某型直升机蒙皮弹孔损伤胶接抢修工艺研究

Study on quick repair technology for bullet hole damage of skin of a helicopter

战时飞机蒙皮受到子弹攻击会产生损伤,影响直升机的正常飞行,采用传统工艺修复所需时间较长。针对这一问题,对一种基于胶接剂和纤维预浸料的蒙皮快速抢修的新工艺方法进行了研究。首先,对此工艺的修补方案及流程进行了介绍;其次,在上述研究的基础上,采用仿真与试验结合的方法研究了修补方式和打磨方式对修补后蒙皮强度的影响;最后,采用试验对上述研究结果进行验证,得出采用此工艺方法修复后的蒙皮,其强度可达到蒙皮母板强度的98%以上,其修复时间缩短为传统复材修复工艺的2/3,其修复重量为传统工艺的1/3。

In wartime,the skin of aircraft will be damaged by bullet attack,which will affect the normal flight of helicopter.In order to solve this problem,a new quick repair technology of skin based on adhesive and fiber prepreg was studied.Firstly,the repair scheme and process of this process are introduced.Secondly,on the basis of the above research,the influence of repairing method and grinding method on the strength of repaired skin was studied by combining simulation and experiment.Finally,the results of the above research were verified by experiment,and the strength of repaired skin by this process method could reach more than 98%of the strength of skin mother plate.Its repair time is reduced to 2/3 of the traditional composite repair process,and its repair weight is 1/3 of the traditional process.