摘要
由于舰载飞机着舰前处于跟踪雷达的盲区 ,此时导引系统关闭 ,为了使飞机的姿态及轨迹角在舰尾气流扰动下力求不变 ,以达到安全着舰的目的 ,提出了飞机中性稳定的新型着舰模态。其实现途径是利用后缘襟翼对称偏转所产生的直接力 ,对迎角小扰动变化进行气动解耦 ,从而构成中性稳定舰载飞机 ,使飞机动力学的特征模态由振荡型转变为非周期型。仿真结果表明 ,该模态可有效地抑制气流扰动 ,提高着舰的安全性。
In this paper, a new carrier landing mode with neutral stability using direct lift control is proposed. This mode is used to keep the attitude and path angle constant when the airplane is in the blind area of the radar track and the guidance signal is shut off. The mode is achieved with the symmetric deflection of flaps and aerodynamic decoupling of the change with the angle of attack caused by small disturbances. The characteristic model of the aircraft is changed from a short-period oscillation model into a non-periodic model,which effectively improve the performance indices of restrainning air wake disturbances.
出处
《飞行力学》
CSCD
2002年第4期22-26,共5页
Flight Dynamics
关键词
着舰
舰载飞机
气流扰动
carrier-based aircraft
neutral stability
airflow disturbance
direct lift control
