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作 者:杨爽[1] 霍梦怡 曲南 姜炜烨 张菡 Yang Shuang;Huo Mengyi;Qu Nan;Jiang Weiye;Zhang Han(Aerospace Vehicle R&D Center,Suzhou Automotive Research Institute,Tsinghua University,Suzhou 215200,China)
机构地区:[1]清华大学苏州汽车研究院航天载具研发中心,江苏苏州215200
出 处:《体育科技文献通报》2023年第4期217-223,232,共8页Bulletin of Sport Science & Technology
摘 要:本文主要概述了跳伞运动中降落伞的运行原理、形状类型、主要部件、关键材料、装备应用和发展趋势的基础上,对比分析了对4家国际主流运动降落伞生产商的主降落伞、备用降落伞进行技术及数据,探究不同气孔数量、展弦比以及材料对降落伞运行的影响。研究发现:主降落伞的展弦比相对更高,在2.2-2.8之间。伞翼的展弦比越高,产生的形状阻力越小,但最大不能超过3:1。主降落伞气孔数量为9孔的居多。对于备用降落伞而言,气孔均为7孔,展弦比范围基本在2.0-2.2之间。The paper gives a general overview of the operating principle,type,main components,key materials,application and development trend of parachutes in skydiving.Meanwhile,through the analysis and comparison of the technology and data of main and reserve parachutes of four international mainstream skydiving parachute manufacturers,the influence of porosity,aspect ratio and materials on the parachute operation has been explained.It is found that the aspect ratio of the main parachute is relatively higher,between 2.2 and 2.8.The higher the aspect ratio is,the smaller the shape resistance.However,the maximum aspect ratio of a canopy should not exceed 3:1.The number of cells of the main parachute is mostly 9.For reserve parachutes,the number of cells is 7,and the aspect ratio range is basically 2.0-2.2.
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