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Utilization of information maximum for condition monitoring with applications in a Machining Process and a water pump

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3 Author(s)
Xiaoli Li ; Sch. of Comput. Sci., Univ. of Birmingham, UK ; Du, R. ; Guan, X.-P.

This work presents a new method for the condition monitoring based on the so-called information maximum (InfoMax). First, the InfoMax concept is employed to build a neural network. The neural network is used for independent component analysis to identify the source (input) that causes malfunctions (output). To demonstrate the new method, two application examples were included. First, tool breakage detection in an end milling process. The monitoring signal is the current of the feed-motor, which is used to detect the change of the cutting force and accordingly, to detect tool breakage. Second, is the monitoring of a water pump. In this example, seven acceleration signals were simultaneously acquired and used to identify the location of the fault (bearing crack). The experiment results indicate that the new method is effective.

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:9 ,  Issue: 4 )