基于飞行参数的飞行载荷识别模型研究

Flight Load Identification Model Based on Flight Parameters

为了研究飞行载荷与飞行参数之间的相关关系,实现间接获取飞机关键结构部件的载荷,建立了可表征物理意义的飞机部件飞行载荷识别模型。该模型利用部件载荷相加等于总载荷的叠加原理,引入一些简化原理获得飞机结构部件载荷方程,将飞机运动微分方程和载荷方程联立,得到飞行载荷识别模型。通过分析某型飞机对称机动动作下的平尾载荷识别结果,该载荷模型能准确地预测部件载荷。

In order to study the correlation between flight load and flight parameters, and to obtain the load of the key components of the aircraft indirectly, a flight load identification model which can characterize the physical significance is established. By the principle of superposition that the sum of component load equal to the total load, some simplified principles are brought in to obtain the load equation of aircraft structural components.The flight load identification model is obtained by combining the differential equation of the plane motion with the load equation. By analyzing the load identification results of a plane under symmetrical maneuver, the load model can accurately predict component load.