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논문 기본 정보

자료유형
학술저널
저자정보
신윤길 (동명대학교)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제33권 제2호(통권 제147호)
발행연도
2019.4
수록면
196 - 202 (7page)

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초록· 키워드

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In this study, the excessive noise and vibration phenomena of a high-speed Ro/Ro passenger ship were analyzed, and a countermeasure was taken based on them. This ship was granted a comfort class notation by the classification society, which was COMFORT-VIBRATION-II and COMFORT-NOISE-CREW-II. However, unfortunately, excessive noise and vibration in the aft part of the ship were delivered from the twin shaft propellers, and therefore the Class Requirement was not satisfied before delivery. In order to obtain the class notation, all of the concerned parties came to an agreement to reduce the noise and vibration level during operation after delivery because a seasonal ferry service was already scheduled and the cabin was fully booked. The root cause of the massive amount of noise and vibration was mainly the propeller-induced excitation pulse and beating that occurred from the mismatch of the rotating speeds of the two shaft lines. A 1st order vibrating force and beating phenomena existed in the propeller. Thus, a reduction of the excitation force, elimination of the beating phenomena, and decrease of the noise level at the aft area cabins and public spaces were required. In addition, structural reinforcements were conducted using pillars and additional girders at the aft part of the decks.

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ABSTRACT
1. 서론
2. 실적선 주요 제원 및 특성
3. 선체 갑판(Deck) 구조의 공진회피 설계
4. 비팅(Beating) 현상분석 및 대책수립
5. 프로펠러 기진력 저감 대책수립
6. 고주파 진동/소음 저감 대책수립
7. 결론
References

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UCI(KEPA) : I410-ECN-0101-2019-454-000689482