2016
DOI: 10.1109/tr.2015.2462353
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Degradation Modeling Based on a Time-Dependent Ornstein-Uhlenbeck Process and Residual Useful Lifetime Estimation

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Cited by 39 publications
(17 citation statements)
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“…A time-dependent Ornstein-Uhlenbeck (OU) Process is widely used to describe physical dynamics of systems which stabilize at its equilibrium point. In the field of reliability modeling, OU process could be a good candidate for modeling the degradation process when the drift is time-dependent and also depends on the degradation state [31,33] . Indeed for commonly used processes such as drifted Brownian motion [30] , the mean or the drift trend can be chosen quite freely, but the variance strongly depends on the stochastic process properties.…”
Section: : Ornstein-uhlenbeck Processmentioning
confidence: 99%
See 1 more Smart Citation
“…A time-dependent Ornstein-Uhlenbeck (OU) Process is widely used to describe physical dynamics of systems which stabilize at its equilibrium point. In the field of reliability modeling, OU process could be a good candidate for modeling the degradation process when the drift is time-dependent and also depends on the degradation state [31,33] . Indeed for commonly used processes such as drifted Brownian motion [30] , the mean or the drift trend can be chosen quite freely, but the variance strongly depends on the stochastic process properties.…”
Section: : Ornstein-uhlenbeck Processmentioning
confidence: 99%
“…The remaining useful lifetime pdf of this OU process can be numerically evaluated as the solution of a non-singular Volterra integral equation, see [33] .…”
Section: : Ornstein-uhlenbeck Processmentioning
confidence: 99%
“…However, the OU process is still in the exploratory stage in degradation modelling without a widely used form. 15,16 Since the degradation process is an irreversible process for most products such that they can only accumulate damage but not restore themselves, 17 the monotonic stochastic processes, such as the gamma process and IG process, are a natural choice for degradation analysis. Compared with the gamma process and Wiener process, the IG process is more flexible for incorporating random effects and explanatory variables, and is mathematically tractable, especially for certain degradation data.…”
Section: Introductionmentioning
confidence: 99%
“…Fang [16] and Bao [17], respectively, proposed a stochastic model updating, and solved it based on the Monte Carlo method. Deng [18] established a time-dependent degradation model, but did not consider the randomness of variables at each moment. Zhang [19] described the random effects of degradation modeling and remaining useful life, and the time-dependent functions were used to fit the degradation rules of characteristic parameters of random variables.…”
Section: Introductionmentioning
confidence: 99%