25권 5호 573-580 2017 [한국자동차공학회 논문집 ]
| 제목 | 유한요소 해석을 이용한 오일 팬 구조 변경에 따른 엔진 방사 소음 예측 |
|---|---|
| 분야 | 진동ㆍ소음 |
| 언어 | Korean |
| 저자 | 윤현우(인하대학교), 이상권(인하대학교) |
| Key Words | Oil pan(오일 팬), Structure modification(구조 변경), Modal analysis(모드 해석), Radiation noise(방사소음), ATV(음향전달벡터), FEM(유한 요소 해석) |
| 초록 |
The conventional internal combustion engine is one of the major sources of noise. Therefore, manufacturers are conducting various research in order to reduce noise to ensure a comfortable environment for passengers. This study investigated the influence of oil pan structure modification on engine noise. Firstly, the excitation force of the engine is defined and it is used to evaluate the engine block vibration. It is also used to predict engine radiation noise with ATV(Acoustic Transfer Vector) and MATV(Modal Acoustic Transfer Vector) at a distance of 1 m from the engine. Results of this study indicated that sound pressure level affected by the oil pan mode can be reduced. All this process is implemented using the LMS Engineering Innovation Virtual Lab tool. |
| 원문(PDF) | 다운로드 |