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Fuzzy Comprehensive Evaluation for the Reliability of Gearbox Shell Production Line

机译:变速箱壳体生产线可靠性的模糊综合评价。

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摘要

The following reliability indexes are calculated based on the observed one year and a half maintenance records for two gearbox shell production lines after 10 years of running: F(t),R(t),MTBF,MTTR,K,A and C. By contrasting the dynamic indexes of these 2 lines,we find out that the reliability of flexible line is lower than that of the rigid line. Furthermore,we build a fuzzy comprehensive model based on the static indexes above by using fuzzy math and AHP method. This model validates the conclusion of the difference in the reliability of the two production lines. Finally,we analyze the underlying reason of such reliability difference of these 2 lines.
机译:以下可靠性指标是根据运行10年后两条变速箱壳体生产线的一年半维护记录计算得出的:F(t),R(t),MTBF,MTTR,K,A和C。通过对比这两条线的动态指标,我们发现柔性线的可靠性低于刚性线。此外,我们利用模糊数学和层次分析法建立了基于上述静态指标的模糊综合模型。该模型验证了两条生产线可靠性差异的结论。最后,我们分析了这两条线的可靠性差异的根本原因。

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