頁籤選單縮合
題名 | A New Bounded Intensity Function for Repairable Systems= |
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作者 | Wang, Fu-kwun; Lu, Yi-chen; |
期刊 | 工業工程學刊 |
出版日期 | 20140100 |
卷期 | 31:1 2014.01[民103.01] |
頁次 | 頁36-40 |
分類號 | 494.5 |
語文 | eng |
關鍵詞 | Bathtub-shaped failure rate; Bounded intensity function; Maximum likelihood estimation; Repairable system; |
英文摘要 | Lifetime failure data might have a bathtub-shaped failure rate. In this study, we propose a new model based on a mixture of bounded Burr XII distribution and 2-parameter Engelhardt-Bain process, to describe a failure process including a decreasing intensity phase, an increasing phase, and an accommodation phase for repairable systems. The estimates of the model parameters are easily obtained using the maximum likelihood estimation method. Through numerical example, the results show that our proposed model outperforms other existing models, such as superposed power law process and bounded bathtub intensity process with regard to Akaike Information Criterion value. |
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