管道周向导波检测技术研究进展及展望

摘要

周向导波检测技术是超声无损检测和弹性动力学研究的重要领域之一,综述了周向导波检测技术及其应用研究进展.首先介绍了周向导波的分类、频散特性、主要激励方式以及薄壁管道中周向导波与板中导波的关系;简述了多层管道中的周向导波的研究进展.在此基础上,着重讲述了周向导波的传感技术、数值分析以及工程应用进展.最后,对周向导波检测技术进行了总结与展望.%Circumferential guided waves inspection technique is one of important research areas in ultrasonic nondestructive testing and elastodynamics. This paper fully reviewed circumferential guided waves inspection technique and its research progress. First, the classification, dispersion characteristic, excitation method of circumferential guided waves,the relationship between circumferential guided waves in pipe and guided waves in plate were introduced. Circumferential guided waves in multi-layered pipes were briefly reviewed. Based on these, the progress of transducer technology, signal processing and engineering application of circumferential guided waves were focused. Finally, conclusions and outlook on future development of circumferential guided waves inspection technique were prospected.