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Failure mode and effects analysis of CNC machine tools based on SPA

机译:基于SPA的数控机床故障模式及影响因素分析

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摘要

To reduce the analysis error for highly subjective scoring and unilateral evaluation in traditional failure mode and effects analysis (FMEA) for machine tools, a modified FMEA is presented based on set pair analysis (SPA) to which two indicators called M and R are added. In this process, risk priority number (RPN) can be calculated through the connection degree of SPA after the failure mode and evaluation indicator of each mode have been determined. Finally, the most serious failure mode can be determined. Taking a tool magazine and automatic tool changer (ATC) as an example, the feasibility of the proposed FMEA is demonstrated.
机译:为了减少传统故障模式下的高主观评分和单方面评估的分析误差以及机床的效果分析(FMEA),提出了一种基于集对分析(SPA)的改进FMEA,并在其中添加了两个指标,分别称为M和R。在此过程中,可以在确定故障模式和每种模式的评估指标之后,通过SPA的连接程度来计算风险优先级数(RPN)。最后,可以确定最严重的故障模式。以刀库和自动换刀装置(ATC)为例,论证了所提出的FMEA的可行性。

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