摘要
复合材料风力机叶片的性能因铺层参数的变化而不同,为了优化铺层方案,探讨了铺层参数对风力机叶片静态结构性能的影响。以某1.5 MW风力机叶片距叶根1/3段为对象,建立其有限元模型,计算叶片在极限工况下各截面的载荷;分析该叶片铺层所采用的单、双、三轴向布的基本力学性能,得出可行替代方案。通过对不同铺层角度、铺层顺序和铺层比例的代表性铺层方案进行分析对比,初步得出叶片具有良好性能的铺放参数。在此基础上,优化原有设计方案,结果表明改进后叶片的失效因子和变形明显降低,验证了所得结论的正确性。
The performance of wind turbine blades vary with changes of lamination parameters. Influence of lamination parameter on static structure performance of blade was analyzed. The blade of 1.5 MW wind turbine was used as research object, and its finite element model was established. The loads of several sections of blade under ultimate working condition were calculated. Basic mechanical properties of single-axial, dual-axial and tri-axial composite cloth were explored, and feasible alternative scheme was gotten. Through analyzing the strength and stiffness of representative lamination structure of blade with different lay-up angle, lay-up sequence and lay-up thickness, better lamination parameters were obtained. Original lamination design was improved, and the results indicate that the strength factor and strain of blade with optimized lamination structure is reduced obviously. The correctness of conclusion is verified.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2014年第6期1059-1064,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51165028)
内蒙古自然科学基金(2011MS0710)
关键词
铺层参数
结构性能
影响分析
风力机叶片
复合纤维
lamination parameter
structure performance
influence analysis
wind turbine blade
composite
