Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Lifting Analysis Considering Three Dimensional Dynamic Responses of a Boom based on Finite Element Formulation

유한요소 붐 모델의 3차원 동적 거동을 고려한 리프팅 해석

  • 박광필 (대우조선해양 선박해양연구소) ;
  • 차주환 (서울대학교 공학연구소) ;
  • 이규열 (서울대학교 조선해양공학과 및 해양시스템공학연구소)
  • Received : 2010.06.04
  • Accepted : 2010.07.22
  • Published : 2010.08.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, the lifting analysis of a floating crane with a shipbuilding block is performed. Since floating cranes are operated in ocean waves, six degree-of-freedom motions are considered in the dynamic equations of motions of the floating crane and the block. The boom of the floating crane is considered as an elastic body in the analysis, and is modeled as three dimensional beam based on the finite element formulation. The hydrostatic and hydrodynamic forces by a regular wave are considered as external forces. By solving the equations of motions numerically, the dynamic responses of the floating crane and the block are simulated. The simulation results with different wave directions are compared and the conditions which cause maximum responses are discussed.

Keywords

References

  1. Al-Sweiti, Y. and Soffker, D., 2007, “Cargo Pendulation Suppression of Ship Cranes With Elastic Booms,” Mathematical and Computer Modelling of Dynamical Systems, Vol. 13, No. 6, pp. 503-529. https://doi.org/10.1080/13873950701214424
  2. Ren, H., Wang, X., Hu, Y. and Li, C., 2008, “Dynamic Response Analysis of a Moored Crane-ship with a Flexible Boom,” Journal of Zhejiang University ScienceA, Vol. 9, No. 1, pp. 29-31.
  3. Park, K. P., Cha, J. H. and Lee, K. Y., 2010, “Analysis of Dynamic Response of a Floating Crane and a Cargo with Elastic Booms Based on Flexible Multibody System Dynamics,” Journal of the Society of Naval Architects of Korea, Vol. 47, No. 1, pp. 47-57. https://doi.org/10.3744/SNAK.2010.47.1.047
  4. Park, K. P., Cha, J. H. and Lee, K. Y., 2009, “Automation of 3 Dimensional Beam Modeling based on Finite Element Formulation for Elastic Boom of a Floating Crane,” Proceeding of Korean Society of CAD/CAM Engineers, pp. 79-85.
  5. Seo, J. H, Jung, I. H., Han, H. S. and Park, T. W., 2004, “Dynamic Analysis of a Very Flexible Cable Carrying A Moving Multibody System,” Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 14, No. 2, pp. 150-156. https://doi.org/10.5050/KSNVN.2004.14.2.150
  6. Shabana, A. A., 2005, Dynamics of Multibody Systems, Thirdedition, Cambridge University Press.
  7. Przemieniechi, J. S., 1968, Theory of Matrix Structural Analysis, McGraw-Hill, New York.
  8. Cummins, W. E., 1962, “The Impulse Response Function and Ship Motions,” Schiffstechnik, Vol. 9, pp. 101-109.
  9. Cha, J. H., Park, K. P. and Lee, K. Y., 2010, “Numerical Analysis for Nonlinear Static and Dynamic Response of a Floating Crane with Elastic Boom,” Transactions of the Korean Society of Mechanical Engineers A, Vol. 34, No. 4, pp. 501-509. https://doi.org/10.3795/KSME-A.2010.34.4.501