风力机叶片结构强度复合材料力学分析方法研究

发布时间：2018-02-20 22:04

本文关键词： 风力机叶片结构模型复合材料力学结构强度理论分析　出处：《玻璃钢/复合材料》2017年05期 　论文类型：期刊论文

【摘要】：截面结构强度分析校核方法是风力机叶片设计优化的关键问题。针对现有的叶片工程力学计算方法精度不高、有限元分析方法计算开销较大的问题,在研究风力机复合材料叶片结构设计模型的基础上,基于复合材料力学理论,推导出计算叶片截面周向各处拉伸和剪切应变的计算公式;在叶片生命周期内的极限载荷下,对某1.5 MW叶片进行了结构强度计算和分析,通过与该叶片在当量极限载荷下的测试结果对比,验证了所述方法的有效性。
[Abstract]:The strength analysis and checking method of cross-section structure is the key problem in the design optimization of wind turbine blade, aiming at the problem that the accuracy of the existing blade engineering mechanics calculation method is not high, and the calculation cost of finite element analysis method is high. On the basis of studying the structural design model of composite blade of wind turbine, and based on the theory of composite material mechanics, the formulas for calculating the tensile and shear strain of blade section in circumferential direction are derived. The structural strength of a 1.5 MW blade is calculated and analyzed. The effectiveness of the proposed method is verified by comparing with the test results of the blade under the equivalent limit load.
【作者单位】：中原工学院机电学院;
【基金】：河南省高等学校重点科研项目(16A460041) 河南省高等学校现代制造装备与仪器重点学科开放实验室开发课题(2016MEI004)
【分类号】：TB33;TK83

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