摘要
水上迫降是指飞机在应急条件下在水面着陆的行为。选取某型固定翼飞机开展水上迫降仿真研究,分析了水上迫降载荷和运动受下沉速度和初始姿态的影响。结果表明,下沉速度越大,垂向加速度峰值越大,加速度和浸水深度最大值产生的时间越短;垂向加速度随着姿态角的增大而减小,纵向加速度受姿态角影响较小,压力分布受姿态角影响较大。
Ditching refers to the behavior of the aircraft landing on the water under emergency conditions.A certain type of fixed-wing aircraft is selected to carry out a ditching simulation,and the effects of the ditching load and motion on the sinking speed and initial attitude are analyzed.The results show that the greater the sinking speed,the greater the peak value of vertical acceleration,and the shorter the time for the acceleration and the maximum value of the immersion depth;the vertical acceleration decreases with the increase of the attitude angle,and the longitudinal acceleration is less affected by the attitude angle.The pressure distribution is greatly affected by the attitude angle.
作者
孙丰
吴彬
何超
王明振
SUN Feng;WU Bin;HE Chao;WANG Ming-zhen(Special Vehicle Research Institute,AVIC,Jingmen 448035,China;Key Aviation Scientific and Technological Laboratory of High speed Hydrodynamic,Jingmen 448035,China)
出处
《航空计算技术》
2020年第6期9-12,共4页
Aeronautical Computing Technique
基金
民用飞机专项研究项目资助(MJ-2015-F-028)
航空科学基金项目资助(2016ZA05002)。
关键词
固定翼飞机
水上迫降
着水载荷
浸水深度
姿态角
fixed-wing aircraft
forced landing on water
landing load
immersion depth
attitude angle
