Predicting distribution of time to degradation limit using a weighted approach
Predicting distribution of time to degradation limit using a weighted approach
复制标题
使用加权方法预测降解极限的时间分布
DOI:
10.1007/s12206-018-1011-1
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发表时间:
2018-11
影响因子:
1.6
通讯作者:
R. Jiang
中科院分区:
文献类型:
--
作者:
R. Jiang
One of the key elements in condition-based maintenance is to predict the distribution of time to a pre-specified degradation limit based on the observed degradation paths. The prediction accuracy strongly depends on the method to fit the observed degradation paths to a mean degradation model. Since the recent observations contain more information about the future degradation trend than the earlier observations, a weight function can be used to represent the importance of an observation. As such, the prediction accuracy can be improved through using a weighted parameter estimation method. A key issue with the weighted method is to appropriately specify the form of the weight function and its parameters. This paper aims to address this issue. We adopt the Gaussian kernel function with parameters mu and sigma as the weight function. The mu is set at the last observation time and the value of sigma is optimally determined using a cross-validation approach. The appropriateness and usefulness of the proposed approach are illustrated by a real-world example.
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DOI:
10.1109/phm.2010.5414574
发表时间:
2010-02
期刊:
2010 Prognostics and System Health Management Conference
影响因子:
--
作者:
Bai Fang;Hongfu Zuo;Shuhong Ren
通讯作者:
Bai Fang;Hongfu Zuo;Shuhong Ren
影响因子:
1.6
作者:
Huang, Hong-Zhong;Wang, Hai-Kun;Liu, Zhiliang
通讯作者:
Liu, Zhiliang
影响因子:
1.6
作者:
M. Abdullah;M. Idres
通讯作者:
M. Abdullah;M. Idres
影响因子:
1.6
作者:
Y. Son
通讯作者:
Y. Son
影响因子:
2.3
作者:
Akbarov, Artur;Wu, Shaomin
通讯作者:
Wu, Shaomin