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

The Society of Naval Architects of Korea (대한조선학회)
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Analysis of an Elastic Boom Effect on the Dynamic Response of a Cargo

중량물의 동적 거동에 미치는 크레인 붐(boom)의 탄성 영향 분석

  • Park, Kwang-Phil (Ship and Ocean Research Institute, Deawoo Shipbuilding & Marine Engineering Co., Ltd.) ;
  • Cha, Ju-Hwan (Engineering Research Institute, Seoul National University) ;
  • Lee, Kyu-Yeul (Department of the Naval Architecture and Ocean Engineering, and Research Institute of Marine System Engineering, Seoul National University)
  • 박광필 (대우조선해양 선박해양연구소) ;
  • 차주환 (서울대학교 공학연구소) ;
  • 이규열 (서울대학교 조선해양공학과 및 해양시스템공학연구소)
  • Received : 2010.01.22
  • Accepted : 2010.04.08
  • Published : 2010.06.20
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Abstract

In this paper, in order to analyze the dynamic response of a floating crane when it lifts a heavy cargo, the boom of the floating crane is considered as an elastic beam. The boom is divided into elements based on finite element formulation and the floating frame of reference formulation and nodal coordinates are employed to model the boom as a flexible body. As an extension of the previous study, in order to consider spatial motion in waves, the coupled equations of motions of the 6 degree of freedom (DOF) floating crane and 6 DOF cargo are developed based on the flexible multibody system dynamics. The 3 dimensional deformation of the elastic boom is considered with 18 DOF. The dynamic simulation of the floating crane and the cargo is performed under regular wave conditions with various cargo weights. Finally, the effects of the elastic boom on lifting cargo are discussed by comparing the simulation results between the elastic boom and a rigid boom.

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References

  1. Al-Sweiti, Y. and Ső ffker, D., 2007, "CargoPendulation Suppression of Ship Cranes withElastic Booms," Mathematical and ComputerModeling of Dynamical Systems, Vol. 13, No. 6,pp. 503-529. https://doi.org/10.1080/13873950701214424
  2. Cha, J. H., Ham, S. H., Kwon, J. H., Roh, M. I.,Lee, K. Y., and Park, K. P., 2008, "Simulation ofDynamic Response of a Heavy Cargo Suspendedby Parallel Connected Floating Cranes,"Proceeding of the Society of Naval Architectureof Korea Fall Conference , pp.921-930.
  3. Cha, J. H., Park, K. P., and Lee, K. Y., 2010,"Numerical Analysis for Nonlinear Static andDynamic Response of a Floating Crane withElastic Boom," Transactions of the KoreanSociety of Mechanical Engineers A, Vol. 34, No.4, pp. 501-509. https://doi.org/10.3795/KSME-A.2010.34.4.501
  4. Cha, J. H., and Roh, M. I., 2010, "CombinedDiscrete Event and Discrete Time SimulationFramework and Its Application to the BlockErection Process in Shipbuilding," Advances InEngineering Software, Vol. 41, No. 4, pp. 656-665. https://doi.org/10.1016/j.advengsoft.2009.12.006
  5. Cha, J. H., Roh, M. I., Cho, D. Y., and Lee, K.Y., 2009, "Block Erection Simulation Using theIntegrated System of Combined Discrete Eventand Discrete Time Simulation Kernel," Journalof the Society of Naval Architects of Korea, Vol.46, No. 3, pp. 303-312. https://doi.org/10.3744/SNAK.2009.46.3.303
  6. Cha, J. H., Roh, M. I., and Lee, K. Y., 2010,"Integrated Simulation Framework for theProcess Planning of Ships and OffshoreStructures," Robotics and Computer-IntegratedManufacturing Journal, Vol. 26, No. 5, pp. 430-453. https://doi.org/10.1016/j.rcim.2010.01.001
  7. Ku, N. K., Cha, J. H., Kwon, J. H., and Lee, K.Y., 2009, "Suppression of Load Pendulationusing Tagline Control System for FloatingCrane," Journal of the Society of Naval Architectsof Korea, Vol. 46, No. 5, pp. 527-535. https://doi.org/10.3744/SNAK.2009.46.5.527
  8. Park, K.P., Cha, J.H., and Lee, K.Y., 2009,"Analysis of an Elastic Boom Effect on theDynamic Response of a Cargo," Proceeding ofthe Society of Naval Architecture of Korea FallConference, pp. 1131-1140.
  9. Park, K.P., Cha, J.H., and Lee, K.Y., 2010"Analysis of Dynamic Response of a FloatingCrane and a Cargo with Elastic Booms Basedon Flexible Multibody System Dynamics,"Journal of the Society of Naval Architects ofKorea, Vol. 47, No. 1, pp. 47-57. https://doi.org/10.3744/SNAK.2010.47.1.047
  10. Przemieniecki, J.S., 1968, Theory of MatrixStructural Analysis, McGraw-Hill Book Company,New York.
  11. Ren, H., Wang, X., Hu, Y., and Li, C., 2008,"Dynamic Response Analysis of a MooredCrane-Ship with a Flexible Boom," Journal ofZhejiang University Science A, Vol. 9, No. 1, pp.29-31.
  12. Shabana, A.A., 2005, Dynamics of multibodysystems, Third edition, Cambridge UniversityPress, Cambridge.