대한조선학회 특별논문집 (Special Issue of the Society of Naval Architects of Korea)
- 대한조선학회 2008년도 특별논문집
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- Pages.96-105
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- 2008
진동파워흐름해석을 위한 난류흐름에 의한 입력파워 추정 및 적용
Estimation and Application of Turbulent Flow-Induced Input Power for Vibrational Power Flow Analysis
- 임구섭 (STX 조선㈜ 조선해양연구소) ;
- 홍석윤 (서울대학교 조선해양공학과) ;
- 박영호 (서울대학교 조선해양공학과) ;
- 최영달 (STX 조선㈜ 조선해양연구소) ;
- 정태석 (STX 조선㈜ 조선해양연구소)
- Lim, Gu-Sub (STX Shipbuilding Co., Ltd. Shipbuilding & Ocean Research Institute) ;
- Hong, Suk-Yoon (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
- Park, Young-Ho (Department of Naval Architecture and Ocean Engineering, Seoul National University) ;
- Choi, Young-Dal (STX Shipbuilding Co., Ltd. Shipbuilding & Ocean Research Institute) ;
- Joung, Tea-Seok (STX Shipbuilding Co., Ltd. Shipbuilding & Ocean Research Institute)
- 발행 : 2008.09.30
초록
Turbulent flow-induced vibrations generate the structural fatigue and noise problems. In this paper, using Corcos, Smol' yakov-Tkachenko, Ffowcs Williams and Chase models, the input power generated by distributed fluid force is predicted for power flow analysis (PFA) of turbulent flow-induced vibration. Additionally, the Fast Fourier Transform (FFT) is used to raise the calculation efficiency PFA results obtained are compared with the classical modal solutions for verifications. Analytic results using the fluid models show good agreements with those of modal analysis, respectively.
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