Energy consumption and vibration of auto core adhesive mounter machine in case of linear bearing failures
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Abstract
This research presented the analysis of energy losses of automatic machine in the adhesive dispensing and slider attaching process of Hard Disk Drive (HDD) industries caused by the faulty linear bearing by measuring the linear motor current and vibration signal. Five different defect conditions of linear bearing were simulated compare with the healthy condition. At test speed, referring to the actual production process, of 0.25, 0.50 and 1.00 m/s. The result indicates that when the linear motor operated in the faulty bearing situation the current will be increased. Analysis of the production rate at 0.50 m/s, which is the current speed used in the production line, the machine has the electricity consumption of 594,323.29 kWh/year. When the linear bearing has defect, the machine will consume energy at 681,890.25 kWh/year, which increase 14.74% more than when the machine is in a healthy condition. In addition, the results from the vibration measurement show the vibration magnitude in each case is significantly different. Therefore, utilizing fault detection and isolation techniques for linear bearing by analyzing motor current values and vibration signals can identify the defects in linear bearings before causing damage to other parts. Moreover, the method can help reducing the energy consumption of the machine efficiently.
Article Details
Published manuscript are the rights of their original owners and RMUTSB Academic Journal. The manuscript content belongs to the authors' idea, it is not the opinion of the journal's committee and not the responsibility of Rajamangala University of Technology Suvarnabhumi
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