某型飞机双座弹射轨迹仿真分析  

Simulation analysis of dual-seat ejection trajectory in a type flight

作　　者：王伟[1] 封文春[1] 林贵平[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《中国工程科学》2010年第1期86-90,共5页Strategic Study of CAE

摘　　要：以HTY-8座椅为原型,建立了具有轨迹发散作用的仿真模型,通过仿真,比较分析了发散火箭在不同冲量和不同弹射条件下对弹射轨迹的影响。仿真结果表明,在零速度或速度较低的弹射条件下,采用发散火箭是必要的。在中高速弹射条件下,由于前后座椅弹射具有一定的时间差,X方向轨迹离散,前后座椅弹射轨迹发散,发散火箭的作用并不明显,尚需进一步分析人椅分离后先弹射的座椅的运动轨迹。在不利姿态弹射条件下,横滚时发散火箭作用并不明显,俯冲时则能够起到轨迹发散作用。The simulation mode of ejection seat with track separate rocket based on the HTY-8 seat was presented in this paper. Through simulation, the affection of track separate rocket to the ejection track at the different rocket impulses and various ejection conditions were analyzed. The results showed that the rocket was needed at the condition of zero or lower velocity. However, the function of track separate rocket was inconspicuous at the ejection condition with velocity. The paths of X direction were separated because the front and aft crew member ejection had certain time interval. The front seat movement track after the crewmember and seat separation was needed to analysis in order to research the function of track separate rocket at the condition with velocity. Under the condition of adverse attitude, the function of rocket was unobvious at roll condition; however, rocket could separate the ejection path at pitch condition.

关 键 词：弹射座椅 双座弹射 轨迹发散 弹射仿真 

分 类 号：V244.212[航空宇航科学与技术—飞行器设计]