DOI QR코드

DOI QR Code

Mobile harbor: structural dynamic response of RORI crane to wave-induced rolling excitation

  • Cho, Jin-Rae (School of Mechanical Engineering, Pusan National University) ;
  • Han, Ki-Chul (School of Mechanical Engineering, Pusan National University) ;
  • Hwang, Soon-Wook (School of Mechanical Engineering, Pusan National University) ;
  • Cho, Choon-Soo (School of Mechanical Engineering, Pusan National University) ;
  • Lim, O-Kaung (School of Mechanical Engineering, Pusan National University)
  • 투고 : 2012.04.18
  • 심사 : 2012.08.09
  • 발행 : 2012.09.10

초록

A new concept sea-floating port called mobile harbor has been introduced, in order to resolve the limitation of current above-ground port facilities against the continuous growth of worldwide marine transportation. One of important subjects in the design of a mobile harbor is to secure the dynamic stability against wave-induced excitation, because a relatively large-scale heavy crane system installed at the top of mobile harbor should load/unload containers at sea under the sea state up to level 3. In this context, this paper addresses a two-step sequential analytical-numerical method for analyzing the structural dynamic response of the mobile harbor crane system to the wave-induced rolling excitation. The rigid ship motion of mobile harbor by wave is analytically solved, and the flexible dynamic response of the crane system by the rigid ship motion is analyzed by the finite element method. The hydrodynamic effect between sea water and mobile harbor is reflected by means of the added moment of inertia.

키워드

과제정보

연구 과제 주관 기관 : Korea Institute of Energy Technology Evaluation and Planning (KETEP)

참고문헌

  1. Biran, A.B. (2003), Ship Hydrostatics and Stability, Butterworth-Heinemann, Singapore.
  2. Cho, J.R. and Song, J.M. (2001), "Assessment of classical numerical models for the separate fluid-structure modal analysis", J. Sound Vib., 239(5), 995-1012. https://doi.org/10.1006/jsvi.2000.3179
  3. Cho, J.R., Song, J.M. and Lee, J.K. (2001), "Finite element techniques for the free-vibration and seismic analysis of liquid-storage tanks", Finite Elem. Analy. D., 37, 467-483. https://doi.org/10.1016/S0168-874X(00)00048-2
  4. Godeauy, E. and Grist, J. (2006), Bubble Benefits, Technical Report, Siemens Water Technologies, USA.
  5. Lee, S.G. (2003), Ship Motion and Maneuverability, Pusan National University Press, Busan. (in Korean)
  6. Lim, O.K., Cho, J.R., Choi, E.H., Han, K.C. and Hwang, S.W. (2010), "Structural optimization and weight reduction analysis for type MH-A1", Technical Report of Korean Ministry of Education, Science and Technology, Seoul, Korea.
  7. Pierson, W.J. and Moskowitz, L. (1964), "A proposed spectral form for fully developed wind seas based on the similarity theory of S.A. Kitaigorodskii", J. Geophys. Res., 69(24), 5181-5203. https://doi.org/10.1029/JZ069i024p05181
  8. Rajasankar, J., Iyer, N.R. and Apparao, T.V.S.R. (1993), "A new finite element model to evaluate added mass and for analysis of fluid-structure interaction problems", Int. J. Numer. Meth. Eng., 36, 997-1012. https://doi.org/10.1002/nme.1620360608
  9. Senjanovic, I., Parunov, J. and Cipric, G. (1997), "Safety analysis of ship rolling in rough sea", Chaos Soliton. Fractal., 8(4), 659-680. https://doi.org/10.1016/S0960-0779(96)00114-2

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