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A novel approach for ANFIS modelling based on Grey system theory for thermal error compensation

Abdulshahed, Ali, Longstaff, Andrew P and Fletcher, Simon (2014) A novel approach for ANFIS modelling based on Grey system theory for thermal error compensation. In: 14th UK Workshop on Computational Intelligence. UKCI (2014). IEEE, Bradford, :UK. ISBN 978-1-4799-5538-1 (In Press)

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The fast and accurate modelling of thermal errors in machining is an important aspect for the implementation of thermal error compensation. This paper presents a novel modelling approach for thermal error compensation on CNC machine tools. The method combines the Adaptive Neuro Fuzzy Inference System (ANFIS) and Grey system theory to predict thermal errors in machining. Instead of following a traditional approach, which utilises original data patterns to construct the ANFIS model, this paper proposes to exploit Accumulation Generation Operation (AGO) to simplify the modelling procedures. AGO, a basis of the Grey system theory, is used to uncover a development tendency so that the features and laws of integration hidden in the chaotic raw data can be sufficiently revealed. AGO properties make it easier for the proposed model to design and predict. According to the simulation results, the proposed model demonstrates stronger prediction power than standard ANFIS model only with minimum number of training samples.

Item Type: Book Chapter
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TS Manufactures
Schools: School of Computing and Engineering
School of Computing and Engineering > Centre for Precision Technologies > Engineering Control and Machine Performance Research Group
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Depositing User: Ali Abdulshahed
Date Deposited: 16 Sep 2014 14:26
Last Modified: 04 Nov 2015 22:45


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