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http://dx.doi.org/10.14775/ksmpe.2021.20.04.031

Lifting Lug by the Change of form Using Multivariate Functions: An Optimal Design Study  

Choi, Kyung-Shin (Department of Mechanical Design Engineering, Changwon National University)
Kim, Ji-Jun (Department of Mechanical Engineering, Dong-a University)
Lee, Ji-Han (Lloyd's Register)
Chan, Gwang-Woo (Nopim Technical Research Institute)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.4, 2021 , pp. 31-38 More about this Journal
Abstract
In this paper, we proposed an optimal design for determining the shape of a lifting lug freely by applying a multivariate function to the D-type lug, which is commonly used in shipyards. We derived the optimal aspect ratio of the lug through structural analysis and analyzed the safety and behavior of the lug aspect ratio. As a result, two types of final candidates, both lighter than the existing lug weight, were suitable for the ratio. They were found to have the greatest force at an angle of 45 degrees when a load of 100 tons was imposed. When the horizontal and vertical feature ratio of the lug was 1:3, it showed excellent results in terms of safety rates while maintaining weight reduction and functional aspects.
Keywords
Aspect Ratio; Lifting Lug; Safety Factor; Fitness; Pop-Size; Mutation; Generation; Crossover;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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