复合纤维风力机叶片铺层厚度与铺层顺序优化

Optimal Design to Ply Thickness and Ply Sequence of Composite Wind Turbine Blade

探究复合纤维风力机叶片结构铺层优化方法,以解决复杂、多变量叶片结构性能最值优化问题。以某1.5MW风机叶片为对象,分别采用遗传算法与有限元分析相结合方法、试验设计法,对其进行铺层厚度和铺层顺序优化,得到了各轴向布在不同部位的优化铺层厚度范围和铺层顺序。改进原有铺层方案,结构分析结果表明:优化后叶片的失效因子和最大位移均明显降低,结构性能显著提高,验证了方法的正确性和有效性。

Motivated to solve the extreme value optimization problem of complex and multivariable for structure performance, ply optimization method of composite wind turbine blade is researched. Taking some 1.5 MW blade as the research object, ply thickness and ply sequence are optimized by the combining method of finite element analysis and genetic algorithm, experimental design method respec- tively. Optimized ply thickness range and ply sequence at different blade part are obtained. The origi- nal lamination scheme is improved. Structure analysis result indicates that the effectiveness factor, maximum placement of optimized blade is reduced obviously. The correctness and effectiveness of the optimizing method is verified.