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Mathematical and Computational Applications is published by MDPI from Volume 21 Issue 1 (2016). Articles in this Issue were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence. Articles are hosted by MDPI on as a courtesy and upon agreement with the previous journal publisher.
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Math. Comput. Appl. 2003, 8(3), 279-286;

The Monitoring Simulation of a Lathe

Universitatea Dunarea de Jos din Galati, Str. Domneasca nr. 47 Galati -6200 Romania
Author to whom correspondence should be addressed.
Published: 1 December 2003
PDF [488 KB, uploaded 31 March 2016]


The study of machine-tool dynamic is realised here as “monitoring”, meaning checking and improving the functioning of the machine. The state of processing is followed with certain sensors which signs are processed inside the computer, then it takes the decision of monitoring, meaning the identification of a class from the set of classes (process conditions). For monitoring in turning, it is shown the classes (tool conditions). The vibrograms that represent: - the components variations of the cutting force; - the relative displacement between tool and piece, on the repelling direction; - the power furnished by the electric engine, are realised with the functions RANDN and RAND (from MATLAB). Based on them it is calculating 11 monitoring indices. The class resulted at the experiment (simulate) i, which corresponds to the monitoring indices, we establish with the function REM. The ANN with 11 inputs (the number of monitoring indices) and 8 outputs (the number of classes) is realised with 3 layers. The network is made with the function newff, trained with the function train and simulated with the function sim.
Keywords: Simulation; monitoring; lathe; artificial neural network; learning, classification; MATLAB Simulation; monitoring; lathe; artificial neural network; learning, classification; MATLAB
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Balan, G.C.; Tarau, C. The Monitoring Simulation of a Lathe. Math. Comput. Appl. 2003, 8, 279-286.

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