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爆破切割蒙皮形成应急出口在飞机上的应用国内尚属首次,其最大优点是节省救生准备时间.从爆炸减压、结构变形、结构强度、爆炸反向冲击等方面进行了理论计算,分析了高空爆破切割形成应急出口的可行性.针对切割索弯折过框及长桁降低切割效果问题,进行了摸底试验和余度试验,试验结果表明:只要过框位置切割索弯折后与框距离控制在2～8 mm,过长桁位置切割索弯折后与长桁距离不大于2 mm,就可以满足切割分离要求,切割索弯折后相互之间不产生影响.通过1∶1地面验证试验,证明了爆破切割蒙皮形成应急出口的可行性,并成功安装于某型飞机上.研究成果可为其他型号采用爆破切割技术提供理论基础和试验数据支持.
Blasting cutting skin to form an emergency exit in the aircraft for the first time the domestic application, its biggest advantage is to save life-saving preparation time from the explosion decompression, structural deformation, structural strength, explosion reverse impact theoretical calculations, analysis The feasibility of blasting at high altitude to form an emergency exit.Aiming at the problem that cutting wire bends the box and the stringer reduces the cutting effect, the bottoming test and the redundancy test are carried out. The test results show that as long as the cutting box Control in 2 ~ 8 mm, the length of the stringer after cutting the cable kink folded with the long striker distance of not more than 2 mm, to meet the cutting and separation requirements, after the cutting cord bending does not affect each other through the 1: 1 ground verification The test proves the feasibility of blasting skinning to form emergency exit and successfully installed on a certain type of aircraft.The research results can provide theoretical basis and experimental data support for blasting cutting technology of other models.