航空发动机复合材料叶片用3D机织预制体研究进展

三维机织复合材料（3DWCs）因其高比强度、低密度、低热膨胀系数和良好的成型性等优点受到越来越多的青睐，已经成功运用到飞机和汽车工程等领域。随着航空发动机研发力度的加大，3DWCs也在飞机发动机零部件上有所应用。综述了航空发动机复合材料叶片用三维机织预制体（3DWPs）的研究进展及现状；对比了异形高厚度3DWPs的几种织造方法；基于试验测试和仿真模拟，介绍了国内外3DWPs变形性能的研究进展；分析了3DWPs结构对其复合材料性能的影响；最后，展望了3DWPs的发展方向，为航空发动机复合材料叶片的发展提供了参考依据。

Review of 3D woven preforms for the composite blades of aero engine

The composites made from 3D woven preforms(3DWCs) have attracted far more attentions due to their very high specific-strength, low density, low thermal expansion and excellent formability, which have been successfully employed in aircraft and automobile engineering. With the research and development of aero engine are increasing, 3DWCs have also been applied to engine parts. The current research progress and current situation of 3D woven preforms(3DWPs)for the composite blades of aero engine were summarized; A contrastive analysis of several weaving methods of special-shaped high thickness 3DWPs was carried out; The research progress of deformation performance of 3DWPs was recommended based on experimentation and simulation; The effect of 3DWPs structure on the properties of the composites was also introduced; Furthermore, the challenges and outlook of the 3DWPs were outlined, thus it provided some reference gist for the deeper research on the development of composite blades of aero engine.