﻿ 64 000 DWT散货船结构轻量化设计和建造
 舰船科学技术  2019, Vol. 41 Issue (3): 51-54 PDF
64 000 DWT散货船结构轻量化设计和建造

1. 浙江国际海运职业技术学院，浙江 舟山 316021;
2. 扬帆集团股份有限公司，浙江 舟山 316100

Structural light-weighting design and construction for 64 000 dwt buck carrier
Liu Zai-liang1, XIA Xiao-hao2, SHAO Han-dong2
1. Zhejiang International Maritime College, Zhoushan 316021, China;
2. Yangfan Group Co., Ltd., Zhoushan 316100, China
Abstract: Structural light-weighting design and construction is one of the important ways to improve the performance of buck carrier. This article take the 64 000 DWT handymax carrier as a example, expound the methods which is used in the hull structural light-weighting design and construction, by reasonable planning the general arrangement and structural arrangement, replacing the rule calculation by finite element analysis, controlling hull construction level and so on. The methods mentioned in the article is summary of experience during the design and construction stage, which have some reference value for designing the similar ships.
Key words: buck carrier     structural light-weighting design and construction     reduce hull structure weight
0 引　言

1 船舶概况

 图 1 64 000 DWT散货船概况 Fig. 1 General of 64 000 DWT buck carrier
2 结构轻量化设计

 图 2 典型横剖面图 Fig. 2 Typical mid section plan
2.1 优化总体布置，降低最大总纵弯矩和剪力，减小构件尺寸

 图 3 总纵许用弯矩包络线 Fig. 3 Permissible values of SWBM

2.2 合理布局结构，简化结构，减轻结构重量

No.3货舱作为风暴压载舱，位置处于船中附近，在相同工况下，其所受载荷远远大于其他货舱，为减小底部和甲板纵向构件计算跨距，底凳朝向布置都朝向No.3货舱，可以缩短计算跨距2.46 m，减小了构件尺寸[5]

2.3 有限元直接计算替代规范计算，减少结构尺寸冗余

 图 4 No.2，No.3，No.4货舱计算模型 Fig. 4 FEM model for No.2/No.3/No.4 cargo hold

 图 5 No.1，No.5货舱计算模型 Fig. 5 FEM model for No.1/No.5 cargo hold

 图 6 No.4货舱外板和底部桁材有限元板厚云图 Fig. 6 Von-mises stress of the shell of C/H and side girder of double bottom

 图 8 外板有限元屈曲因子云图和船底外板展开图 Fig. 8 Buckling result of the shell and shell expansion in No.2 C/H

 图 7 No. 3货舱外板和横向构件有限元材料属性云图 Fig. 7 Von-mises stress of the shell and transverse construction for No.3 C/H

3 通过合理制造工艺，减少多余的辅助结构重量

4 结　语

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