摘要
目的:研究在+Gx和+Gz复合着陆冲击作用下,人体头部动力学响应的一般特点。方法:采用HybridⅢ型假人,在航天返回舱座椅环境中,进行不同量级的复合冲击实验。结果:实验数据呈现出良好的一致性,随输入加速度的增加,头部合成加速度峰值逐渐升高,但趋势变缓,合成加速度增益逐渐降低,另外,胸背向和头盆向上的增长趋势不同;在高G值时,假人头部、胸部的合成加速度峰值和增益均呈现良好的响应变化规律。结论:采用Hybrid Ⅲ型假人进行+Gx和+Gz复合着陆冲击的研究实验和分析方法,得到了不同冲击强度下的响应变化规律。
AIM: To Study the characteristics of head dynamics response by + Gx & + Gz acceleration landing impact. METHOD: Using HybridⅢ dummy and putting in the backing cabin of space, experiments on landing impact of all leveb were carried out. RESULT: (1) Experimental data showed consistency. (2) Peak values of synthesized acceleration of head increased with input accelerations, but the grads of them were reduced, the plus of them was reduced; and the increase directions of + Gx & + Gz were different. (3) In the high G conditions, the peak values and the plus of synthesized response acceleration of head and chest of dummy showed good orderliness. CONCLUSION: The studies using Hybrid Ⅲ dummy on the characteristics of head dynamics response by + Gx & + Gz acceleration landing impact were feasible, and the regular pattern of acceleration plus and peak value of dynamic response in diversified G impact conditions was attained.
出处
《中国临床康复》
CSCD
2003年第2期197-197,215,共2页
Chinese Journal of Clinical Rehabilitation
