http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
배기시스템 Hanger의 DPDS성능 개선에 관한 연구
김인국(In-Guk Kim),우성동(Sung-dong Woo) 한국자동차공학회 2015 한국자동차공학회 학술대회 및 전시회 Vol.2015 No.11
The automotive industry demands increasingly stringent levels of acceptable interior noise. The main source of interior noise is exhaust system vibration which is transferred by engine energy. It means that the exhaust company need to understand the vibration transfer path to decrease noise. The vibration isolation systems which is consist of body hanger, isolator and exhaust system hanger is main routine of structure-borne noise. So to decrease noise, DPDS of hangers should be considered. In this paper, we describe the methodology to enhance exhaust system hanger DPDS by changing design, type, adding rod and increasing welding length. And for reliable results, experimental test and FE simulation is compared and show good correlation.