Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2006.11a
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  • Pages.202-207
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  • 2006
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Reduction of Aeroacoustic Noise from Intake Head of a Vacuum Cleaner

진공청소기 흡입유로의 공력소음 개선

  • 구정수 (전남대학교 기계공학과 대학원) ;
  • 황원걸 (전남대학교 기계시스템공학부) ;
  • 오일권 (전남대학교 기계시스템공학부) ;
  • 오장근 (삼성광주전자(주)) ;
  • 송화규 (삼성광주전자(주))
  • Published : 2006.11.16
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Abstract

The aeroacoustic noise from intake head of a vacuum cleaner is caused by complicated transient pressure fluctuation and it greatly affects the overall SPL of the vacuum cleaner. In this study, we intended to decrease the overall SPL by reducing the aeroacoustic noise from intake head. In the first the place, we analyzed the aeroacoustic noise from the unsteady fluid analysis of intake head. And then, we grasped the dominant frequency band from the aeroacoustic noise by comparing the spectrum distributions between examinations and analyses. Also, we systematically investigated the aeroacoustic noise sources from each part composing the intake head. Consequently, we redesigned each part of the dominant noise sources and suggested the modified intake head, resulting in the reduction ortho overall SPL by 3.6dB(A).

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