고속 4행정 디젤엔진을 갖는 선박 추진시스템에서 토크변동에 의한 감속기어 안정성 평가

다국어 초록 (Multilingual Abstract)

Maritime safety has been more critical recently due to the occurrence of shipboard accidents involving prime movers. As such, the propulsion shafting design and construction plays a vital role in the safe operation of the vessel other than focusing on being cost-efficient. Smaller vessels propulsion shafting system normally install high speed four-stroke diesel engine with reduction gear for propulsion efficiency. Due to higher cylinder combustion pressures, flexible couplings are employed to reduce the increased transmitted torque.
In this paper, an actual vibration measurement and theoretical analysis was carried out on a propulsion shafting with V18.3L engine installed on small car-ferry and revealed higher torsional vibration resonance. Hence, a rubber-block type flexible coupling was installed to attenuate the transmitted vibratory torque. Considering the flexible coupling application factor, reduction gear stability due to torque variation was analyzed in accordance with IACS M56 and the results are presented herein.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 비틀림진동의 이론 해석과 감속기의 국제 규정
• 3. 실선실험
• 4. 결론
• 참고문헌