Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2021 , Vol. 55 >Issue 11: 1429 - 1437

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2020.056

A Structural Reconstruction Method of Large Ship Based on Grey Theory

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  • College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China

Received date: 2020-02-25

  Online published: 2021-12-03

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Abstract

Aimed at the reconstruction problem of foreign large-scale warships, the spacing and minimum plate thickness of some profiles of large-scale warships are obtained by adopting the grey theory method and taking the data in the design code of warships as samples. Based on the advantages of the grey theory in dealing with small data and uncertainties, the grey models of different captains and their corresponding profile parameters are built and compared with the data of foreign large ships. The results show that the method has a high accuracy in calculating structural parameters with a strong correlation with the total longitudinal strength. The reason for the deviation in calculating structural parameters with local strength as the main consideration factor lies in the fact that the captain parameters as the reference for modeling are highly correlated with the total longitudinal strength. The magnitude of the deviation by calculating the grey relational degree between the structural parameters and the captain is described, and the results obtained are of engineering application value.

Key words： ship reconstruction; grey theory; grey relational analysis; total longitudinal strength

Cite this article

WANG Zhikai, CHEN Jin, YAO Xiongliang, JIANG Zifei . A Structural Reconstruction Method of Large Ship Based on Grey Theory[J]. Journal of Shanghai Jiaotong University, 2021 , 55(11) : 1429 -1437 . DOI: 10.16183/j.cnki.jsjtu.2020.056

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