• 제목/요약/키워드: NCR(Normal Continue Rating)

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181,000 DWT BULK CARRIER 전선 진동해석을 통한 전선진동특성 고찰 (The study of 181,000 DWT BULK CARRIER global vibration characteristic by global vibration analysis)

  • 임구섭;정태석;최영달;석호일
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2008년도 추계학술대회논문집
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    • pp.329-330
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    • 2008
  • The 181,000 DWT Bulk Carrier has a different deck house type, which is not typical for previous bulk carriers, to meet the new international rules for bulk carriers. This new deck house has much smaller transverse breadth than the hull's transverse breath, resulting in large levels of the transverse response of the deck house. In addition, the longitudinal response of the funnel showed rather a large magnitude of vibration, which are excited by the ship's main excitations such as the main engine H-moment and the propeller surface forte when the ship operates at the NCR and the MCR speeds In the ballast condition. To solve these issues, the global forced vibration analysis has been performed for the ship and the ship structure has been modified to reduce the vibration level by increasing the girder depth and adjusting the engine room tank arrangement.

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