Most shipyard companies maintain efficiency in all aspects of their business to survive. One of these aspects is ship production costs and their reduction. This study proposes a solution to this problem using an optimization method. A hatch cover composed of plates and stiffeners was selected as a case study. In this study, the mass and material cost of the hatch cover was optimized as an objective function using the Pareto approach with developed optimization methods. Plate thickness t, stiffener shape s, and plate material type m were selected as the design variables in this study along with some constraints. To estimate the optimal plate thickness, an expression of stress equations was developed using an optimization technique. Furthermore, stiffener shape and plate material type selection were optimized using a genetic algorithm (GA). The results show that the optimization method is effective to decrease the mass and material cost of a hatch cover.
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November 2021
November 12 2021
Study on Optimal Design of a Folding-Type Hatch Cover Considering Material Selection
Gerry Liston Putra;
Gerry Liston Putra
Hiroshima University, Hiroshima / Universitas Indonesia, Depok
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Mitsuru Kitamura;
Mitsuru Kitamura
Hiroshima University, Hiroshima
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Akihiro Takezawa
Akihiro Takezawa
Hiroshima University, Hiroshima
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J Ship Prod Des 37 (04): 237–247.
Paper Number:
SNAME-JSPD-12190063
Article history
Received:
April 22 2021
Accepted:
June 01 2021
Published Online:
November 12 2021
Citation
Putra, Gerry Liston, Kitamura, Mitsuru, and Akihiro Takezawa. "Study on Optimal Design of a Folding-Type Hatch Cover Considering Material Selection." J Ship Prod Des 37 (2021): 237–247. doi: https://doi.org/10.5957/JSPD.12190063
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