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2016, 07, v.46;No.326 98-100
定时截尾试验零故障时的MTBF估计方法
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摘要:

针对产品定时截尾试验中零故障时无法进行平均故障间隔时间(Mean Time Between Failures,MTBF)估计的问题,分析了不同情况下点估计方法选用的注意事项,并通过公式推导得出了零故障时置信下限的计算公式。对置信下限计算公式进一步推导,得到了便于实际应用的简化计算公式。通过在多个可靠性试验中应用该方法进行MTBF估计,结果表明该方法可行有效。

Abstract:

For the problem that there is no estimation method of MTBF( Mean Time Between Failures) for zero-failure in reliability time truncated qualification test,the notices of selecting point estimation methods in different situation are analyzed,and the formula for lower confidence limit of MTBF is presented in this paper. A simplified formula convenient to be used in practice is put forward through further derivation. The practical application results of several reliability tests show that the method is feasible and effective.

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中图分类号:TB114.3

引用信息:

[1]付兴中,李伟,王晋忠等.定时截尾试验零故障时的MTBF估计方法[J].无线电工程,2016,46(07):98-100.

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