Aircraft composite material structure health monitoring system

The invention discloses an aircraft composite material structure health monitoring system. The health monitoring system comprises the steps of 1, manufacturing two intelligent layers in a patch; 2, performing curing treatment; 3, exciting lamb waves and receiving the lamb waves; and 4, calculating a damage index. Aiming at the problem that the crack propagation condition cannot be monitored after a composite patch is used for repairing the cracks generated on the metal skin of the aircraft, the crack monitoring system is designed, and the system is simple to operate, sensitive in monitoring and low in cost, does not influence the crack repairing quality, and can effectively monitor the crack propagation and patch debonding conditions. And the operation safety of the aircraft is obviously improved. 本发明公开了一种飞行器复合材料结构健康监控系统，包括步骤1：在补片中制造两个智能层、步骤2：固化处理、步骤3：激发lamb波和接收、步骤4：损伤指数的计算。本系统针对飞机金属蒙皮产生裂纹采用复合材料补片修复后，对裂纹扩展情况没有办法进行监控这一问题，设计了一套裂纹监控系统，该系统操作简单，监控灵敏，成本低，不影响裂纹修复质量，能够有效监控裂纹扩展和补片脱粘情况，显著提升飞机运行的安全性。