摘要
综述近年来超声导波检测研究的最新进展。介绍导波在不同材料和结构中的频散特性及与之相关的理论成果。从导波的结构出发,分析了导波在介质中能量与位移的分布。论述了导波检测技术领域中数值分析方法和信号处理方面的一些新技术。
The recent advances in ultrasonic guided wave testing technique are summarized. Firstly, the disperse characteristics and the related theoretical results of the guided waves in different materials and distinct structures are introduced. Then, based on the structure of the guided waves, the distribution of the energy and displacement of guided waves is analyzed. Lastly, some new techniques of numerical analysis and signal processing for guided wave nondestructive testing are described.
出处
《无损检测》
北大核心
2006年第2期57-63,共7页
Nondestructive Testing
基金
国家自然科学基金资助项目(50475006)
关键词
超声检测
导波
频散特性
有限元
边界元
信号处理
Ultrasonic testing
Guided wave
Disperse characteristic
Finite element
Boundary element
Signal processing
