Optimization study on stiffness configuration of flexible connectors for rectangular array-type floating platform

被引:0
作者
Liu J.-R. [1 ,2 ]
Zhang J.-L. [1 ,2 ]
Zhang H.-C. [1 ]
Xu D.-L. [1 ]
Wen J. [3 ]
Liu L.-L. [3 ]
Wang X.-Y. [3 ]
机构
[1] College of Mechanical and Vehicle Engineering, Hunan University, Changsha
[2] China Ship Scientific Research Center, Wuxi
[3] Shanghai Merchant Ship Design & Research Institute, Shanghai
来源
Chuan Bo Li Xue/Journal of Ship Mechanics | 2023年 / 27卷 / 11期
关键词
connector; flexible-rigid-fluid coupling; floating platform; stiffness;
D O I
10.3969/j.issn.1007-7294.2023.11.009
中图分类号
学科分类号
摘要
A modularized very large floating platform forms a multi-oscillator system with flexible-rigid-flu⁃ id coupling. The flexible connectors are one of the most important parts of a multi-module floating platform, appropriate configuration of connectors’stiffness is helpful to improve the safety and stability of the system. The dynamic model of a rectangular array-type floating platform was established based on linear wave theory and related dynamics theories. The linear weighted sum method and genetic algorithm (GA) were used for op⁃ timizing stiffness configuration of flexible connectors of the rectangular array-type floating platform under three typical layouts. A series of optimal stiffness configuration results were obtained by changing the weights of the optimization indexs and the relative displacement constraints, the general laws of connectors’stiffness configuration for the rectangular array-type floating platform and the loads’coupling effect between two-di⁃ rectional-layout connectors were studied, which provide guidance for the design of connectors’stiffness con⁃ figuration of rectangular array-type floating platforms under different arrangements. © 2023 China Ship Scientific Research Center. All rights reserved.
引用
收藏
页码:1671 / 1684
页数:13
相关论文
共 21 条
[1]  
Wang D, Riggs H R, Ertekin R C., Three-dimensional hydroelastic response of a very large floating structure, Int J Off⁃ shore Polar Eng, 1, 4, pp. 307-316, (1991)
[2]  
Kim B W, Young H S, Kyoung J H, Et al., Evaluation of bending moments and shear forces at unit connections of very large floating structures using hydroelastic and rigid body analyses, Ocean Engineering, 34, 11, pp. 1668-1679, (2007)
[3]  
Cui Weicheng, Wu Yousheng, Li Runpei, Technical problems in the development of very large floating structures, Ocean Engineering, 18, pp. 1-6, (2000)
[4]  
Mcallister K R., Mobile offshore bases-An overview of recent research[J], Journal of Marine Science and Technology, 2, 3, pp. 173-181, (1997)
[5]  
Yu Lan, Li Runpei, Shu Zhi, Recent research and development of the connector design for mobile offshore bases, Ocean Engineering, 21, 1, pp. 60-66, (2003)
[6]  
Haney J A., Mob connector development, Proceeding of Third Int Work on Very Large Float Struct, (1999)
[7]  
Rognaas G, Xu J, Lindseth S, Et al., Mobile offshore base concepts. Concrete hull and steel topsides, Mar Struct, 14, pp. 5-23, (2001)
[8]  
Xu D L., On study of nonlinear network dynamics of flexibly connected multi-module very large floating structures, Vul⁃ nerability, Uncertainty, and Risk: Quantification, Mitigation, and Management, pp. 1805-1814, (2014)
[9]  
Xia S Y, Xu D L, Zhang H C, Et al., On retaining a multi-module floating structure in an amplitude death state, Ocean Eng, 121, pp. 134-142, (2016)
[10]  
Khabakhpasheva T I, Korobkin A A., Hydroelastic behaviour of compound floating plate in waves, Journal of Engineering Mathematics, 44, pp. 21-40, (2002)