In this paper, a localization method is proposed for improving the curved plate fabrication process. In the curved plate forming, checking the similarity of a manufactured plate to a CAD model is a critical step, which can be done by aligning the manufactured plate to the CAD model. Although there exist several localization methods, they may not be suitable for the curved plate forming since they do not consider production efficiency (the shortest cutting length for trimming margin) for the subsequent assembly process. Therefore, in this work, a constraint for minimizing the cutting length is introduced in the localization scheme and an algorithm is proposed to handle the problem. A manufactured plate is measured and a constraint is imposed on the reference points of a CAD model and the measured points to limit the direction of the movement of the measured points in the solution process. Through this algorithm, the CAD model and the measured points are aligned such that the shortest cutting length is obtained. After the alignment, the cutting lines are computed for marking on the manufactured plate. Various curved plates taken from the real ship manufacturing process are used to demonstrate the performance of the proposed algorithm.
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August 2008
Research Papers
A Localization Algorithm for Improving Fabrication of Curved Hull Plates in Shipbuilding
Jung Seo Park,
Jung Seo Park
Department of Naval Architecture and Ocean Engineering,
e-mail: emot97@snu.ac.kr
Seoul National University
, Seoul 151-742, Korea
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Kwang Hee Ko
Kwang Hee Ko
Department of Mechatronics,
e-mail: khko@gist.ac.kr
Gwangju Institute of Science and Technology
, Gwangju 500-712, Korea
Search for other works by this author on:
Jung Seo Park
Department of Naval Architecture and Ocean Engineering,
Seoul National University
, Seoul 151-742, Koreae-mail: emot97@snu.ac.kr
Jong Gye Shin
Chung Min Hyun
Young Chil Doh
Kwang Hee Ko
Department of Mechatronics,
Gwangju Institute of Science and Technology
, Gwangju 500-712, Koreae-mail: khko@gist.ac.kr
J. Manuf. Sci. Eng. Aug 2008, 130(4): 041013 (8 pages)
Published Online: July 17, 2008
Article history
Received:
November 13, 2007
Revised:
April 30, 2008
Published:
July 17, 2008
Citation
Park, J. S., Shin, J. G., Hyun, C. M., Doh, Y. C., and Ko, K. H. (July 17, 2008). "A Localization Algorithm for Improving Fabrication of Curved Hull Plates in Shipbuilding." ASME. J. Manuf. Sci. Eng. August 2008; 130(4): 041013. https://doi.org/10.1115/1.2953232
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