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http://dx.doi.org/10.3744/SNAK.2006.43.3.331

Study on the Design of Upper Deck Hatch Corner Insert Plates of Large Container Carriers  

Park, Sung-Gu (Hull Initial Design Dept., Shipbuilding Div., Hyundai Heavy Industries Co., Ltd.)
Lee, Joo-Sung (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
Journal of the Society of Naval Architects of Korea / v.43, no.3, 2006 , pp. 331-339 More about this Journal
Abstract
The objective of this paper is to calculate the fatigue strength for upper deck hatch corner insert plate of large container carriers without wave load analysis and global finite element analysis at the initial design stage. Wave load analysis and global F.E. analysis for three container carriers have been performed by GL(Germanischer Lloyd) procedure to propose the equation for hatch corner stress range which is the important factor in fatigue strength calculation. Considering the restraining effect of bulkhead, three types of equation, that is, single tight bulkhead, double tight bulkhead and support bulkhead have been proposed. Using the proposed equations, a simplified fatigue analysis based on GL rules has been performed for two container carriers of which fatigue strength analysis was carried out by GL. From the comparison between fatigue strength result of using the proposed equations and that of GL, it has been found that proposed stress range equations are useful for scantling of upper deck hatch corner insert plates for over 8,000 TEU class container carriers.
Keywords
Large container carrier; Upper deck hatch corner insert plate; Germanischer lloyd; Torsional moment; Simplified fatigue analysis;
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