卧姿半弹道式再入过载假人动态响应研究

Study on Response of Dummy in Supine Position under Semi-Ballistic Reentry Overload

摘要: 为了探索卧姿半弹道式再入时的人体动态响应，通过载人离心机模拟飞船半弹道式返回再入大气层过载曲线，对比分析卧姿状态下HybridIII生物力学假人头部、胸部及腰部的动力学响应。结果显示假人各部位胸–背向响应占优势。头部、胸部、腰部沿胸–背向的加速度由低到高，增长幅度较小；而沿头–盆向是由高到低，差异性明显，头部最高，胸部和腰部加速度较为接近。该实验研究为载人深空探测工程实践提供了数据基础，为载入加速度耐限制定及安全防护设计提供指导。

Abstract: To explore the dynamic response of human body in supine position under semi-ballistic reentry, simulating acceleration loading of typical enter by manned centrifuge, the dynamic responses of dummy head, chest and lumbar were obtained and analyzed. The Gx response of each part of the dummy was dominant. The acceleration of the head, chest and lumbar along Gx is from low to high, and the increase range is small; while the acceleration along Gz is from high to low, the difference is obvious, the head is the highest, and the acceleration of chest and waist is relatively close. This pa-per provides an experiment basis for the designing on the enter strategies of spacecraft. Based on this result, the designer could choose the optical strategies, to avoid injury.