Suppression of Chatter Vibration by Fuzzy Sliding Mode Control in Machining Processes

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Abstract:

Chattering elimination of machining processes is an important issue in turning operation, due to the damages caused by this phenomenon. Limited productivity rate, decrease in tool life, poor surface quality and noisy workplace are some adverse effects of the chatter vibration. In this paper two control strategies are developed to suppress chatter vibration in turning process including a worn tool. A single degree of freedom model of the turning process including tool wear is briefly described. In the first stage, sliding mode approach used to control the system, and in the second stage fuzzy sliding mode approach is used. The simulation results indicate that the fuzzy sliding mode performs better than the direct sliding mode controller.

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Advanced Materials Research (Volumes 418-420)

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1887-1895

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December 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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