Coupling bionic design and application of flow curved surface for carbon fiber composite fan blade
Coupling bionic design and application of flow curved surface for carbon fiber composite fan blade
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DOI：
10.1016/j.jmrt.2023.09.312
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发表时间：
2023-10
期刊：
影响因子：
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通讯作者：
Mingdi Shi;Qigang Han;Xu Liu;Xianhe Cheng;Zhiwu Han
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文献类型：
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作者：
Mingdi Shi;Qigang Han;Xu Liu;Xianhe Cheng;Zhiwu Han
碳纤维复合材料风扇叶片因其密度小、强度高而逐渐应用于航空航天领域。然而，传统的循环流化床锅炉的弯曲性能通常是有限的，由于离心和气动弯曲应力。设计了一种仿生梯度双扭结构，该结构由不同模量的碳纤维预浸料梯度结构（灵感来自于Metopograpsus frontalis螯肢尖端）和双扭结构（灵感来自于腔棘鱼鳞片）叠加而成。此外，还对不同结构和材料的层合板进行了弯曲性能测试，并采用三维Hashin破坏准则进行了模拟分析。实验和模拟结果表明，仿生梯度双扭结构层合板（BGDTSL）具有最佳的弯曲性能（峰值弯曲力1125.12 N）。通过三维扫描试验验证了CFCFB具有良好的成型精度（成型精度小于0.56 mm）。其中，BGDTS-CFCFB的尖端、中部和根部峰值弯曲力分别为7022 N、3327 N和5184 N，与传统结构的T800制备的CFCFB（TS-CFCFB@T800）相比分别提高了9.27%、4.59%和14.31%。本文的研究工作为设计和制造更适合航空工程应用的结构精巧的CFCFBs提供了一条有前景的途径。
Carbon fiber composite fan blade (CFCFB) is gradually applied to aerospace because it possesses less density and high strength than metal materials. However, the flexural property of conventional CFCFB is generally limited due to centrifugal and aerodynamic flexural stresses. Herein, a bionic gradient double-twisted structure (BGDTS), which was composed of different modulus carbon fiber prepreg gradient structure (inspired by metopograpsus frontalis cheliped tip) and double-twisted (inspired by coelacanth scale) layup structure was designed. Besides, the flexural properties of laminates with different structures and materials were tested, and the 3D Hashin failure criterion was used for simulation analysis. The experimental and simulation results showed that bionic gradient double-twisted structure laminate (BGDTSL) had the best flexural performance (peak flexural force 1125.12 N). Then, the excellent moulding accuracy of CFCFB was verified by the three-dimensional scanning test (moulding accuracy less than 0.56 mm). Among, the tip, middle, and root peak flexural force of the BGDTS-CFCFB were 7022 N, 3327 N, and 5184 N, which increased by 9.27%, 4.59%, and 14.31% compared with traditional structure CFCFB prepared by T800 (TS-CFCFB@T800). The researches in this work offer a prospective way to effectually devise and manufacture exquisitely structured CFCFBs that are more suitable for aeronautical engineering.