The Effect of Metal Tube Diameter on AE Wave Propagation
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摘要: 针对海洋平台声发射无损检测的需求,通过研究同壁厚异径金属管声发射波传播特性,并与同厚度金属板中声发射波传播特性作一对比,得出异径金属管和板中传播特性规律及差异,揭示管径对声发射波传播特性影响。同壁厚管随着管径的增大,其声发射信号的峰值均呈衰减趋势。Abstract: For the requirements of offshore platform acoustic emission nondestructive testing, this paper obtains the propagation rules and differences of the metal pipes with different diameters and the differences with metal plate, reveals effects of the pipe diameter on propagation characteristics of acoustic emission waves, through the research on propagation characteristics of acoustic emission wave of metal pipes of the same wall thickness but with different diameters, comparison was made of propagation characteristics between the pipe and the plate taken as the limit case of the metal pipe. Pipe structures and plate structures are important parts of the offshore platform, so the research of this paper is of significant engineering application value to improve the positioning accuracy of fault sources and the analysis of fault characteristics in application of the offshore platform acoustic emission testing technology.
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Keywords:
- Acoustic Emission /
- Propagation Characteristics /
- Pipe Diameter /
- Offshore platform
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[1] 张虹,靳世久,孙立瑛.不同管道特征对声发射信号幅度的衰减影响[J].管道技术与设备,2007(3):13-14. [2] 他得安,刘镇清.超声导波波包宽度与管材内径-壁厚比的关系[J].应用科学学报,2003,21(3):231-235. [3] 他得安,刘镇清.超声导波频散特性与管材内径-壁厚比的关系[J].复旦学报:自然科学版,2003,42(1):7-13. [4] JOSEOH L. Ultrasonic Wave in Solid Media[M].London: England Cambridge University Press,1999. [5] 成建国,毛汉领,黄振峰.金属材料声发射信号特征提取方法[J].声学技术,2008,27(3):309-314. [6] 沈功田,耿荣生,刘时风.声发射信号的参数分析方法[J].无损检测,2002,24(2):72-77. [7] 刘刚,陈超.AE技术在石油工程中的应用[J].中国科技信息,2012(1):45-46. [8] 戴光,徐彦廷,李伟,等.声发射源信号强度的“逆源”问题研究[J].大庆石油学院学报,1998,22(3):59-62.
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