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由于民用飞机机翼具有大展弦比的特点,因此阵风载荷经常成为民用飞机飞行载荷的严重情况,是各国适航标准重点考察的飞行情况。而且,阵风干扰还会因飞机机体的自身弹性引起结构弹性振动,使飞机结构刚度降低,造成机体疲劳损伤,甚至引起颤振。因此,在民用飞机载荷设计过程中对阵风载荷及其减缓技术进行研究具有非常重要的意义。介绍了民用飞机阵风载荷的原理及相关技术,以及阵风载荷减缓技术中用直接升力控制方法来实现机翼的阵风载荷减缓。
Due to the large aspect ratio of civil aircraft wings, the gust load is often a serious flight load for civilian aircraft and is the focus of missions on airworthiness standards in various countries. Moreover, the gust interference will also cause the structure to vibrate due to the elasticity of the aircraft body, resulting in the decrease of the rigidity of the aircraft structure, resulting in the fatigue damage of the body and even chattering. Therefore, it is very important to study the gust load and its mitigation technology in the design of civil aircraft loads. The principle and related technology of gust load of civil aircraft and the method of direct lift control in gust load mitigation are introduced to realize the gust load reduction of wing.