摘要
出于减重和效率提升等目的,纤维增强复合材料在直升机结构上的用量日益增加。阐述了直升机结构设计特点与高性能复合材料应用的最佳比配性,介绍了国外直升机复合材料典型应用案例与发展趋势,总结了国内直升机复合材料应用现状与国外差距,展望了高性能复合材料未来技术需求。研究表明,国内直升机复合材料应用对比欧美国家存在技术代差;高性能结构复合材料、先进功能复合材料、结构功能一体化复合材料、低成本复合材料整体成型及复合材料高置信度虚拟认证技术是未来发展重点。
Fiber-reinforced composite materials are increasingly used in the rotorcraft structures to reduce weight and improve efficiency. The rotorcraft industry is constantly in need of higher-performance materials that offer improved mechanical strength and stiffness at a lower weight. This work introduces the composite materials typical application cases and development trends of foreign rotorcraft structures and summarizes the state-of-the-art of civil rotorcraft composite structures, also presents the future technical requirements of higher-performance composites. The overview shows that there exist technical gaps for rotorcraft composite applications between the civil and western. The conclusion shows that higher-performance structural composites, advanced functional composites, structural and functional integrated composite materials, low-cost composite integrated technologies and high-confidence virtual validation technologies of composites will be the future focus.
引文
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