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|Title:||Lifetime distribution based degradation analysis|
|Authors:||Chen, Z. |
|Citation:||Chen, Z., Zheng, S. (2005-03). Lifetime distribution based degradation analysis. IEEE Transactions on Reliability 54 (1) : 3-10. ScholarBank@NUS Repository. https://doi.org/10.1109/TR.2004.837519|
|Abstract:||The methods commonly used for degradation analysis deduce the lifetime distribution of a product from the distribution of the random parameters in the degradation path model for the product. This approach requires a functional form of the joint distribution of the random parameters, which poses certain practical difficulties. In this paper, we propose an alternative approach which makes inference directly on the lifetime distribution itself. In the proposed approach, degradation data are first used to derive predictive intervals of individual lifetimes. Then an imputation algorithm is invoked to obtain the estimate of the lifetime distribution. The approach has the following advantages: 1) the adequacy of the assumption on the lifetime distribution can be easily examined, 2) the estimated lifetime distribution has a closed form, and 3) the procedure can be more easily implemented. A simulation study is reported to demonstrate the efficiency of the proposed approach. The approach is applied to two real degradation data sets, and compared with Lu-Meeker's two stage method in the applications. © 2005 IEEE.|
|Source Title:||IEEE Transactions on Reliability|
|Appears in Collections:||Staff Publications|
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