大展弦比飞机阵风降载策略与载荷测试分析

The Gust Load Alleviation Design and Flight Tests for an Aircraft with Large Aspect Ratio

大展弦比飞机具有翼载小、柔性大的特点,阵风情况往往会引起飞机的严重受载。文中针对大展弦比飞机,采用理论分析的手段,设计了阵风减缓控制方法,提出了降载策略,并经过了飞行试验的验证。结果表明,提出的阵风降载策略较好地实现了降载、姿态控制的权限分配,降载效果较好,可以支撑类似构型飞机的阵风载荷减缓设计。

For the aircraft with large aspect ratio,the main features include light weight,lowload of the wing and large flexibility. The added overload induced by the gust is very serious,even more than the maneuvering overload to become the serious load situation. Based on theoretical modeling and simulation of the gust load and the flight load,the scheme of gust alleviation is designed and the flight tests are performed to validate the effectiveness of the scheme. The results showed that the loads of the wing are reduced obviously using the scheme of gust alleviation.