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Fundamental Research on a development of CFRP Riser Pipe for 4000 m Deep Sea Scientific Drilling

4000米深海科学钻探用CFRP立管研制基础研究

基本信息

批准号：
17560711
负责人：
WATANABE Yoshiyasu
金额：
$ 1.98万
依托单位：
Tokai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560711/
关键词：
CFRP riser pipe mechanical structure drilling 4000 m deep sea scientific riser drillng finite element analysis optimization model test tensile strength fracture strength ライザー管 CFRP 4000m水深科学掘削共振

项目摘要

A deep sea scientific riser drilling vessel "Chikyu" was constructed in Japan and it is planned to drill the sea floor at the water depth of 4000 m to obtain the mantle in the near future. However, it is almost impossible to use the steel riser pipe at the water depth of 4000 m and the development of CFRP riser pipe is desired. The key element of the CFRP riser pipe is its mechanical structure where the CFRP pipe is connected at the pipe ends to the steel connectors through several pairs of mutually contacting threads. This research is concerned with the development of this type of CFRP riser pipe.In the research of 2005, the configuration and dimension of the mechanical structure were parametrically changed and their influence on the strength of the mechanical structure was made clear using FEM analysis and the optimization of the mechanical structure of the CFRP riser pipe was performed. The characteristic of the axial vibration of the optimized CFRP riser pipe was also studied and it was confirmed that the riser pipe had no resonance with the heaving of the drill ship.In the research of 2007, a tensile test model, which had the optimized dimension, was fabricated and tested and its tensile strength, elongations and strains were obtained. The fracture process of the mechanical structure was made clear from the correlation between the experimental strains and the calculated strains which were obtained from FEM analysis with assuming crack propagation passes based on the damage observation of the CFRP pipe section.Based on the results stated above, the thinking concerning the design of the CFRP riser pipe for 4000 m deep sea has been summarized.

日本建造了一艘深海科学立管钻探船“Chikyu”，计划在不久的将来在4 000米水深的海底钻探，以获取地幔。然而，在4000 m水深处使用钢制立管几乎是不可能的，因此需要发展CFRP立管。CFRP立管的关键元件是其机械结构，其中CFRP管在管端通过几对相互接触的螺纹连接到钢连接器。本研究就是围绕这一新型CFRP立管的研制而展开的，在2005年的研究中，对机械结构的结构和尺寸进行了参数化的改变，并通过有限元分析明确了其对机械结构强度的影响，对CFRP立管的机械结构进行了优化。在2007年的研究中，制作了优化尺寸的CFRP立管拉伸试验模型，并进行了拉伸试验，得到了该模型的拉伸强度、延伸率和应变。通过对CFRP管段的损伤观察，假设裂纹扩展通道，通过有限元分析得到的计算应变与实验应变的相关性，明确了机械结构的断裂过程，并在此基础上总结了4000 m深海CFRP立管的设计思路。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

最適化された深海掘削用CFRP製ライザー管継手構造の引張強度

深海钻探CFRP立管接头结构抗拉强度优化

DOI：
发表时间：
2007
期刊：
日本船舶海洋工学会講演会論文集第4号
影响因子：
0
作者：
渡辺喜保;伊藤成正;鈴木英之;宇都正太郎
通讯作者：
宇都正太郎

Optimization of the Joint Structure of CFRP Riser Pipe for Deep Sea Drilling.

深海钻探CFRP立管接头结构优化。

DOI：
发表时间：
2006
期刊：
Conference Proceedings of The Japan Society of Naval Architecture and Ocean Engineers Volume3
影响因子：
0
作者：
西尾茂;桐本兼輔;Masa-aki Sato;Masa-aki Sato;Koji Kuraoka;Masa-aki Sato;Ko ji Kuraoka;佐藤正昭;Koji Kuraoka;Masa-aki Sato;Koji Kuraoka;渡辺喜保外3名;渡辺喜保外3名;Yoshiyasu Watanabe et al.;Yoshiyasu Watanabe et al.;渡辺喜保外3名;渡辺喜保外3名;渡辺喜保外3名;Yoshiyasu Watanabe et al.
通讯作者：
Yoshiyasu Watanabe et al.

Optimization of Multiple Traplock Structure of CFRP Riser Pipe for Deep Sea Drilling

深海钻探CFRP立管多重锁结构优化

DOI：
发表时间：
2007
期刊：
Proceedings of International Society of Offshore and Polar Engineers ISOPE 2007(印刷中)
影响因子：
0
作者：
西尾茂;桐本兼輔;Masa-aki Sato;Masa-aki Sato;Koji Kuraoka;Masa-aki Sato;Ko ji Kuraoka;佐藤正昭;Koji Kuraoka;Masa-aki Sato;Koji Kuraoka;渡辺喜保外3名;渡辺喜保外3名;Yoshiyasu Watanabe et al.;Yoshiyasu Watanabe et al.;渡辺喜保外3名;渡辺喜保外3名
通讯作者：
渡辺喜保外3名

Tensile Strength of Optimized Joint Structure of CFRP Riser Pipe for Deep Sea Drilling.

深海钻探CFRP立管优化接头结构的拉伸强度。

DOI：
发表时间：
2007
期刊：
Conference Proceedings of The Japan Society of Naval Architecture and Ocean Engineers Volume4(to be published)
影响因子：
0
作者：
西尾茂;桐本兼輔;Masa-aki Sato;Masa-aki Sato;Koji Kuraoka;Masa-aki Sato;Ko ji Kuraoka;佐藤正昭;Koji Kuraoka;Masa-aki Sato;Koji Kuraoka;渡辺喜保外3名;渡辺喜保外3名;Yoshiyasu Watanabe et al.
通讯作者：
Yoshiyasu Watanabe et al.

Optimization of a MultipleTraplock Structure of CFRP Riser Pipe for Deep Sea Drilling

深海钻探CFRP立管多活板结构优化