针对轨道车辆车窗胶粘结构双晶探头检测方案设计

Design of double crystal probe detection scheme for adhesive structure of rail vehicle window

摘要:

为了对不易拆除的列车车窗胶粘结构进行脱粘检测，利用超声检测方法探伤快、灵敏度高的优点，提出了超声脉冲回波量化检测的方法。采用仿真与实验相结合的手段，通过建立车窗胶接结构仿真模型，详细分析了超声波在粘胶材料中的传播过程以及探头不同参数对超声信号的影响，设计了一款专门针对车窗胶粘的一款双晶探头；最后搭建超声检测实验系统，验证了该仿真模型以及探头检测的正确性和可靠性，为车窗胶接结构脱粘检测定量分析提供了参考模型和理论依据。

Abstract:

In order to detect debond detection of the adhesive structure of the train window that is not easy to remove, the ultrasonic pulse echo quantitative detection method was proposed by using the advantages of fast flaw detection and high sensitivity.By means of simulation and experiment and establishing the simulation model of window bonding structure,the propagation process of ultrasonic in adhesive material and the influence of different probe parameters on ultrasonic signal were analyzed in detail,and a double crystal probe specially for window bonding was designed; Finally,an ultrasonic testing experimental system was built to verify the correctness and reliability of the simulation model and probe testing,which provides a reference model and theoretical basis for the quantitative analysis of debonding detection of window bonding structure.