碳纤维复合材料激光超声可视化检测系统设计研究

发布时间：2018-11-09 16:10

【摘要】：针对碳纤维复合材料的快速可视化检测,分析了激光超声可视化检测系统的原理.采用扫描激光方式,根据超声传播的可逆性原理,设计了结构简单、操作简便的碳纤维复合材料快速激光超声可视化检测系统,并进行了实验研究.实验结果表明,激光超声可视化检测系统能有效用于碳纤维复合材料结构的缺陷检测,且准确性高,检测速度快,单次检测仅需几十微秒.检测结果直观,可实时动态展示构件内部缺陷,也可对超声传播信息按时间帧回放、选取,利于分析缺陷的位置和尺寸.该系统易于实现完全非接触式检测,适合碳纤维复合材料结构的实时在线监测.
[Abstract]:The principle of laser ultrasonic visual testing system is analyzed for the rapid visual detection of carbon fiber composites. Based on the principle of reversibility of ultrasonic propagation, a rapid laser ultrasonic visual detection system for carbon fiber composites was designed by using scanning laser, and the experimental study was carried out. The experimental results show that the laser ultrasonic visual detection system can be effectively used in the defect detection of carbon fiber composite structures, and the accuracy is high, the detection speed is fast, and the single detection takes only a few tens of microseconds. The detection result is intuitionistic and can dynamically display the internal defect of the component in real time. It can also play back and select the ultrasonic propagation information according to the time frame, which is helpful to analyze the position and size of the defect. The system is easy to realize complete non-contact detection and is suitable for real-time on-line monitoring of carbon fiber composite structures.
【作者单位】：西安工程大学机电工程学院;武警工程大学装备工程学院;
【基金】：国家自然科学基金(No.51305458) 陕西省教育厅科学研究项目基金(No.16JK1339)资助
【分类号】：TN249

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