人体对模拟着陆冲击动态响应特性研究

为了探讨飞船返回着陆时不同强度不同姿态冲击下人体动态响应特性，５名健康男青年，以仰卧２０°承受４～１０ｇ，５０～８０ｍｓ；仰卧３０°～６０°，１０ｇ，５０ｍｓ，半正弦脉冲的着陆冲击。分别记录冲击塔平台，座椅及人体头、肩、胸和髂处的Ｚ和Ｘ向加速度及被试者心电图。经分析计算，给出了人体动态响应与冲击强度以及它与仰卧角的关系式。为进一步研究人体冲击损伤的防护和人体冲击动态响应的建模提供了依据。

STUDY ON CHARACTERISTICS OF HUMAN BODY DYNAMIC RESPONSES TO SIMULATED LANDING IMPACT

In order to study the characteristics of human body dynamic responses to impact acceleration during manned spacecraft landing, 5 healthy young men were exposed to 4～10 g for 50～80ms halfsine acceleration pulse in 20° supine angle and 10 g for 50ms halfsine acceleration pulse in 30°～60° supine angle. The acceleration curves on the impact tower,the seat,the human head,shoulder,chest and ilium, as well as ECG of the subject were recorded during the impact experiment. The relation between human body dynamic response and level of the landing impact and relation between it and supine angle were obtained by regression analysis.These experimental results provide scientific basis for the protection of human body from impact injuries and the construction of human body dynamic models.