Noise Source Identification in Industrial Machinery Using Acoustic Analysis
DOI:
https://doi.org/10.47709/brilliance.v6i2.8690Kata Kunci:
acoustic signal analysis, electric motor noise, frequency spectrum, industrial machinery, noise source identification, occupational noiseAbstrak
Industrial machinery can generate occupational noise that affects worker safety and machine reliability, yet general noise measurement does not show which component is responsible for the strongest sound. Objective: This study improves noise source identification in industrial machinery by combining acoustic signal analysis, frequency spectrum interpretation, and component level comparison for four representative machines. Methods: A lathe, a multi-spindle drilling machine, a cigarette manufacturing machine, and a pasta packaging machine were examined. Measurements were taken near motors, gearboxes, cutting zones, drilling heads, rollers, reels, and a packaging cutter using a calibrated sound level meter and a condenser microphone. Recorded signals were evaluated through waveform observation, dominant frequency estimation, and repeated component ranking. Results: The highest measured levels were produced by electric motor noise in the cigarette machine, lathe, and drilling machine, with values of 101.4, 101.6, and 103.5 decibels respectively. Gearboxes, rollers, reels, drilling heads, and the cutter also produced meaningful noise, but most were lower than the corresponding motors. The frequency spectrum showed distinctive tonal or cyclic components for each machine part. Conclusion: The method provides a practical route for locating dominant noise sources, prioritizing maintenance, and reducing occupational noise through targeted control of motors, transmissions, and cutting mechanisms.
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Hak Cipta (c) 2026 Abdulqadir M. Alhadar, Osamah Ibrahim Ali Barka, Musbag Ahedery, Omer I. A. Hmellah, Nuri Salem Ali Abosetha
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