Remaining Useful Life Prediction for Degradation Processes With Long-Range Dependence
Remaining Useful Life Prediction for Degradation Processes With Long-Range Dependence
复制标题
具有长程依赖性的降解过程的剩余使用寿命预测
DOI:
10.1109/tr.2017.2720752
复制
发表时间:
2017-08
影响因子:
5.9
通讯作者:
Donghua Zhou
中科院分区:
文献类型:
--
作者:
Hanwen Zhang;Maoyin Chen;Xiaopeng Xi;Donghua Zhou
A prerequisite for the existing remaining useful life prediction methods based on stochastic processes is the assumption of independent increments. However, this is in sharp contrast to some practical systems including batteries and blast furnace walls, in which the degradation processes have the property of long-range dependence. Based on the fractional Brownian motion, we adopt a degradation process with long-range dependence to predict the remaining useful life of the above systems. Because the degradation process with long-range dependence is neither a Markovian process nor a semimartingale, the exact analytical first passage time is difficult to derive directly. To address this problem, a weak convergence theorem is first adopted to approximately transform a fractional Brownian motion-based degradation process into a Brownian motion-based one with a time-varying coefficient. Then, with a space-time transformation, the first passage time of the degradation process with long-range dependence can be obtained in a closed form. Unknown parameters in the degradation model can be identified using discrete dyadic wavelet transform and maximum likelihood estimation. Numerical simulations and a practical example of a blast furnace wall are given to verify the effectiveness of the proposed method.
登录
查看更多内容
DOI:
--
发表时间:
1951
期刊:
Transactions of the American Society of Civil Engineers
影响因子:
--
作者:
H. Hurst
通讯作者:
H. Hurst
DOI:
--
发表时间:
2007
期刊:
--
影响因子:
--
作者:
Ming-Yung Lee;Jen Tang
通讯作者:
Ming-Yung Lee;Jen Tang
DOI:
10.2307/3612158
发表时间:
1970-05
期刊:
The Mathematical Gazette
影响因子:
--
作者:
Patrick Billingsley
通讯作者:
Patrick Billingsley
影响因子:
5.9
作者:
Muheng Wei;Maoyin Chen;Donghua Zhou
通讯作者:
Muheng Wei;Maoyin Chen;Donghua Zhou
影响因子:
1.7
作者:
T. Sottinen
通讯作者:
T. Sottinen