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中文摘要：
采用进化策略的优化方法对防弯器的结构进行优化设计,以达到减小结构体积、减轻结构质量的目的.运用进化策略在给定的设计参数范围内对结构进行优化,并通过细长梁模型模拟防弯器和柔性立管的组合结构,检验优化后的结构是否符合设计要求.以防弯器体积为目标函数,将其结构主要几何参数作为变量,在给定的受力条件下,以防弯器弯曲曲率小于允许值为约束条件,对结构进行优化设计.将本文程序的优化结果与不同优化方法的计算结果进行对比,结果表明：本优化方法的收敛性较好,优化效果明显,而且在一定程度上要优于遗传算法的优化效果.
英文摘要：
The optimization based on evolution strategy was conducted to find the bend stiffener with the smallest volume.The evolutionary strategy within a given range of design parameters to optimize the structure was applied,and then the validity of structure of the slender beam model to simulate the bend stiffener and flexible risers was checked.The optimization design used the volume as the objective function with its mainly geometric parameters as variables to search the smallest structure that the curvature is less than the allowable value under the given conditions.In comparison with other document,it approves that the evolution strategy is excellent,and more effective than genetic algorithm.
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