1. Graph-based structural change detection for rotating machinery monitoring.
- Author
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Lu, Guoliang, Liu, Jie, and Yan, Peng
- Subjects
- *
ROTATING machinery , *ROTATIONAL motion (Rigid dynamics) , *DYNAMIC balance (Mechanics) , *ROTORS , *ALGORITHMS - Abstract
Detection of structural changes is critically important in operational monitoring of a rotating machine. This paper presents a novel framework for this purpose, where a graph model for data modeling is adopted to represent/capture statistical dynamics in machine operations. Meanwhile we develop a numerical method for computing temporal anomalies in the constructed graphs. The martingale-test method is employed for the change detection when making decisions on possible structural changes, where excellent performance is demonstrated outperforming exciting results such as the autoregressive-integrated-moving average (ARIMA) model. Comprehensive experimental results indicate good potentials of the proposed algorithm in various engineering applications. This work is an extension of a recent result (Lu et al., 2017). [ABSTRACT FROM AUTHOR]
- Published
- 2018
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