飞机救生爆炸切割冲击防护技术研究  

Shock Prevention Research for Explosive Cutting in Aircraft Escape System

作　　者：关焕文[1,2] 林贵平[1,2] 宋文娟 张絮 朱永峰 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]中航工业第一飞机设计研究院环控救生试验室,陕西西安710089

出　　处：《火工品》2015年第5期17-20,共4页Initiators & Pyrotechnics

摘　　要：根据人体听觉损伤安全极限和非听觉损伤安全极限,结合爆炸切割清理弹射通道技术的工程实践,确定了弹射时爆炸冲击对飞行员的损伤安全极限,并提出了爆炸冲击超压的估算公式。采用芳纶布、芳纶布增强橡胶、芳纶纤维增强橡胶、橡胶等4种材料进行了爆炸切割防护试验,并进行爆炸冲击防护效果对比,确定采用橡胶作为防护材料;同时对单件试验和两件试验的爆炸冲击进行测试,得到两次爆炸切割比单次爆炸切割的冲击波超压增加约30%的结果。According to safety limits of human auditory organ damage and human non-auditory injury, and considering the engineering application of explosive cutting on clearance ejection path, the damage safety limits of pilot is revealed during ejection, and the estimate formula of shockwave overpressure is offered. Four sorts of material involving Kevlar fabric, Kevlar fabric reinforced rubber, Aramid fiber reinforced rubber and rubber, were applied to carry explosive cutting protection experiment, and the protective effect of these different material was contrasted. Then, rubber was selected as the ideal protective material, and the single specimen test and dual specimen test were carried out to analyze the explosive effect. It showed that, contrasted with the single specimen, the shockwave ovelpressure of dual specimen was increased by 30%.

关 键 词：爆炸切割 弹射救生 冲击 超压 防护设计 

分 类 号：TJ459[兵器科学与技术—火炮、自动武器与弹药工程]