救生伞背带材料的力学性能研究

发布时间：2018-01-18 05:25

本文关键词：救生伞背带材料的力学性能研究　出处：《航天医学与医学工程》2015年04期 　论文类型：期刊论文

【摘要】：目的研究五种现役的救生伞背带的织带材料的力学性能,为研究救生伞背带约束系统的约束性能提供数据。方法通过厚度计、力学实验机、摩擦测量装置分别对5种织带材料44-2600,44-2000A,44-1600,18-650和20-530A进行测试,其中前3种为主带,后2种为辅带。结果该5种织带厚度分别为(1.88±0.04)mm,(1.99±0.03)mm,(1.78±0.01)mm,(0.99±0.01)mm和(1.72±0.01)mm,3种主带与棉布及皮革的摩擦系数分别为0.185,0.213,0.178以及0.411,0.432,0.375。44-2600和18-650分别在主带和辅助带中表现出最高的抗拉强度。结论主带和辅带分别为44-2600和18-650的救生伞背带能提供更好的力学强度和约束性能。
[Abstract]:Objective to study the five active rescue parachute straps webbing to the mechanical properties of materials, to provide data for constraint properties of lifesaving umbrella restraint system. Through the method of strap thickness gauge, mechanical testing machine, friction measurement device of the 5 kinds of ribbon materials 44-2600,44-2000A, 44-1600,18-650 and 20-530A were tested, of which the first 3 kinds of main belt, 2 for the 5 kinds of results. As with ribbon thickness were (1.88 + 0.04) mm, (1.99 + 0.03) mm, (1.78 + 0.01) mm, (0.99 + 0.01) mm and (1.72 + 0.01) mm, 3 main belt friction coefficient with cotton and leather were 0.185,0.213,0.178 and 0.411,0.432,0.375.44-2600 and 18-650 are the main belt and the auxiliary belt exhibited the highest tensile strength. Conclusion the main belt and the auxiliary belt are respectively 44-2600 and 18-650 can provide a life-saving umbrella strap constraint mechanical strength and better performance.

【作者单位】：北京航空航天大学生物与医学工程学院生物力学与力生物学教育部重点实验室;中航工业航宇救生装备有限公司;空军航空医学研究所;国家康复辅具研究中心;
【基金】：国家自然科学基金资助(11421202,11120101001,11202017)
【分类号】：V244.21;R85
【正文快照】： 救生伞背带是救生伞主伞与人体相连结的装置,由高强度的纺织带和起连接、分离、调节等作用的金属组件构成。其主要功能是在飞行包线范围内为飞行员提供可靠而合适的定位和约束作用,在飞机乘员应急跳伞离机后传递主伞开伞力至人体。随着新一代战机机动性能显著增加,飞行员所处

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