舰载机逃逸复飞安全性分析

Analysis on Carrier based Aircraft Bolting and Waveoff Safety

舰载机着舰是整个飞行过程中最危险、最复杂的飞行阶段。一旦挂锁不成功,舰载机就要面临着逃逸复飞。舰载机的逃逸需要考虑舰艏扰流、航母运动、起落架特性等影响。建立了舰载机相对于斜甲板的运动方程,考虑舰面运动、舰艏扰流、起落架影响等因素,分析了不同扰流速度、纵摇频率、垂荡幅度对舰载机逃逸迎角、逃逸航迹和爬升率的影响。研究结果表明:舰艏扰流会使舰载机迎角增加上升速度加快。纵摇和垂荡对舰载机逃逸安全影响较大,为了保证舰载机逃逸的安全,应尽量选择在航母运动幅度小,周期长,并且处于舰艏上升阶段实施。

Deck landing is the most dangerous and complicated part of flight for a carrier based aircraft.Once the hook is not successful arrestted,the carrier based aircraft will face bolting and waveoff.The effects of bow turbulence,carrier motion and landing gear characteristics should be considered in the bolting of carrier based aircraft.The motion equation of the carrier based aircraft relative to the inclined deck is established.Considering the deck motion,bow turbulence,landing gear and other factors,the effects of different turbulence velocity,longitudinal frequency and heave amplitude on the aircraft angle of attack,flight track and climb rate of the carrier based aircraft are analyzed.The results show that the bow turbulence will increase the angle of attack and speed up the ascent of the aircraft.Longitudinal and vertical velocity have a great impact on the bolting safety of carrier based aircraft.In order to ensure the bolting safety,it should be implemented in the stage of small deck motion,long period and rising of the bow as far as possible.