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국내 최대 기계·건설 공학연구정보
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  • 국내학술대회

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    국내학술대회 제목 게시판 내용
    제목(국문) 대형선박의 추진기 진동 모우드 특성
    제목(영문) Vibration mode characteristics on a propeller in very large vessel
    저자 김재홍 (J. H. Kim ,삼성중공업 조선해양연구소 ) ▷공저자네트워크등록하기
    조대승 (D. S. Cho ,부산대학교 조선해양공학과 ) ▷공저자네트워크등록하기
    한성용 (S. Y. Han ,삼성중공업 조선해양연구소 ) ▷공저자네트워크등록하기
    초록 According to the trends of construction of large size vessel with high power, the natural frequencies of the bending modes of propeller blades have been lower than the past. Therefore. it is expected that the noise and vibration problems of the marine propeller are frequently occurred. As main issue of the propeller noise and vibration problem, the cavitation noise and singing noise due to the flow induced excitation of the bending modes of propeller blade in the high frequency range has been studied by the hydrodynamic researchers in the view point of the excitation force reduction. In this paper, the vibration mode characteristics of propeller with a large diameter in very large vessel are investigated by the vibration analysis of the finite element method using MSC/Nastran and the vibration measurement by the impact test on the propeller blade. According to the results, the natural frequencies of various blade bending modes in water entrained condition could be estimated from the natural frequencies taken by the measurement and free vibration analysis in the dry condition, and it could be estimated how the high frequency noise such as singing is generated from the blade bending modes.
    keyword 추진기;날개;진동형;유한요소법;propeller; blade;Vibration Mode;Finite Element Method
    저널명 대한조선학회 춘계학술대회 ▷관련저널보기
    VOL 4
    PAGE 386-393
    발표년도 2004
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