电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2015年
12期
95-97
,共3页
离群值%性能退化%模糊聚类%最小二乘估计%退化轨迹
離群值%性能退化%模糊聚類%最小二乘估計%退化軌跡
리군치%성능퇴화%모호취류%최소이승고계%퇴화궤적
outliers%performance degradation%fuzzy clustering%least-squares estimation%degradation path
运用性能退化数据对高可靠长寿命产品进行可靠性评估整体效果良好。但是,在进行产品性能检测过程中,由于随机误差的影响,导致性能退化数据中可能存在一些离群值,使得评估结果不够稳健。在这种情况下,利用模糊聚类的最小二乘估计方法对退化轨迹参数进行估计,从而削弱离群值的影响,提高了评估的精度。本文利用实例进行分析,验证了方法的正确性与有效性。
運用性能退化數據對高可靠長壽命產品進行可靠性評估整體效果良好。但是,在進行產品性能檢測過程中,由于隨機誤差的影響,導緻性能退化數據中可能存在一些離群值,使得評估結果不夠穩健。在這種情況下,利用模糊聚類的最小二乘估計方法對退化軌跡參數進行估計,從而削弱離群值的影響,提高瞭評估的精度。本文利用實例進行分析,驗證瞭方法的正確性與有效性。
운용성능퇴화수거대고가고장수명산품진행가고성평고정체효과량호。단시,재진행산품성능검측과정중,유우수궤오차적영향,도치성능퇴화수거중가능존재일사리군치,사득평고결과불구은건。재저충정황하,이용모호취류적최소이승고계방법대퇴화궤적삼수진행고계,종이삭약리군치적영향,제고료평고적정도。본문이용실례진행분석,험증료방법적정학성여유효성。
Performance degradation data can provide with useful information about the reliability assessment. Especially for the high reliability and long life products, the overall effect is good using of performance degradation data. However, there are some outliers in the testing process of product performance because of the influence of random error, which make the assessment is not robust. In this case, we make use of the fuzzy clustering least squares method to evaluate the parameters, which impair the influence of outliers and improve the stability. This paper gives the actual example to show that the method is correct and effective.