| 声发射检测中利用能量进行定位的新方法 |
| |
| 引用本文： | 朱祥军. 声发射检测中利用能量进行定位的新方法[J]. 中国测试技术, 2011, 37(1) |
| |
| 作者姓名： | 朱祥军 |
| |
| 作者单位： | 中石油川庆钻探工程公司安全环保质量检验监督研究院,四川,广汉,618300 |
| |
| 摘 要： | 声发射检测过程中,对缺陷的定位是重要的一个步骤,传统的声发射检测利用时差定位方法,而时差定位里重要的参数是声速。通过推导,得到一种利用声衰减特性和能量参数对声发射源进行定位的新方法,并用声发射仪对普通钢件以铅笔芯折断作为模拟源进行测试,证明这种无需声速测量的新方法可行,且准确性可以得到保证。该方法的提出为声发射定位技术拓展了新方向,对提高声发射检测质量有一定的帮助。
|
| 关 键 词： | 声学 声发射 源定位 线性 平面 能量 |
New location method for acoustic emission source by energy |
| |
| ZHU Xiang-jun. New location method for acoustic emission source by energy[J]. China Measurement Technology, 2011, 37(1) |
| |
| Authors: | ZHU Xiang-jun |
| |
| Affiliation: | ZHU Xiang-jun(Safety Environment Quality Surveillance and Inspection Research Institute of CNPC Chuanqing Drilling and Exploration Corporation,Guanghan 618300,China) |
| |
| Abstract: | Defect location is very important for acoustic emission(AE) testing.Generally,sound velocity is usually used for the testing of TDOA location.In this work,a new location method was proposed on the basis of attenuation rule for waves propagation and energy for acoustic emission source.Using the method,experiment tests showed that the defects could be located accurately with the determination of sound velocity unnecessary.The method provides a new technology direction for acoustic emission location,and it can... |
| |
| Keywords: | acoustics acoustic emission source location liner plane energy |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
