摘要
目的探讨典型月地返回再入方式对人体加速度响应的影响,为载人深空探测再入加速度安全性评估与防护设计提供依据。方法利用HybridⅢ生物力学假人进行超重离心实验,通过大型载人离心机模拟Apollo10号、嫦娥5号T1试验器返回再入过载环境,采集假人头部、胸部及臀部的加速度动态响应数据,对比分析“联盟”座椅卧姿状态下假人身体不同部位的动力学响应规律。结果假人重要部位的动态响应与再入模式下的过载曲线变化趋势基本一致,各部位合成加速度值较为接近;+Gx为主要过载响应,+Gz加速度响应整体水平较低,头部+Gz峰值相对较高,从头部到臀部+Gz峰值依次减小。结论人体重要部位的动态响应与返回再入过载曲线保持一致,且在头部具有较高+Gz分量。在典型月地返回再入模式下,应加强乘员头部防护。
Objective The effects of typical lunar-earth reentry methods on dynamic response of supine dummy were studied to provide basis for the safety evaluation of reentry acceleration and protection design in deep space exploration.Methods Two typical skipping-reentry environment of lunar-exploration capsule including Apollo 10and CE-5T1were simulated with a large human centrifuge.Three axial acceleration data of HybridⅢdummy was acquired by sensors installed on the head,chest and pelvis.The related dynamic responses of the head,chest and pelvis were analyzed and compared with that of the supine dummy seated in Soyuz spacecraft.Results The dynamic response laws of critical parts of the dummy were in accordance with the output tendency of the centrifuge.The resultant acceleration of diverse parts was approximately close.+Gx was the main acceleration response under the circumstance of typical lunar-earth reentry mode.The overall response level of+Gz was much lower except for the dummy head,which decreased from head to pelvis.Conclusion The dynamic response of critical body parts was consistent with the hyper-gravity curves of reentry,but+Gz of the head was higher than the other parts.The research also revealed that the protection for human head should be enhanced during the typical lunar-earth reentry mission.
作者
王健全
肖艳华
刘炳坤
邓金辉
刘志刚
祝郁
国耀宇
费锦学
马红磊
Wang Jianquan;Xiao Yanhua;Liu Bingkun;Deng Jinhui;Liu Zhigang;Zhu Yu;Guo Yaoyu;Fei Jinxue;Ma Honglei(不详;China Astronaut Research and Training Center,Beijing 100094,China)
出处
《航天医学与医学工程》
CAS
CSCD
北大核心
2020年第6期477-483,共7页
Space Medicine & Medical Engineering
基金
载人航天领域预先研究项目(020101)。
关键词
月地返回
再入加速度
生物力学假人
动态响应
防护
lunar-earth return
reentry acceleration
biomechanical dummy
dynamic response
body protection
