As part of WILS II (Wave Induced Loads on Ships) Joint Industry Project organised by MOERI (Maritime and Ocean Engineering Research Institute, Korea), Lloyd’s Register has undertaken time domain springing and whipping analyses for a 10,000 TEU class container ship using computational tools developed in the Co-operative Research Ships (CRS) JIP [1]. For idealising the ship and handling the flexible modes of the structure, a boundary element method and a finite element method are employed for coupling fluid and structure domain problems respectively. The hydrodynamic module takes into account nonlinear effects of Froude-Krylov and restoring forces. This Fluid Structure Interaction (FSI) model is also coupled with slamming loads to predict wave loads due to whipping effects. Vibration modes and natural frequencies of the ship hull girder are calculated by idealising the ship structure as a Timoshenko beam. The results from springing and whipping analyses are compared with the results from linear and nonlinear time domain calculations for the rigid body. The results from the computational analyses in regular waves have been correlated with those from model tests undertaken by MOERI. Further the global effects of springing and whipping acting on large container ships are summarised and discussed.
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ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
June 19–24, 2011
Rotterdam, The Netherlands
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4438-0
PROCEEDINGS PAPER
Time Domain Analysis of Springing and Whipping Responses Acting on a Large Container Ship
Spyros E. Hirdaris
Spyros E. Hirdaris
Lloyd’s Register, London, UK
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Yongwon Lee
Lloyd’s Register, London, UK
Zhenhong Wang
Lloyd’s Register, London, UK
Nigel White
Lloyd’s Register, London, UK
Spyros E. Hirdaris
Lloyd’s Register, London, UK
Paper No:
OMAE2011-49218, pp. 139-147; 9 pages
Published Online:
October 31, 2011
Citation
Lee, Y, Wang, Z, White, N, & Hirdaris, SE. "Time Domain Analysis of Springing and Whipping Responses Acting on a Large Container Ship." Proceedings of the ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. Volume 6: Ocean Engineering. Rotterdam, The Netherlands. June 19–24, 2011. pp. 139-147. ASME. https://doi.org/10.1115/OMAE2011-49218
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