杆式破片对高空气球膜体损伤影响因素分析  

Analysis of the influence factors of rod-shaped fragment on high altitude balloon membrane damage

作　　者：高燕婷 张国伟[1] 何瑞龙 雷文博 Gao Yanting;Zhang Guowei;He Ruilong;Lei Wenbo(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《空天技术》2024年第3期113-118,共6页Aerospace Technology

摘　　要：随着现代科技的发展,高空气球在民、军用领域应用极其广泛,同时也造成了颇多隐患。该研究主要通过数值模拟的方式揭示了高空气球在杆式破片冲击下的损伤规律及破坏形式,从而进一步分析了杆式破片在不同长径比和速度下对高空气球膜体损伤性能。结果表明:(1)气球膜体可以抵挡50 m/s以下的破片冲击,速度不足50 m/s时,只能由端面对气球膜体造成小破口;速度达到50 m/s时,方可将气球膜体穿透,且速度越高所造成的破坏面积越大。(2)杆式破片长径比增大会造成气球膜体的整体损伤面积变大,但对气球膜体被冲击的速度方向的位移量的影响不大。该研究可为民用和军用领域打击违规施放的高空气球提供一定的理论依据和技术支撑。With the development of modern science and technology,the extensive application of highaltitude balloons in the civilian and military fields has also caused a lot of hidden dangers.This study mainly studies the damage law and damage form of high altitude balloon under the impact of rod type fragment through numerical simulation,and analyzes the damage performance of rod type balloon film at different length ratio and speed by numerical simulation.The results show that:(1)the balloon membrane can withstand the impact of kill element 50 m/s,when the speed is less than 50 m/s,only by the end;the speed of 50 m/s,the balloon membrane can be penetrated,and the higher the speed of the damage area.(2)The increase of the rod-shaped fragment aspect ratio will cause the overall damage area of the balloon membrane,but it has little impact on the displacement of the velocity direction of the balloon membrane.This research can provide certain theoretical basis and technical support for the civil and military fields to combat the illegal release of high-altitude balloons.

关 键 词：杆式破片 高空气球膜体 损伤分析 低速冲击 仿真模拟 

分 类 号：TB122[理学—工程力学]