对称机动飞行时飞行员人体动态体表压力分布研究

Research on Dynamic Pressure Distribution of Pilot Body in Symmetric Maneuver Flight

论述了飞行员人体动态体表压力分布对于飞行过载动感仿真的重要性。给出坐姿人体体表压力模式及其等效压力分析方法。在对称机动飞行情形下,建立了飞行员人体动力学方程,该方程考虑了歼击机飞行员实际坐姿。导出了动态体表压力公式,动态体表压力与飞行员人体加速度之间的惯性传递矩阵。给出与动态体表压力相关的歼击机飞行员人体参数计算方法。以某飞机眼镜蛇机动为例,通过数值求解,得到该机动飞行时飞行员人体动态体表压力分布。研究结果可用于指导过载椅设计。

Importance of dynamic pressure distribution of pilot body to flight motion simulation of g-cueing was discussed. Pressure distribution modes of sitting body and equivalent pressure method were given. In symmetric maneuver flight, dynamic equations of pilot body were established, and actual sitting posture of fighter pilot was considered. Then, expressions of dynamic pressure and inertia transfer matrix between dynamic pressure and acceleration of pilot body were derived from them. Calculation method for body parameters of fighter pilot related to dynamic body pressure was given; Finally, an example about Cobra maneuver of a certain fighter was given and the dynamic pressure distribution of pilot body at time of this maneuver was calculated numerically. The conclusion can be used in design of G-seat .