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IDENTIFICATION AND MONITORING OF NOISE SOURCES OF CNC MACHINE TOOLS BY ACOUSTIC HOLOGRAPHY METHODS
 
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Lublin University of Technology, Mechanical Engineering Faculty, Department of Production Engineering, 36 Nadbystrzycka Street, 20-816 Lublin, Poland
AUTOR DO KORESPONDENCJI
Jerzy Józwik   

Lublin University of Technology, Mechanical Engineering Faculty, Department of Production Engineering, 36Nadbystrzycka Street, 20-816 Lublin, Poland, e-mail: j.jozwik@pollub.pl, 38d Nadbystrzycka Street, 20-618 Lublin, 20-618 Lublin Lublin, Poland
Data publikacji: 01-06-2016
 
Adv. Sci. Technol. Res. J. 2016; 10(30):127–137
 
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STRESZCZENIE
The paper presents the analysis of sound field emitted by selected CNC machine tools. The identification of noise sources and level was measured by acoustic holography for the 3-axis DMC 635eco machine tool and the 5-axis vertical machining centre DMU 65 monoBlock. The acoustic holography method allows precise identification and measurement of noise sources at different bandwidths of frequency. Detection of noise sources in tested objects allows diagnosis of their technical condition, as well as choice of effective means of noise reduction, which is highly significant from the perspective of minimising noise at the CNC machine operator workstation. Test results were presented as acoustic maps in various frequency ranges. Noise sources of the machine tool itself were identified, as well as the range of noise influence and the most frequent places of reflections and their span. The results of measurements were presented in figures and diagrams.