关于北欧的疲劳实验室的比较—测量结果不确定值的反映
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关于北欧的疲劳实验室的比较—测量结果不确定值的反映(中文4000字,英文2800字)
摘要:这篇论文介绍了关于疲劳检测的不确定性的计算和报告的实验。6个北欧实验室对钢性元件进行了疲劳实验,他们也报告了疲劳测量不确定性的结果和计算方法。实验结果表明大量的测量不确定性结果是可以计算和报告的。没有实验室包括最重要的不确定源,当它们进行不确定值的计算时,有几个实验室没有计算符合从指导到结果的测量的不确定性值。
关键词:测量,计算,不确定性报告,疲劳测试,联合实验室
Reflections regarding uncertainty of measurement, on the results of a Nordic fatigue test interlaboratory comparison
Magnus Holmgren, Thomas Svensson, Erland Johnson, Klas Johansson
Abstract This paper presents the experiences of calculation and reporting uncertainty of measurement in fatigue testing. Six Nordic laboratories performed fatigue tests on steel specimens. The laboratories also reported their results concerning uncertainty of measurement and how they calculated it. The results show large differences in the way the uncertainties of measurement were calculated and reported. No laboratory included the most significant uncertainty source, bending stress (due to misalignment of the testing machine, “incorrect” specimens and/or incorrectly mounted specimens), when calculating the uncertainty of measurement. Several laboratories did not calculate the uncertainty of measurement in accordance with the Guide to the Expression of Uncertainty in Measurement (GUM) [1].
Keyword Uncertainty of measurement, Calculation, Report, Fatigue test, Laboratory intercomparison |