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1)  defect pipelines
缺陷管道
1.
In view of different defect types,the methods and developments in domestic and foreign of the remaining strength assessment about defect pipelines were introduced,technical thoughts of remaining strength was introduced.
针对不同的缺陷类型,介绍了国内外含各种缺陷管道的剩余强度评价方法及其进展,阐述了剩余强度评价的技术思路。
2)  pipeline defect
管道缺陷
1.
To the bad noise interference problem occurred in the signal of pipeline defect magnetic flux leakage inspection,the empirical mode decomposition(EMD) method developed recently was used to the noise suppressing and the effective signal extraction for the signals of magnetic flux leakage inspection.
针对管道缺陷漏磁检测信号中存在严重噪声干扰的问题,将经验模态分解方法用于漏磁检测信号的噪声分离和有效信号提取,对实际测试的与输油管道材质相同且具有人为模拟缺陷的漏磁信号进行处理,结果表明,该方法可以很好地抑制噪声从而得到清晰的、表征缺陷特征的有用信号,达到与小波变换相同的处理效果,同时克服了小波方法中基函数选择困难的问题。
2.
In ultrasonic nondestructive testing of pipeline defect, the echo signal of pulse reflection, which is used as a basic testing data, is disturbed by electronic noise (including thermal noise and digitalization noise), and structure noise.
在管道缺陷超声无损检测中 ,作为检测基本数据的脉冲反射回波信号受到电子噪声 (包括热噪声和量化噪声 )和结构噪声的干扰 ,使材料的缺陷信号变得难以识别。
3)  pipeline with defect
含缺陷管道
1.
For improving the accuracy of the lifetime predication of the pipeline with defect, the article expounds the assessment standard and method of the pipeline , introduces AGA NG -18 standard, ASME B31G standard and concrete appraisal method of the defect analyses their characteristics, and puts forward the study direction at FEA.
为提高含缺陷管道剩余寿命预测的精确程度,系统阐述了国内外含缺陷管道的评价标准及评价方法,介绍了AGA NG-18标准、ASME B31G标准以及缺陷的具体评价方法,分析了各自的特点,针对评价方法提出了以有限元分析为研究方向的结论。
4)  piping with defect
含缺陷压力管道
5)  pipeline lacuna repair
管道缺陷补强
6)  straight pipe defects
直线管道缺陷
补充资料:点缺陷(见晶体缺陷)


点缺陷(见晶体缺陷)
point defect

  点缺陷point defeet见晶体缺陷。
  
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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