某型歼击机座舱盖“零零”抛放轨迹计算研究  

Computation and research of the "zero-zero" jettison trajectories of the aircraft canopy

作　　者：龚洁[1] 杨春信[1] 杨新明[2] 徐晓东[2] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083 [2]空军第一研究所,北京100076

出　　处：《北京航空航天大学学报》2004年第3期258-262,共5页Journal of Beijing University of Aeronautics and Astronautics

摘　　要：建立了某型歼击机座舱盖“零 零”抛放过程的运动模型 ,得到了座舱盖抛放过程的空间运动轨迹和最佳抛放角 ,计算结果与试验测量结果相符 .同时还研究了抛盖动作筒的进气规律 ,得到了抛盖动作筒下腔的进气流量及压力随时间的变化曲线 。The motion model of zero-zero jettison of aircraft canopy was developed to get the trajectories of the jettisoned canopy and the perfect jettison angle, and the agreement between model prediction and experimental measurement result was satisfactory. The rule of the air input of the underside cavity was also discussed in order to get the pressure curve. The result of all the research can be used to predict the trajectories of aircraft canopy in the zero-zero jettison.

关 键 词：座舱盖 抛放 轨迹 

分 类 号：V244.211[航空宇航科学与技术—飞行器设计]