Steel model test on structural strength of ship superstructure  underoverall longitudinal bending

LIU Junjie; DING Zhen; MA Lin; BIAN Xin; LI Zhengjie

doi:10.19693/j.issn.1673-3185.02240

Volume 17 Issue 2

Apr. 2022

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Article Navigation > Chinese Journal of Ship Research > 2022 > 17(2): 135-141

LIU J J, DING Z, MA L, et al. Steel model test on structural strength of ship superstructure underoverall longitudinal bending[J]. Chinese Journal of Ship Research, 2022, 17(2): 135–141 doi: 10.19693/j.issn.1673-3185.02240

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Steel model test on structural strength of ship superstructure underoverall longitudinal bending

doi: 10.19693/j.issn.1673-3185.02240

1.
China Ship Scientific Research Center, Wuxi 214082, China
2.
Shanghai Division, China Ship Development and Design Center, Shanghai 201108, China

Received Date: 2020-12-24
Rev Recd Date: 2021-03-26

Available Online: 2022-04-01

Publish Date: 2022-04-20

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives The superstructure participates in the overall longitudinal bending of a ship, which leads to stress concentration in certain parts and threatens the safety of the ship's structure. The large-scale steel model test can truly reflect the structural response characteristics of superstructures. Methods This paper studies the structural strength of a certain ship's superstructure. Through the equivalent simplification of the main hull structure, a large-scale steel model including the superstructure and main body is designed, and structural strength model testing is carried out under hogging moment load. Results The test and finite element calculation results show obvious stress concentration phenomena in the corners of the side opening groups of the superstructure and the edges of the round transitions between the sidewall and main deck. The bending efficiency of the superstructure is 0.315. Conclusions The results of this study can provide references for the local structural strengthening and optimal superstructure design of target ships. The simplified design method of the ship hull model provided in this paper can also serve as a reference for the design of large-scale ship models.
- superstructure,
- structural strength,
- stress concentration,
- steel model test,
- bending efficiency

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References(10)

References

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