用影响因子评估弹射座椅多模态控制输入参数  

Evaluation of Input Parameters of Ejection Seat Multi-Mode Control Using Impact Factor

作　　者：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,北京100083

出　　处：《飞行力学》2007年第1期71-75,共5页Flight Dynamics

基　　金：航空基础科学基金资助项目(3E51048)

摘　　要：为提供弹射座椅多模态控制输入参数选择的理论依据,通过计算机仿真,比较分析了俯仰角、滚转角、滚转角速度、下沉率、迎角、侧滑角等弹射启动时飞机状态参数对弹射轨迹(垂直方向)和安全救生高度的影响。参考评估期刊的影响因子,提出了安全高度影响因子法,并计算出在同等弹射条件下(速度和高度)各参数的平均影响因子,得出各参数对救生高度的影响程度及变化规律,确定了俯仰角、滚转角和下沉率是影响救生高度的三个主要参数。In order to present an academic reference of selection of input parameter of multi-mode attitude control, a computer simulation was carried out. Through the computer simulation, analyzing the effects of pitch angle, roll angle, roll angle rate, sink rate, angle of attack and side angle on the track of ejection （ vertical direction） and save life height. Consult with impact factor of magazine, the method of save height impact factor was put forward. The average impact factor of each parameter under the same ejection condition （ same velocity and height） was presented. The extent of impact to save life height and change rule of each parameter was obtained and determined the dive angle, roll angle and sink rate were primary impact parameters to save life height.

关 键 词：弹射座椅 多模态控制 低空不利姿态 影响因子法 安全救生高度 弹射轨迹 

分 类 号：V244.2[航空宇航科学与技术—飞行器设计]