飞机机翼结构质量分配方法研究

Study of the Mass Estimation and Prediction Method for Aircraft Wing Parts

提出了一种机翼结构质量分配方法 ,能根据飞机总体设计参数 ,把机翼结构质量分配到承弯结构、承剪结构、分布气动载荷所需结构、起落架安装影响结构、外挂物安装影响结构、油箱安装影响结构、前缘结构、后缘结构、襟翼结构、副翼结构、机翼机身接头及其他杂项元件结构 ,共分为 12个功能结构部分。首先建立了飞机总体设计阶段机翼结构质量分配的分析模型 ;然后根据现有飞机机翼的质量和飞机总体几何参数 ,用参数优化方法确定了该分析模型中的结构修正系数 ;从而得到一个机翼结构质量分配模型。用 8架飞机的机翼所完成的算例证明了该方法的有效性和合理性。

A method for mass estimation and prediction of aircraft wing parts is presented.The model and software for fighter is developed. The wing is devided into 12 functional parts,such as structure for bending moment, for shear force, for air load distribution, for landing gear mounts, for external hanging, for fuel tank mounts,for leading edge , for trailing edge, for flap, for aileron, for wing-body joints and for the other parts of the wing.First,established is the wing mass estimation model.Then,the correct factors in the model are based on present data of fighter wings determined. The example completed with 8 fighter wings in this paper shows the validity and rationality of this method.