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IJAT Vol.15 No.3 pp. 290-300
doi: 10.20965/ijat.2021.p0290
(2021)

Technical Paper:

Development of Support System for Ship-Hull Plate Forming Using Laser Scanner

Masahito Takezawa, Kohei Matsuo, and Takahiro Ando

National Maritime Research Institute (NMRI)
6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan

Corresponding author

Received:
October 30, 2020
Accepted:
January 18, 2021
Published:
May 5, 2021
Keywords:
plate bending, point cloud data, laser scanner, lines of curvature, shipbuilding
Abstract

In this study, we developed a new system that outputs the additional press work procedures necessary to obtain the desired ship-hull surface. This study is unique in terms of determining the additional press work procedures required according to the current plate shape at any work stage by measuring the plate shape using a laser scanner. In the proposed method, a B-spline surface is constructed from a point cloud measured using a laser scanner, and the current plate shape is analyzed based on differential geometry. Additional press lines are estimated based on the difference in the normal curvature along the lines of curvature between the designed target surface and the current surface. We demonstrated the effectiveness of our proposed method through experiments at a shipyard. The proposed system may be used to enhance the efficiency of press work and is expected to be an effective tool for training beginners in the future.

Cite this article as:
Masahito Takezawa, Kohei Matsuo, and Takahiro Ando, “Development of Support System for Ship-Hull Plate Forming Using Laser Scanner,” Int. J. Automation Technol., Vol.15, No.3, pp. 290-300, 2021.
Data files:
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Last updated on Jul. 20, 2021