Effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades

LI Qiuran; ZHANG Yanyan; YUAN Jiancheng; HAN Yinuo

Chinese

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Effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades

更新时间：2026-07-28

- Effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades
- Advances in Aeronautical Science and Engineering Pages: 1-7(2026)
- 作者机构：
  
  中国民用航空飞行学院航空工程学院，广汉 618307
- 作者简介：
- 基金信息：
- DOI：
  CLC： V25;TB391
- Received：10 March 2026，
  
  Revised：2026-06-29，
  
  Online First：28 July 2026，
- 稿件说明：
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李秋燃,张艳艳,袁建成,等. 结构取向角对仿生复合材料旋翼桨叶弹性性能的影响[J]. 航空工程进展.

LI Qiuran,ZHANG Yanyan,YUAN Jiancheng, et al. Effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades[J]. Advances in Aeronautical Science and Engineering.(in Chinese)
李秋燃,张艳艳,袁建成,等. 结构取向角对仿生复合材料旋翼桨叶弹性性能的影响[J]. 航空工程进展. DOI：

LI Qiuran,ZHANG Yanyan,YUAN Jiancheng, et al. Effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades[J]. Advances in Aeronautical Science and Engineering.(in Chinese) DOI：

摘要

直升机旋翼桨叶的结构刚度对旋翼系统飞行性能与稳定性具有重要影响。为了研究结构取向角对仿生复合材料旋翼桨叶弹性性能的影响，借鉴昆虫角质层结构再取向特征，建立基于结构取向角的仿生复合材料旋翼桨叶有限元模型；基于复合材料力学理论，建立不同结构取向角下材料的等效杨氏模量预测模型；利用ABAQUS对桨叶在不同结构取向角下的力学响应进行数值分析，通过提取应力、应变数据计算桨叶等效杨氏模量。结果表明：有限元计算结果与理论预测值误差均小于20%，模型具有较好的可靠性；随着结构取向角增大，复合材料桨叶等效杨氏模量整体呈下降趋势，结构取向角对桨叶等效杨氏模量及刚度具有显著影响。

Abstract

The structural stiffness of helicopter rotor blades plays a critical role in the flight performance and stability of rotor systems. To investigate the effect of structural orientation angle on the elastic properties of biomimetic composite rotor blades， a finite element model incorporating structural orientation was developed， inspired by the reorientation characteristics of insect cuticle. Based on composite mechanics theory， a predictive relationship for the equivalent Young's modulus under different orientation conditions was derived. Numerical simulations were carried out in ABAQUS to evaluate the mechanical responses of the blades at various structural orientation angles， and the equivalent Young's modulus was determined from the extracted stress-strain data. The results indicate that the discrepancy between finite element predictions and theoretical values is within 20%， demonstrating good model reliability. Furthermore， the equivalent Young's modulus of the composite rotor blade decreases with increasing structural orientation angle， indicating that the orientation angle has a significant influence on both the equivalent Young's modulus and structural stiffness.

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references

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