조합형 소음기를 이용한 육상발전용 디젤 엔진의 흡기 소음 제어

다국어 초록 (Multilingual Abstract)

Turbo-charger noise radiated from air intake part is one of the most important noise sources in diesel power plant. In this paper, intake noise control of the diesel power plant was studied using parallel baffle type silencer and concentric hole-cavity resonator simultaneously. Firstly, acoustical characteristics and attenuation performance for parallel baffle type silencer were investigated through theoretical approach and experimental method. Based on the results, optimal design of the parallel baffle silencer was suggested. Secondly, for reducing the low frequency noise contained in the intake noise, the concentric hole-type resonator was developed and the acoustic performance was verified from the test. By combining two types of silencers, it is expected that the overall insertion loss is about 50 dB. So, the combined silencer is very helpful in reducing the intake noise of diesel power plant.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 디젤엔진 흡기 소음특성 및 저감방안
• 3. 배플형 소음기를 이용한 흡기소음 제어
• 4. 공명형 소음기를 이용한 저주파소음 제어
• 5. 결론
• 참고문헌