单通道客机的后机身设计

Aft Fuselage Design of the Single-Aisle Aircraft

作为一种典型的单通道喷气客机,CC-200具有大展弦比、小后掠角、相对较低的巡航速度等技术特点,其后机身长度为6.458m,上掠角为12°,与地面水平线的最小间隙值为0.15m。本文采用ESDU 80006和ESDU 70011中的方法计算了该机后机身的阻力增量,并分析了后机身的结构布置及应力分布。

As a single-aisle airplane, CC-200 has bigger wing aspect ratio, smaller swept angle and lower cruising speed, etc. The aft fuselage length of CC-200 is 6.458m with upsweep angle 12°and tail down clearance 0.15m. The drag increment of aft fuselage was calculated using the methods in ESDU 80006 and ESDU 70011.Moreover, the stress distribution of the aft fuselage structure was analyzed.