基于高温合金的高速飞行器折叠舵结构设计与研究

Design and Research of High-Speed Aircraft Folding Rudder Structure Based on High-Temperature Alloy

为应对高速飞行器折叠舵在高热流大载荷复杂飞行环境中,长时间承受严酷的气动热、气动载荷耦合作用,以及总体指标对折叠舵轻质化、小型化和高可靠性的强约束和发展需求,本文提出了基于高性能高温合金材料、采用轴向及法向双重锁紧机构的折叠舵结构设计方案,提高了承载能力、整体刚度、锁紧可靠性,减小了展开到位动载荷,利于机构小型化。重点解决了常规折叠翼/舵结构设计中仅有法向锁紧机构单独作为分体结构连接件,无法应对承载溢出的问题,并结合有限元三维传热及承载性能仿真分析,验证了设计的可行性和合理性。研究为高速飞行器折叠翼/舵结构设计技术提供了新的参考,探索了新的道路。

In order to cope with the severe coupling effects of aerodynamic heat and aerodynamic load for a long time in the complex flight environment of high heat flow and large load for the folding rudder of high-speed aircraft,as well as the strong constraints and development needs of lightweight,miniaturization and high reliability of overall design,this paper presents a structural design scheme of folding rudder based on high-performance alloy material and adopting axial and normal double locking mechanism,which improves the bearing capacity,overall stiffness and locking reliability,reduces the dynamic load in place,and is conductive to the miniaturization of the mechanism.It mainly solves the problem that only the normal locking mechanism as the separate structure connector can not deal with the load overflow in the conventional folding wing/rudder structure design.Combined with the finite element three-dimensional heat transfer and bearing performance simulation analysis,the feasibility and rationality of the design are veri-fied.The research provides a new reference and explores a new way for the structural design technology of folding wing/rudder of high-speed aircraft.