环翼的承载能力和刚度特性研究

Research on Bearing Capacity and Stiffness Characteristics of Annular Wing

环翼是一种封闭的非平面机翼构型。与悬臂结构的常规机翼相比,环翼的承载能力和刚度特性均不同。为了研究对比环翼和常规机翼的承载能力和刚度特性,在不同设计状态下,建立了两者的对比模型及对应的有限元模型。在对应设计状态下,提取各机翼模型的压力分布并施加到有限元模型上,计算得到各机翼模型的最大应力和最大变形量。计算结果表明,与常规机翼相比,环翼具有更高的承载能力和更高的刚度。该研究能够推动环翼在微小型无人机上的设计应用。

Annular wing is a closed non-planar wing configuration.Compared with the conventional wing of cantilever structure,the stiffness and bearing capacity of annular wing are different.In order to research and compare the stiffness and bearing capacity of annular and conventional wings,comparison models and corresponding finite element models are established under different design conditions.Under the corresponding design conditions,pressure distribution of each model is extracted and applied to the finite element model,and the maximum stress and deformation of each model are calculated.The results show that annular wing has higher stiffness and bearing capacity compared with the conventional wing.The research can promote applications of annular wing on UAV.