摘要
为了模拟失重状态,航天技术发达的国家都建立了用于航天员出舱活动训练的中性浮力水槽。但与太空失重环境相比,水中存在的水动阻力会导致两种环境下人体运动反馈的差异性。基于ADAMS多体动力学仿真软件,按照"飞天"舱外航天服的质量分布,建立了着舱外服人体动力学模型。利用此模型仿真比较了水下和失重环境中肘关节屈伸、肩内收外展、肩矢状面内运动时人体躯干的动力学反馈,发现水下环境中模型躯干的转动速度峰值和平均值均较大。研究结果已应用于神舟七号载人飞行任务出舱活动航天员训练,建立的航天员人体动力学模型可应用于我国未来空间站任务出舱活动仿真分析。
For weightless simulation, America, Russia and China had made neutral buoyancy flumes to be used in astronauts EVA （Extra Vehicular Activity）training. But there are differences in dynamics feedback between underwater and weightless because of hydrodynamic resistance in water. ＂Feitian＂ EVA suited human model was developed using the multi-body dynamics software ADAMS. Based on the model, some free motions were simulated comparatively between underwater and weightless. The research results had been used in the Shenzhou 7 mission astronauts EVA training, and may be used in EVA simulation analysis of the space station mission in the future.
出处
《载人航天》
CSCD
2014年第6期517-519,527,共4页
Manned Spaceflight
基金
中国载人航天工程出舱项目资助
