Trans. Korean Soc. Noise Vib. Eng., 24(9) : 682~686, 2014 한국소음진동공학회논문집 제24 권 제9 호, pp. 682~686, 2014 http://dx.doi.org/10.5050/KSNVE.2014.24.9.682 ISSN 1598-2785(Print), ISSN 2287-5476(Online) 682 ┃ Trans. Korean Soc. Noise Vib. Eng., 24(9) : 682~686, 2014 옵셋 인쇄기계 동력규모 변화에 따른 소음 영향 평가 The Noise Influence Assessment according to the Change of the Offset Type Print Machine's Power 구 진 회* ․ 권 명 희* ․ 이 우 석* ․ 이 재 원* ․ 박 형 규* ․ 김 삼 수* ․ 윤 희 경* ․ 이 규 목* ․ 정 대 관* ․ 서 충 열† Jinhoi Gu, Myunghee Kwon, Wooseok Lee, Jaewon Lee, Hyungkyu Park, Samsu Kim, Heekyung Yun, Kyumok Lee, Daekwan Jung and Chungyoul Seo (Received June 25, 2014 ; Revised August 18, 2014 ; Accepted August 18, 2014) Key Words : Print Machine(쇄기), Regression Analysis(회귀분석), Sound Power Level(향파레벨) ABSTRACT Nowadays, the needs to revise the classification criteria for noise emission facilities have been suggested by the related industries. Because there existed many reasonable factors in the criteria re- garding the noise emission facilities. And the noise emission facility classification criterion of the print machine changed from 50 HP to 100 HP in 2013. But the increasement of the noise emission facility classification criterion of the print machine can cause adverse effects like the bigger noise. So, in this paper, we measured the print machine's sound power level according to the changes of the print machine's power to assess the adverse effects. The measurement method applied with KS I ISO 9614-2(1996). The corelation between the sound power level and the power of print machines was analyzed by regression analysis. In this paper, we found that the sound power level of the print machines can increase about 1.3 dB in the condition of that the power of print machine increases from 50 HP to 100 HP. And we found that the sound power level of the print machines can increase about 1.0 dB for a increasement of 1,000 SPH(sheet per hour) of printing speed. The noise emission characteristics of print machine stuied in this paper will be useful to design the noise reduction plan in the future. * 1. 서 론 현행 소·진동리법에서 규정하 는 소 배출시설 분류 기준 오래전(’90년대 초)에 분류 되어 (1) 련 산업에서 분류 기준 합리화에 대한 요가 오랫동안 제기되어 왔다 (2) . 특히, 옵셋 쇄 기  쇄기술 발달에 따라 쇄방법 및 부속기 등 다양화됨에 따라 동력규모가 크게 변 하였다. 러한 실정 려하여 최근 옵셋 쇄기  소배출시설 분류 기준 상향 조정(50마력→ 100마력) 필요성에 대한  ’07년 후 련 업 에서 제기되어 왔다. 러한 쇄기술 발달에 따른 동력규모 확대 변화 요에 따라 ’13년 11 † Corresponding Author ; Member, National Institute of Environmental Research E-mail : scy12s@korea.kr Tel : +82-32-560-8329 * National Institute of Environmental Research ‡ Recommended by Editor Myung Jun Kim ⓒ The Korean Society for Noise and Vibration Engineering