2018 Fiscal Year Final Research Report

Development of full-automatic line heating system

Research Project

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Project/Area Number	16H04605
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Single-year Grants
Section	一般
Research Field	Naval and maritime engineering
Research Institution	Osaka Prefecture University
Principal Investigator	Shibahara Masakazu 大阪府立大学, 工学(系)研究科(研究院), 准教授 (20350754)
Co-Investigator(Kenkyū-buntansha)	伊藤真介大阪府立大学, 工学(系)研究科(研究院), 客員研究員 (50535052) 生島一樹大阪府立大学, 工学(系)研究科(研究院), 助教 (80734003) 大沢直樹大阪大学, 工学研究科, 教授 (90252585)
Project Period (FY)	2016-04-01 – 2019-03-31
Keywords	線状加熱 / 船体構造 / 有限要素法 / モンテカルロ法 / 人工知能 / 固有ひずみ法 / 熱弾塑性解析
Outline of Final Research Achievements	In this research, a line heating planning system based on the inherent strain method was developed. By using the system based on the Monte Carlo simulation, the fundamental shape of bowl shape, saddle shape and twisted shape were formed. According to the obtained heating plan, a thermal elastic plastic FE analysis was performed. As a result, it was found that the deformed shape also agrees with the target shape. The system was also applied to the generation of the shape of a bow of real ship which has a large curvature. The targeted shape was also reproduced in the real complex shape. In addition, another system based on Artificial Intelligence (AI) was also proposed. By using AI based system, it was found that fundamental shapes can be formed.
Free Research Field	船舶海洋工学
Academic Significance and Societal Importance of the Research Achievements	任意形状外板が完全自動で作成可能な線状加熱システムを開発することを目的として本研究を実施した。本システムの開発により、従来では、造船現場において熟練技能者のノウハウに基づき行われていた作業の自動化につながることから、今後、あらゆる産業分野で求められる完全自動化生産につながるものといえる。また、線状加熱による変形量が固有変形量という形でデータベースに蓄積され、それを基に、開発システムが、加熱位置や熱源出力を自動的に決定するため、造船分野における板曲げ技術伝承問題の解決に大きく前進する。