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Architecture & Urban Research Institute

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한국소음진동공학회|한국소음진동공학회논문집 2020년 2월

논문명 2기1축 선박 추진시스템의 빙 충격 토크해석 / Ice Impact Torque Analysis for Twin-engine-One-shaft Marine Propulsion system
저자명 이돈출 ; 송명호 ; 벙광다오 ; 이재웅
발행사 한국소음진동공학회
수록사항 한국소음진동공학회 논문집, Vol.30 No.01 (2020-02)
페이지 시작페이지(67) 총페이지(8)
ISSN 1598-2785
주제분류 환경및설비
주제어 빙 토크; 과도비틀림진동 ; Ice Torque; Transient Torsional Vibration
요약2 The number of polar class vessels in the Arctic has been steadily increasing since the opening of the Arctic route. These vessels are designed for specific operations, and are classified using the established polar class (PC) rating system. The ratings, which range from PC1 to PC7, indicate those vessels that are the most useful (PC1) for year-round operation in polar waters to those that are the least useful (PC7) for summer/autumn operation. This study analyzed the ice impact torque in a 2-engine, 1-shaft propulsion system applied to a G/T 7765 vessel rated PC7, the lowest class, as well as the transient torsional vibration for the ice torque of a propeller and the excitation torque of a diesel engine. To conduct the analysis, a program was developed herein that complements the Newmark method using a numerical integration. The results showed that for a PC7 vessel, 2-engine, 1-shaft propeller operation mode can allow navigation through a frozen seaway because a large total equivalent inertia moment is achieved under an ice load, and the ice impact torque transmitted to the shaft is distributed to the generators and engines on both sides. However, in 1-engine, 1-shaft propeller operation mode, the vibratory torque of the generator’s flexible coupling exceeded the manufacturer’s guidelines because it was unable to split the small equivalent inertia moment transmitting the same excitation force.
소장처 한국소음진동공학회
언어 한국어