针对控制棒驱动机构的运行噪声信号，采用无量纲参数分析驱动机构运行性能。分析结果表明：峰态因数与裕度因子对驱动机构运行性能的变化非常敏感，反映了驱动机构的不同运行状态特性，可判别驱动机构早期运行故障，用于分析驱动机构运行故障程度，有效检测控制棒驱动机构的运行性能。%Dimensionless parameters analysis has been applied in control rod driving mechanism ( CRDM ) ai-ming at running noise signals of CRDM in this article.The analysis results indicated that Kurtosis factor and Margin factor were very sensitive to running state of CRDM and reflected the characteristics of different running state of CRDM, can distinguish the early fault of the driving mechanism and used to analyze the operation fail-ure of the driving mechanism.So Kurtosis factor and Margin factor could be applied in the running performance estimation of CRDM.
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