|本期目录/Table of Contents|

[1]顾 俊 何建军 刘宇辰 郑凯奇.FLNG船凝析油舱与LNG舱过渡区域结构强度分析及优化[J].中国海上油气,2019,31(05):175-182.[doi:10.11935/j.issn.1673-1506.2019.05.020]
 GU Jun HE Jianjun LIU Yuchen ZHENG Kaiqi.Structural strength analysis and optimization on the transition zones of the condensate tank and LNG tank of FLNG ship[J].China Offshore Oil and Gas,2019,31(05):175-182.[doi:10.11935/j.issn.1673-1506.2019.05.020]
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FLNG船凝析油舱与LNG舱过渡区域结构强度分析及优化()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年05期
页码:
175-182
栏目:
海洋工程
出版日期:
2019-10-10

文章信息/Info

Title:
Structural strength analysis and optimization on the transition zones of the condensate tank and LNG tank of FLNG ship
文章编号:
1673-1506(2019)05-0175-08
作者:
顾 俊1 何建军2 刘宇辰1 郑凯奇3
(1. 中国船舶及海洋工程设计研究院 上海 200011; 2. 江苏韩通船舶重工有限公司 江苏南通 226361; 3. 广船国际有限公司 广东广州 511462)
Author(s):
GU Jun1 HE Jianjun2 LIU Yuchen1 ZHENG Kaiqi3
(1. Marine Design & Research Institute of China, Shanghai 200011, China; 2. Jiangsu Hantong Ship Heavy Industry Co., Ltd., Nantong, Jiangsu 226361, China; 3. Guangzhou Shipyard International Co., Ltd., Guangzhou, Guangdong 511462, China)
关键词:
FLNG LNG舱 凝析油舱 过渡区域 三维有限元模型 强度分析 结构轻量化
Keywords:
FLNG LNG tank condensate tank transition zone three-dimensional finite element model strength analysis lightweight structure
分类号:
U663.2
DOI:
10.11935/j.issn.1673-1506.2019.05.020
文献标志码:
A
摘要:
以一艘船体纵向结构存在突变的FLNG船为研究目标,根据BV规范要求,利用有限元分析技术和VeriSTAR Hull软件,对目标船凝析油舱与LNG舱之间的结构突变区域的强度进行评估。建立了FLNG舱段的三维有限元模型,根据BV规范确定了计算工况及载荷,对目标船过渡区域的结构强度和应力水平进行了分析。结果表明:应对凝析油舱与LNG舱之间的水平桁、垂直桁根部设置大肘板,以增大根部的剪切面积,降低应力水平; 同时采用合理的端部大肘板形式,并在端部大肘板处开洞,以减轻结构重量; 对于内甲板过渡结构,由于结构较为冗余,因此取消靠近舷侧的两根甲板纵桁,以满足结构轻量化的要求。本文研究可为我国大型FLNG设计尤其是对FLNG船舱存在结构突变过渡区域的设计提供借鉴。
Abstract:
In this paper, an FLNG ship with a rapidly changing hull longitudinal structure was studied. According to the BV rule, the structural strength of the abruptly changed zones between the condensate tank and LNG tank of target ship was evaluated by using finite element analysis technology and VeriSTAR Hull software. The three-dimensional finite element model of the FLNG tank section was established, the loading conditions and loads were determined according to the BV rule, and the structural strength and stress level of the target ship transition zones were analyzed. The results show that large brackets should be placed at the roots of horizontal girder and vertical girder between the condensate tank and the LNG tank to increase the shear area of the root and reduce the stress level. At the same time, a reasonable pattern of big bracket at the end was used, and holes were made at the big bracket to reduce the structural weight; for the transitional structure of inner deck, due to the more redundant structure, the two deck longitudinal girders near the side shell were removed to meet the requirements of lightweight structure. This paper can provide references for the design of China's large FLNG ship, especially for the structural transition zones of FLNG tank.

参考文献/References:

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备注/Memo

备注/Memo:
第一作者简介: 顾俊,男,高级工程师,主要研究方向为FLNG船型开发研究。地址:上海市黄浦区中山南一路168号1415室(邮编:200011)。E-mail:gujunlove@126.com。
更新日期/Last Update: 1900-01-01