哈尔滨工程大学学报Issue(7)：819-825,7.DOI:10.3969/j.issn.1006-7043.201208017
基于多岛遗传算法的深海复合材料悬链线立管优化设计
Deepwater composite catenary riser optimization design based on the multi-island genetic algorithm
摘要
Abstract
In deepwater resource exploitation, fiber reinforced composite materials offer several advantages, such as high specific strength, high corrosion resistance, and high fatigue resistance. However, application of composites to offshore risers also introduces a large number of design variables and constraints in structural design due to the ani⁃sotropy of composite materials and multi⁃layer structures. A methodology was presented for optimization design of composite catenary risers based on the global⁃local analysis, with the consideration of design and safety require⁃ments. First, the classical lamination theory was used to obtain the equivalent mechanical properties of the laminat⁃ed tube, and next an equivalent structural model was built and a global dynamic analysis of it under the load of o⁃cean environment was performed. Finally, the optimization procedure was applied by taking the thickness and wind⁃ing angle of layers as design variables and the strength and buckling load of different dangerous cross sections as constraints under various working conditions. The multi⁃island genetic algorithm was used as the optimal strategy;the optimized composite catenary riser meets the strength and stiffness design requirements and saves a certain a⁃mount of composite materials. Research shows that the proposed methodology of composite catenary riser optimiza⁃tion design based on multi⁃island genetic algorithm is feasible.关键词
复合材料/深海悬链线立管/优化设计/多岛遗传算法/屈曲Key words
composite/deepwater catenary riser/optimization design/multi-island genetic algorithm/buckling分类
通用工业技术引用本文复制引用
刘昊,杨和振..基于多岛遗传算法的深海复合材料悬链线立管优化设计[J].哈尔滨工程大学学报,2013,(7):819-825,7.基金项目
国家自然科学基金资助项目（51009093）；国家自然科学重点基金资助项目（50739004）． （）
