 30% increase in productivity. (C) 2020 CIRP. Published by Elsevier Ltd. All rights reserved.
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