航空复合材料智能敲击检测方法研究

复合材料在生产和制造过程中难免会存在缺陷和损伤，严重影响着航空安全。敲击检测是最简单、运用最广泛的无损检测方法，然而其向智能化方向发展过程中出现了诸多问题。对复合材料结构特性、缺陷和损伤、安全性、敲击检测原理、敲击锤设计、信号处理单元、数据库搭建和智能检测算法进行了深入研究，提出了敲击检测标准流程和规范、数据库搭建方法、以及智能聚类检测算法，在此基础上开发了智能敲击检测系统。

Research on Smart Tap Testing of Aviation Composite Material

Defects and damages of composite material is inevitable in the process of its production and manufacturing ,that seriously hazards the aviation security .Tap testing is the simplest and the most widely used nondestructive testing ( NDT) method,but it encountered many problems developing in the direction of intelligent .In this paper ,the composite material structural characteristics ,defects and damages ,securi-ty,knock detection principle ,knock hammer design ,signal processing unit ,database building and intelli-gent detection algorithm were further studied ,and the knock detection standard process and specification , database construction methods and intelligent clustering algorithm was put forward .Finally,the intelligent tap testing system is developed based on above research .