摘要
针对在役海洋平台的无损检测大都采用超声等主动检测手段,这会受到工况的影响。而声发射等被动检测手段避免了这一问题,实现了对现役海洋平台的在线监测。综述了基于瞬态波、应力波、导波和模态声发射等波动理论进行的管结构声发射检测研究成果。对基于波动理论进行复杂结构检测的前景做了展望。
At present, the most widely applied method for offshore platform detection is active detection method, such as ultrasonic testing, but the working conditions will have impact on it. The passive detection, such as acoustic emissionl AE）, avoid this problem, the on-line detection to the offshore platform is realized. Description was made of the results of transient wave, stress wave, guide wave and modal acoustic emission for the tube testing based on wave motion theory. The detection to the complex structure based on wave motion theory was expected.
出处
《无损检测》
2009年第1期68-71,共4页
Nondestructive Testing
基金
国家自然科学基金(50479060)
关键词
声发射检测
波动
管结构
Acoustic emission testing
Wave motion
Tube
