대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제47권2호
  • /
  • Pages.242-247
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  • 2010
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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유체 충격압력 시계열의 모델링에 관한 기초 연구

A Fundamental Study for Time History Modeling of Fluid Impact Pressure

  • Nho, In-Sik (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Lee, Jae-Man (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University) ;
  • Yeom, Cheol-Woong (Korea Register of Shipping)
  • 발행 : 2010.04.20
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초록

To consider effects of essential parameters of water impact pressure on dynamic structural responses of bow bottom structures, a parametric study for a ship bottom panel is carried out. The idealized pressure time history models were assumed by triangular and rectangular shapes in time domain. The main loading parameters are duration time and peak pressure value maintaining the same impulse value. The structural models for local bottom stiffened panels of a container ship are analysed. The natural frequency analysis and transient dynamic response analysis are performed using MSC/NASTRAN. Added mass effects of contacting water are considered and the pressure distributions are assumed to be uniform in the whole water contacting surface. The effects of loading parameters on the structural responses, especially maximum displacements, are considered. Besides the peak pressure value, effects of duration time correlated with natural frequencies are thought to be the important parameters.

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참고문헌

  1. Lee, S.G. and Kim, M.S., 1999. “Development of Structural Analysis System of Bow Flare Structures . Prediction of Wave Impact Load Calculation,” Journal of the Society of Naval Architecture of Korea, Vol. 36, No.4, pp.77-86.
  2. Lee, C.K., Kim, S.C. and Yoon, J.H. 1999. “Bottom Slamming Analysis of VLCC Using Nonlinear Transient Analysis in MSC/NASTRAN,” Proceeding of Annual Meeting of Structural Research Group, The Society of Naval Architecture of Korea.
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  4. Nahm, J.O., Kang, H.D., Chung, J.Y., Kwon, S.H. and Choi, H.S., 2007. “An Experimental Study on Slamming Phenomenon by Forced Impact,” Journal of Ocean Engineering and Technology, Vol. 21, No. 1, pp. 40-44.
  5. Paik, J.K. and Shin, Y.S., 2006, "Structural Damage and Strength Criteria for Ship Stiffened Panels under Impact Pressure Actions Arising from Sloshing, Slamming and Green Water Loading,"Ships and Offshore Structures, Vol. 1 No. 3 pp. 249-56. https://doi.org/10.1533/saos.2006.0109
  6. Wagner, V.H. 1932, "Uber Stoss und Gleitvergange an der Ober flache von Flussigkeiten," Aeitschrift fur Angewandle Mathematik und Mechanik, Vol. 12, pp.193-215. https://doi.org/10.1002/zamm.19320120402
  7. Yum, D.J. and Yoon, B.S., 2008, "Numerical Simulation of Slamming Phenomena during Water Entry of 2-D Wedges," Journal of the Society of Naval Architects of Korea, Vol. 45, No. 5, pp. 477-486. https://doi.org/10.3744/SNAK.2008.45.5.477

피인용 문헌

  1. Sloshing Impact Response Analysis for Insulation System of LNG CCS Considering Elastic Support Effects of Hull Structures vol.31, pp.5, 2017, https://doi.org/10.26748/KSOE.2017.10.31.5.357