风电叶片蒙皮与腹板粘接红外热成像检测研究

Study on Detection of Infrared Thermal Imaging of Bonding Between Covering and Web of Wind Turbine Blade

采用主动式持续热激励红外热成像技术对几个不同蒙皮厚度的粘接试件进行检测,并结合后续数据重建等算法,可有效提高蒙皮与腹板间有胶区与无胶区之间的热对比度,实现了蒙皮与腹板之间粘接检测。从而验证了大功率持续热激励的红外热成像技术应用于风电叶片无损检测领域的可行性,为风电叶片中较深缺陷的无损检测提供了新的解决方法。

Active continuous excitation infrared thermal imaging technology was adopted to test several bonding specimen with different thickness and combines with subsequent data reconstruction algorithm.At the time when the thermal contrast between plastic zone and non-plastic zone of covering and web is sufficiently improved,the bonding detection between covering and web is also accomplished.The possibility that infrared thermal imaging technology cooperating with high power continuous thermal excitation applied to the field of wind turbine blade nondestructive testing is verified and thus a new solution for deep located defect detection in wind turbine blade is provided.