A Study on Sound Attenuation of Plant Noise by Enclosure

방음실에 의한 공장설비 소음의 감쇠 효과에 관한 연구

  • 윤세철 (국제음향 주식회사 부설연구소) ;
  • 이해경 (단국대학교 전기공학과)
  • Published : 1994.12.01


The considerations in the noise control by enclosure are the rise of temperature and sound pressure, transmission loss, absorption coefficient of the materials, the structure of the soundproof panels, an opening and coincidence frequency. But it is very difficult that we obtain the accurate data about those in design, so, the noise reduction after enclosing does not correspond with the calculation. The difference of the noise reduction between the calculation and the measurement was 8.2dBA, and we can obtain the approximate result as the following formula which correct 10dBA, safely.