An Improved Performance Degradation Radar Chart and Its Applications to Prognostics and Health Management

Abstract

Radar chart is an important visual decision-making tool in prognostics and health management (PHM) and it can help administrators make the right judgments. We presented an improved performance degradation radar chart algorithm to enrich the visual decision-making tools in this paper. Our algorithm improves the feature extraction ability of weak fault signals from the machine and achieve visual comparison of performance degradation assessment of machine. The effectiveness of the algorithm is validated by experiments of rolling element bearings.