Two-dimensional model drop tests were carried out to investigate slamming phenomena of a flat-inclined ship bottom in different drop heights. The water-entry velocities of the model, slamming pressures on the bottom and the resultant dynamic strains in the structures were recorded and the characteristic of the loads and structural responses were analyzed. To deduce design pressures for the frame structures, structural responses of the model under evenly distributed static pressures were calculated with the finite element method. Then, the experimental and calculated responses of the structures are compared with each other and a reduction factor is introduced to represent the relations of the two pressures. This reduction factor is linearly related to water-entry velocity and deadrise angle, and it could be used in the transformation of the measured slamming pressure peaks to equivalent design pressures in designing the frame structures of the bottom frames.
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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4819-7
PROCEEDINGS PAPER
The Equivalent Design Pressure of Ship Frame Structures Under Bottom Slamming Loads
Hui Wang,
Hui Wang
China Ship Scientific Research Center, Wuxi, Jiangsu, China
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Xuekang Gu,
Xuekang Gu
China Ship Scientific Research Center, Wuxi, Jiangsu, China
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Jinwei Shen
Jinwei Shen
China Ship Scientific Research Center, Wuxi, Jiangsu, China
Search for other works by this author on:
Hui Wang
China Ship Scientific Research Center, Wuxi, Jiangsu, China
Xuekang Gu
China Ship Scientific Research Center, Wuxi, Jiangsu, China
Jinwei Shen
China Ship Scientific Research Center, Wuxi, Jiangsu, China
Paper No:
OMAE2008-58020, pp. 995-1000; 6 pages
Published Online:
July 27, 2009
Citation
Wang, H, Gu, X, & Shen, J. "The Equivalent Design Pressure of Ship Frame Structures Under Bottom Slamming Loads." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 2: Structures, Safety and Reliability. Estoril, Portugal. June 15–20, 2008. pp. 995-1000. ASME. https://doi.org/10.1115/OMAE2008-58020
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