Preprint Article Version 1 This version is not peer-reviewed

Online Subspace Tracking of Sensors Data for Damage Propagation Modeling and Predictive Analytics

Version 1 : Received: 17 October 2019 / Approved: 18 October 2019 / Online: 18 October 2019 (11:29:49 CEST)

How to cite: Khan, F. Online Subspace Tracking of Sensors Data for Damage Propagation Modeling and Predictive Analytics. Preprints 2019, 2019100212 (doi: 10.20944/preprints201910.0212.v1). Khan, F. Online Subspace Tracking of Sensors Data for Damage Propagation Modeling and Predictive Analytics. Preprints 2019, 2019100212 (doi: 10.20944/preprints201910.0212.v1).

Abstract

We analyze damage propagation modeling of turbo-engines in a data-driven approach. We investigate subspace tracking assuming a low dimensional manifold structure and a static behavior during the healthy state of the machines. Our damage propagation model is based on the deviation of the data from the static behavior and uses the notion of health index as a measure of the condition. Hence, we incorporate condition-based maintenance and estimate the remaining useful life based on the current and previous health indexes. This paper proposes an algorithm that adapts well to the dynamics of the data and underlying system, and reduces the computational complexity by utilizing the low dimensional manifold structure of the data. A significant performance improvement is demonstrated over existing methods by using the proposed algorithm on CMAPSS Turbo-engine datasets.

Subject Areas

online learning; machine prognostics; sensor systems; signal processing; damage propagation; predictive maintenance; intelligent sensing

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