The purpose of this study was to establish the noise generation actual condition of large machine in plant. most of the plant's large-scale machines are designed and manufactured overseas, so it is difficult to access basic information. The regulatory standards, management plans and measurement methods for these machines are insufficient. It is necessary to obtain information about the noise storage devices installed for warranty and the noise reduction device when designing the equipment. Investigation of the occurrence of large-scale machine noise at domestic plant sites was conducted. The sound insulation design of the industrial safety and health care law benchmark and the large-scale machine compound noise design of the equipment are carried out.

ABSTRACT
1. 서 론
2. 대형 기계 소음도 발생 실태조사
    2-1. 측정방법
    2-2 측정 장치 및 용도
3. 기계별 소음도 측정결과
4. 결 론
References

• 이동필(Department of Mechanical Engineering, Wonkwang University) | Dong-Pil Lee
• 김병삼(Department of smart automobile engineering, Wonkwang University) | Byoung-Sam Kim Corresponding Author