目的从生物力学角度探讨操纵杆位置对于机动飞行时操控工效的影响。方法建立完整的人-椅系统有限元模型,该模型包括多体动力学假人、弹射座椅、约束系统以及惯性锁强制机构。对模型施加不同方向的加速度载荷,从生物力学的角度对比研究不同位置的操纵杆以及不同大小的椅背角对飞行员操控工效的影响。结果相比于中央操纵杆加17°椅背角,侧位操纵杆加30°椅背角能使得飞行员在加速度场中产生较小的躯干位移以及较小的手部惯性力。结论在机动飞行过程中,侧位操纵杆和较小的椅背角均有利于飞行员获得较好的操控工效,从而减小安全隐患。
Objective To explore the biomechanical effect of the position of stick controller on the performance of pilot during flight maneuver. Methods A finite element( FE) model including multi-body dummy,ejection seat,restraint harness and inertia reel was developed. The effect of position of control stick and seat back angle on operation efficiency under accelerative loading were compared and evaluated. Results Compared with the center-stick and seat with back angle of 17°,the side-stick and seat back angel of 30° induced less displacement of trunk and less inertia force of hand in the environment of acceleration. Conclusion During flight maneuver,the side-stick position and less seat back angle is helpful to obtain better operation efficiency,which benefit the safety of pilots.