摘要
为了验证限制层材料对航天服活动关节结构力学特性的影响,通过分析典型限制层材料的应用与发展趋势,基于航天服关节活动性对限制层材料的设计需求,选取聚酰胺纤维与聚芳酯纤维,采用相同的织造工艺,实现限制层织物的制备。通过织物力学性能对比测试与典型航天服活动关节结构活动性对比测试,研究两种材料作为限制层对航天服活动性能的影响。结果表明:聚芳酯材料的高强低伸长能力能够为航天服活动关节的限制层结构承压与工效保障提供更优的性能;其高模量特性能够在航天服活动关节周期性加压工作状态下提供抗蠕变能力,为航天服活动关节提供寿命期内的尺寸稳定性;聚芳酯材料的高刚性能够降低织物的厚度,改善航天服典型关节活动的迟滞特性,降低关节活动力,但也影响了关节活动过程的平顺性;该研究对航天服活动关节限制层的设计与材料选用具有参考意义。
In order to validate the effects of restraint layer material on mechanical properties of spacesuit joints,application and development trend of typical restraint layer materials were studied.Based on the design requirement of restraint layer material for spacesuit joint functional analysis,choosing polyamide fiber and polyarylester fiber with same weaving process,two kinds of restraint layer fabrics were obtained.Effects on spacesuit joint performance were studied by comparison test on material mechanical properties and typical joint mobility with both fabrics.The results indicate that the characteristic of polyarylester with high strength and low elongation has advantage on compression and ergonomic support.The high modulus of polyarylester can provide creep resistance for spacesuit joints in the condition of periodic inflating and working,which can perform structure stability in life cycle.The high stiffness of polyarylester can reduce the thickness of fabric,which can improve hysteresis and reduce joint resistance on spacesuit joints but also interfere smoothness in the process of joint motion.The results can provide references for the design on spacesuit joints and the selection on restraint layer materials.
作者
李猛
尚坤
刘洪静
Li Meng;Shang Kun;Liu Hongjing(China Astronaut Research and Training Center,Beijing 100094,China;National Key Laboratory of Human Factors Engineering,Beijing 100094,China)
出处
《航天医学与医学工程》
2025年第2期164-168,共5页
Space Medicine & Medical Engineering
基金
全国重点实验室基金项目(HFNKL2025J05)。
作者简介
通讯作者:李猛,Email:nemobcjn@aliyun.com。
