Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Active Noise Control in a Duct Using Smart Foam

스마트 폼을 이용한 덕트 내부의 능동 소음 제어

  • 김표재 (서울대학교 대학원 기계항공공학부) ;
  • 강연준 (서울대학교 기계항공공학부) ;
  • 조영만 (서울대학교 기계항공공학부)
  • Published : 2001.06.01
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Abstract

In this paper is presented passive-active noise control in a duct using a ring-type smart foam. The ring-type smart foam is comprised of a PVDF film embedded in elastic noise control foam of lining shape. The embeddedPVDF element acts as an actuator to reduce noise at lower frequencies and the foam absorbs noise at higher frequencies. By implementing an adaptive filtered-x LMS algorithm, experiments are performed to reduce both tonal and broadband noise in a duct with one end closed and the other end open.

Keywords

References

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