+Gy作用对人体的影响

Effects of +Gy Stress on Human Body

本文报道了5名被试者在半径12m的人体离心机上承受+Gy超重作用时,心率、呼吸频率、脑电,跟踪误差,控制能力,手控操作动态反应特性各生理指标和工效参数的变化。结果表明,侧向超重对人体的心理生理状态,手控操作动作和工作效率有明显影响。

Five young male subjects (aged from 18 to 23 ) were exposed to +Gy stress on a human centrifuge of 12 meter radius. A conventional ejection seat (back angle=15°) was mounted in the gondola. A 2-axes compensatory tracking system was used, which comprises a random disturbance generator and a LED array display placed 70 cm in front of the subject. A specially designed sidearm controller was mounted on the right side of the arm rest with which the subject can correct the random disturbance through certain simulated functions and control the light spot to the center of the screen. The G stress was +Gy of trapezoidal profile having plateau levels of +1 Gy, +2 Gy and +3 Gy with duration of 120s. Changes of some physiological parameters such as heart rate, respiratory rate, and EEG, changes of some physical parameters such as tracking errors and tracking dynamic parameters (mean gain, effective delay time and frequency of tracking motion) were observed during the experiments. Results showed that influence of +Gy stress on human physiological function and working performance was significant.