Equivalent mechanical properties of spiral skeleton composite flexible low-temperature pipeline based on NIAH

PDF(1878 KB)

Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (13) : 10-16.

YING Xipeng1, GENG Dongling1, CAO Huixin1, ZHANG Kailun1, BU Yufeng1, YANG Zhixun2, YAN Jun1

Author information +

History +

Abstract

FLNG (Floating Liquefied Natural Gas) is a new offshore floating production system that liquefies, stores, and unloads Liquefied Natural Gas (LNG). Helical framework cryogenic pipe is one piece of the most important equipment in the system. However, the structure of the helical framework cryogenic pipe is complex. There are a lot of nonlinear problems such as contact and friction between structural layers. As a result, it is quite difficult for theoretical modeling and numerical analysis. The obvious one-dimensional periodicity of helical framework cryogenic pipe is focused on in this paper. Based on the Novel Implementation of Homogenization method (NIAH), the microcell model of helical framework cryogenic pipe is established and the periodic boundary conditions are applied to solve the equivalent mechanical properties of the macro structure. The equivalent method based on NIAH is validated by comparing with the calculated results of fine finite element model. It is found that the relative error is within 3.60% and the calculation cost is reduced by 32 times approximately. In addition, for the structure characteristics of spiral wound hose, a new method of applying double symmetric boundary conditions is proposed, which reduces the error by 78.00%, compared with the traditional single symmetric boundary conditions. Finally, the different equivalent stiffness results based on different periodic boundary conditions are compared and the structural characteristics of the different periodic boundary conditions are summarized. It provides a reliable and fast equivalent calculation method for structure design and analysis of the helical framework cryogenic pipe.

Key words

Helical framework cryogenic pipe / Asymptotic homogenization method / Double symmetric periodic boundary condition / Equivalent stiffness calculation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

YING Xipeng1, GENG Dongling1, CAO Huixin1, ZHANG Kailun1, BU Yufeng1, YANG Zhixun2, YAN Jun1. Equivalent mechanical properties of spiral skeleton composite flexible low-temperature pipeline based on NIAH[J]. Journal of Vibration and Shock, 2023, 42(13): 10-16

References

[1] 罗东雨, 孙建刚, 柳春光等. 考虑保温层的LNG储罐隔震力学模型及响应研究[J]. 振动与冲击, 2020, 39(23):255-262.
Luo Dongyu, Sun Jiangang, Liu Chunguang, et al. Study on isolation simplification model and isolation response of LNG storage tank considering thermal insulation layer[J]. Journal of Vibration and Shock, 2020, 39(23):255-262.（in Chinese）
[2] 秦梦飞, 施伟, 柴威等. 台风过境下大型单桩式海上风机结构动力特性研究[J]. 力学学报, 2022, 54(04):881-891.
Qin Mengfei, Shi Wei, Chai Wei, et al. Research on dynamic characteristics of large-scale pile offshore wind turbine under typhoon event[J]. Chinese Journal of Theoretical and Applied Mechanics, 2022, 54(04):881-891.（in Chinese）
[3] 王伟波, 郝娇山, 刘柏圻等. LNG超低温调节阀阀杆流激共振分析[J]. 振动与冲击, 2021, 40(03):218-225.
Wang Weibo, Hao Jiaoshan, Liu Baiqi, et al. Flow-induced resonance analysis of valve stem for LNG ultra-low temperature control valve[J]. Journal of Vibration and Shock, 2021, 40(03):218-225.（in Chinese）
[4] 杨亮, 刘淼儿, 刘云等. 浮式LNG生产储卸装置卸料系统研究[J]. 船舶与海洋工程, 2018, 34(03):8-14.
Yang Liang, Liu Miaoer, Liu Yun, et al. Floating LNG production storage and offloading unit discharge system research[J]. Journal of ship and ocean engineering, 2018, 34 (3):8-14.（in Chinese）
[5] 徐万海, 吴应湘, 钟兴福等. 海洋细长结构参数激励不稳定区的确定方法[J]. 振动与冲击, 2011, 30(09):79-83+93.
Xu Wanhai, Wu Yingxiang, Zhong Xingfu, et al. Methods for parametric excitation instability analysis of slender flexible cylindrical structures in offshore engineering[J]. Journal of Vibration and Shock, 2011, 30(09):79-83+93.（in Chinese）
[6] 张进, 安晨, 高强等. 海洋LNG低温软管结构设计与试验研究现状[J].海洋工程装备与技术, 2020, 7(05):300-310.
Zhang Jin, An Chen, Gao Qiang, et al. Current situation of design and experimental study of marine LNG cryogenic hose structure[J]. Ocean Engineering Equipment and Technology, 2020, 7(05):300-310.（in Chinese）
[7] 马烨璇, 徐万海, 徐增伟等. 基于多项式拟合的细长梁结构振动位移重构方法[J]. 振动与冲击, 2020, 39(11):152-157+183.
Ma Yexuan, Xu Wanhai, Xu Zengwei, et al. Displacement reconstruction of slender beam based on polynomial fitting method[J]. Journal of Vibration and Shock, 2020, 39(11):152-157+183.（in Chinese）
[8] 杨亮, 刘淼儿, 刘云等. FLNG低温软管技术现状与应用前景分析[J]. 海洋工程装备与技术, 2019, 6(06):810-818.
Yang Liang, Liu Miaoer, Liu Yun, et al. FLNG cryogenic hose technology present situation and the application prospect analysis [J]. Journal of Marine engineering equipment and technology, 2019, 6 (6):810-818.（in Chinese）
[9] 谢彬, 喻西崇, 韩旭亮等. FLNG研究现状及在中国南海深远海气田开发中的应用前景[J]. 中国海上油气, 2017, 29(02):127-134.
Xie Bin, Yu Xichong, Han Xuliang, et al. Research status and application prospect of FLNG in the development of Far-reaching Sea gas field in south China Sea[J]. China Offshore Oil and Gas, 2017, 29(02):127-134.（in Chinese）
[10] Phillip J. C. Preparing the Way for Future Offshore LNG Marine Terminals[C]//Proceeding of Offshore Technology Conference, 2008.
[11] Yang Zhixun, Yan Jun, Chen Jinlong, et al. Multi-Objective Shape Optimization Design for LNG Cryogenic Helical Corrugated Steel Pipe[J]. Journal of Offshore Mechanics and Arctic Engineering. 2017, 139(5) 051703.
[12] 杨志勋, 阎军, 卢青针等. 结构尺寸对LNG低温螺旋波纹钢管弯曲性能的影响分析[J]. 计算机辅助工程, 2016, 25(06):14-19.
Yang Zhixun, Yan Jun, Lu Qingzhen, et al. Influence of Structure Size on Bending Performance of LNG Low-temperature Spiral Corrugated Steel Tube[J]. Computer Aided Engineering, 2016, 25(06):14-19.（in Chinese）
[13] 杨亮, 胡海涛, 熊飞宇等. 结构尺寸对LNG低温柔性管道内衬层力学性能的敏感性分析[J]. 计算机辅助工程, 2018, 27(02):23-29.
Yang Liang, Hu Haitao, Xiong Feiyu, et al. Sensitivity Analysis of Structural Dimensions to mechanical properties of LNG low temperature flexible pipeline liner[J]. Computer Aided Engineering, 2018, 27(02):23-29.（in Chinese）
[14] Buitrago J., Slocum S. T., Hudak S. J., et al. Cryogenic structural performance of a corrugated pipe[C]// Proceedings of ASME 2010 29th International Conference on Ocean, 2010.
[15] Vicente P. G., Garcia A., Viedma A. Experimental investigation on heat transfer and frictional characteristics of spirally corrugated tubes in turbulent flow at different prandtl numbers[J]. International Journal of Heat and Mass Transfer, 2004, 47(04): 671-681.
[16] Cai Yuanwu, Xu Liang, Cheng Gengdong. Novel numerical implementation of asymptotic homogenization method for periodic plate structures[J]. International Journal of Solids and Structures, 2014, 51:284-292.
[17] Yi Sinan, Xu Liang, Cheng Gengdong, et al. FEM formulation of homogenization method for effective properties of periodic heterogeneous beam and size effect of basic cell in thickness direction[J]. Computers & Structures, 2015, 156:1-11.
[18] Xu Liang, Cheng Gengdong, Yi Sinan. A new method of shear stiffness prediction of periodic Timoshenko beams[J]. Mechanics of Advanced Materials and Structures. 2016, 23(6):670-680.
[19] Xu Liang, Cheng Gengdong. Shear stiffness prediction of Reissner-Mindlin plates with periodic microstructures[J]. Mechanics of Advanced Materials and Structures. 2017, 24(4):271-286.
[20] Cheng Gengdong, Cai Yuanwu, Xu Liang. Novel implementation of homogenization method to predict effective properties of periodic materials[J]. Acta Mechanica Sinica, 2013, 29(4): 550-556.