期刊
RELIABILITY ENGINEERING & SYSTEM SAFETY
卷 115, 期 -, 页码 161-169出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2013.02.019
关键词
Battery degradation; Crack growth; Matlab code; Model-based prognostics; Particle filter; Remaining useful life
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) [0420-2011-0161]
- Korean government's Ministry of Knowledge Economy
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0927790] Funding Source: National Science Foundation
This paper presents a Matlab-based tutorial for model-based prognostics, which combines a physical model with observed data to identify model parameters, from which the remaining useful life (RUL) can be predicted. Among many model-based prognostics algorithms, the particle filter is used in this tutorial for parameter estimation of damage or a degradation model. The tutorial is presented using a Matlab script with 62 lines, including detailed explanations. As examples, a battery degradation model and a crack growth model are used to explain the updating process of model parameters, damage progression, and RUL prediction. In order to illustrate the results, the RUL at an arbitrary cycle are predicted in the form of distribution along with the median and 90% prediction interval. This tutorial will be helpful for the beginners in prognostics to understand and use the prognostics method, and we hope it provides a standard of particle filter based prognostics. (C) 2013 Elsevier Ltd. All rights reserved.
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