钢轨扣件动静刚度测试不确定度计算分析

Calculation of the Uncertainty of the Static and Dynamic Stiffness Test of Rail Fastening

    摘要
  • 摘要: 通过MTS电液伺服试验机, 对随机抽取生产过程中的某型扣件的动静刚度进行了测试, 并对结果进行了不确定性评定。结果表明, 实验条件下的静刚度和动刚度测试结果的相对不确定度分别为0.061 7和0.073 9。

     

    Abstract: MTS electro-hydraulic servo testing machine was adopted to test the static and dynamic stiffness of upper self-locking double layer nonlinear damping fastener randomly selected in the production process.The results showed that the relative uncertainties of static stiffness and dynamic stiffness were 0.061 7 and 0.0739, respectively.

     

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