Except the centralized load impressed from plane other components and airload, the plane gun bay structure is also endured the wallop of the navigate gun launching.

在飞机飞行过程中，炮舱结构除承受飞机其它零部件传递集中载荷和气气动载荷外，还要承受航炮发时冲击力，整个结构始终处不规则振动状态。

In Chapter 3, based upon the blade second-order lifting-line model and rotor free-wake model, an analytical method is developed for predicting the rotor wake structure and BVI airload.

基桨叶二阶力线理论和旋自由尾迹模型，本文在第三章建立了一个适合机旋尾迹结构及桨-涡干扰气动特性分析方法和模型。