Structural strength analysis of dispersed cross-deck of trimaran

HUANG Liwei; WEI Chengzhu; CHEN Luyun; LIANG Xiaofeng; YI Hong

doi:10.19693/j.issn.1673-3185.01622

Volume 15 Issue 5

Dec. 2020

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Chinese Journal of Ship Research > 2020 > 15(5): 124-131. > DOI: 10.19693/j.issn.1673-3185.01622 CSTR: 32390.14.j.issn.1673-3185.01622

HUANG L W, WEI C Z, CHEN L Y, et al. Structural strength analysis of dispersed cross-deck of trimaran[J]. Chinese Journal of Ship Research, 2020, 15(5): 124–131. DOI: 10.19693/j.issn.1673-3185.01622

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Structural strength analysis of dispersed cross-deck of trimaran

1.
Key Laboratory of Marine Intelligent Equipment and System of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
2.
China Ship Development and Design Center, Shanghai 201108, China

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Received Date: May 23, 2019
Revised Date: September 16, 2019
Available Online: December 07, 2020

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.

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Abstract

Objectives Reducing the weight of the cross-deck is an important method for reducing the weight and center of gravity of a trimaran. Structural strength analysis is used as the premise for judging whether a weight reduction method is feasible.
Methods Based on the loading characteristics of a trimaran, a new dispersed cross-deck structure is proposed in which most of the unnecessary panels are removed. The finite element (FE) direct calculation method is adopted to analyze the structural strength of the dispersed cross-deck, and its strength is then compared with that of the traditional integral cross-deck.
Results The results show that using the dispersed cross-deck can reduce the structural weight and center of gravity of a trimaran by 6.75% and 5.54% respectively on the premise of meeting the structural strength requirements.
Conclusions Using the dispersed cross-deck can greatly reduce the structural weight and vertical location of the center of gravity, which provides new approaches for the structural design of trimarans.
- trimaran,
- dispersed cross-deck,
- structural strength,
- finite element method

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