There are many PE(Pre-Erection) Blocks in open areas of the shipyard, which are supported by the wooden, concrete, or steel supports. Their position and numbers are decided on a basis of the workers’ experiences. Recently, many shipyards have been making PE blocks with various shape and weight distribution because of the variety of kinds of ships and their building technology. Seriously, they are treating blocks which have not been experienced. In order to evaluate the reliability of all support plans of PE Blocks in such situation, many man hours (MH) are consumed, and the special knowledge and technology about structural analysis are required. We proposed how to conveniently and quickly evaluate the structural safety on PE block supports and developed an application system to implement the evaluation process with three dimensional part models of the PE block and their weight information. The evaluation is based on the simplification to a grillage model of a PE block and its grillage analysis. The load distribution on the grillage model is calculated by two approaches. The first is that the load distribution on the grillage nodes are estimated with the real weight and the center of gravity of each part of a PE block, which can be provided from design databases of the shipyard. The other is that the load distribution is optimally estimated only with the weight and the center of gravity of sub blocks of a PE block. The latter is useful in the case that block information of mother ships can be obtained without the detail design of the PE block. The integrated system has been comprehensively implemented in order to make the grillage model from the three dimensional CAD models of the PE block and their weight information, and to perform the grillage analysis for the reaction forces on the block supports. In the application program, the grillage model can be automatically built from CAD models of PE block. Also the grillage can be modified by inserting, splitting, and deleting a beam element.
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ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
June 9–14, 2013
Nantes, France
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5533-1
PROCEEDINGS PAPER
Three Dimensional Grillage Analysis of Reactions on Supports of a Pre-Erection Block Available to Purchase
Sungchan Kim,
Sungchan Kim
Inha Technical College, Incheon, Republic of Korea
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Cheolho Ryu,
Cheolho Ryu
Inha Technical College, Incheon, Republic of Korea
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Youngho Kim,
Youngho Kim
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
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Changbong Han,
Changbong Han
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
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Dong Geun Kim
Dong Geun Kim
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
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Sungchan Kim
Inha Technical College, Incheon, Republic of Korea
Cheolho Ryu
Inha Technical College, Incheon, Republic of Korea
Youngho Kim
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
Changbong Han
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
Dong Geun Kim
Daewoo Shipbuilding & Marine Engineering Co., Ltd., Geoje, Gyungsangnam, Republic of Korea
Paper No:
OMAE2013-11349, V02BT02A036; 7 pages
Published Online:
November 26, 2013
Citation
Kim, S, Ryu, C, Kim, Y, Han, C, & Kim, DG. "Three Dimensional Grillage Analysis of Reactions on Supports of a Pre-Erection Block." Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2B: Structures, Safety and Reliability. Nantes, France. June 9–14, 2013. V02BT02A036. ASME. https://doi.org/10.1115/OMAE2013-11349
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