基于仿生结构的复合材料风电叶片损伤分析

寿昊楠; 缪维跑; 范士杰; 许子非; 李春; 岳敏楠

doi:10.19912/j.0254-0096.tynxb.2025-0249

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太阳能学报 ›› 2026, Vol. 47 ›› Issue (6) : 438-447. DOI: 10.19912/j.0254-0096.tynxb.2025-0249

基于仿生结构的复合材料风电叶片损伤分析

寿昊楠¹, 缪维跑^1,2, 范士杰¹, 许子非^1,3, 李春^1,2, 岳敏楠^1,2

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DAMAGE ANALYSIS OF COMPOSITE WIND TURBINE BLADE BASED ON BIONIC STRUCTURE

Shou Haonan¹, Miao Weipao^1,2, Fan Shijie¹, Xu Zifei^1,3, Li Chun^1,2, Yue Minnan^1,2

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摘要

大型风力机为控制重量使得结构刚度不可避免地降低,导致复合材料叶片在大尺度形变下易出现尾缘结构损伤问题。为此,该文将内肋结构应用于风电叶片以探究其在提高抗屈曲损伤方面的特性。针对3种偏航角下极端风速的极限载荷状态,通过显式动力学方法开展结构损伤响应分析。结果表明：叶片尾缘损伤的形成主要为屈曲驱动过程,仅施加在特定角度的弯矩荷载才会导致明显的尾缘屈曲;仿生叶片由于其内肋支撑作用,损伤区域集中在过渡段发展,可有效抑制损伤向叶根段进一步扩展;当叶片受拉伸载荷控制时,损伤集中于过渡段尾缘区域;受压缩载荷控制时,损伤沿主梁横向发展;不同铺层角度复合材料层抗屈曲性能不同,损伤差异较大。

Abstract

To reduce the weight of large wind turbines, structural stiffness is often compromised, leading to local buckling instability and trailing edge structural damage in composite blades under large-scale deformation. To address this issue, this paper introduces an inner rib structure for wind turbine blades to examine its effectiveness in improving resistance to buckling-induced damage. Structural damage response analysis was conducted using the explicit dynamic method under ultimate load conditions at extreme wind speeds and three yaw angles. The results indicate that trailing edge damage in blades is primarily a buckling-driven process, with significant trailing edge buckling occurring only when bending moment loads are applied at specific angles. The support provided by the inner rib in bionic blades localises damage to the transition section, effectively preventing its progression to the blade root section. Under tensile loads, damage concentrates in the trailing edge of the transition section, whereas under compressive loads, damage propagates laterally along the main beam. The buckling resistance of composite layers varies with ply angles, resulting in distinct damage patterns.

导出引用

寿昊楠, 缪维跑, 范士杰, 许子非, 李春, 岳敏楠. 基于仿生结构的复合材料风电叶片损伤分析[J]. 太阳能学报. 2026, 47(6): 438-447 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0249

Shou Haonan, Miao Weipao, Fan Shijie, Xu Zifei, Li Chun, Yue Minnan. DAMAGE ANALYSIS OF COMPOSITE WIND TURBINE BLADE BASED ON BIONIC STRUCTURE[J]. Acta Energiae Solaris Sinica. 2026, 47(6): 438-447 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0249

中图分类号： TK83

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