http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
점성 비틀림진동 댐퍼의 공장 성능 테스트와 계측 기술에 관한 연구
권성훈(Sunghun Kwon),박주민(Jumin Park),한국현(Kukhyun Han),트렁 헝남(Hoangnam Truong),이돈출(Donchool Lee) 한국소음진동공학회 2016 한국소음진동공학회 학술대회논문집 Vol.2016 No.4
Before the development of high performance tuned dampers, viscous torsional vibration damper (VTVD) are being produced and applied on marine diesel engines from the 1950s for its simple and excellent damping performance. Further, the 1970s oil shock led to higher performance of diesel engines - increased combustion pressure and mean effective pressure with lower fuel consumption – and the demand to solve the torsional vibration problems likewise increased. In addition, torsional vibration dampers are also widely applied on recently developed two-stroke low-speed ultra long-stroke engine having lower operating speed in order to increase the propeller efficiency. The torsional vibration resonance for these engines are relatively higher compared to the 5 – or 6 – cylinders engine. A VTVD model being developed by Samyoung Machinery Co., Ltd was employed on a domestic vessel powered by about 900kW class engine. It is an utmost importance, particularly on dampers, to guarantee a satisfactory reliability before being installed on engines for the safety of vessels. In this paper, the manufacturer constructed a suitable device to verify the performance and applied different measurement methods to ensure the verification method.