Formulation of Prognostics Requirements

This paper proposes a methodology for formulating prognostics requirements for designers of electronic prognostics (EP)-enabled systems. A usefulness criterion is introduced that enables the specification of admissible uncertainty bounds on measurements of systems' health/degradation parameters...

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Bibliographic Details
Main Authors: Usynin, A., Hines, J.W., Urmanov, A.
Format: Conference Proceeding
Language:English
Subjects:
Data analysis
Data engineering
Degradation
Design engineering
Fatigue
Life estimation
Lifetime estimation
Reliability engineering
Systems engineering and theory
Uncertainty
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Description
Summary:This paper proposes a methodology for formulating prognostics requirements for designers of electronic prognostics (EP)-enabled systems. A usefulness criterion is introduced that enables the specification of admissible uncertainty bounds on measurements of systems' health/degradation parameters. Keeping the uncertainty of health estimation below the admissible levels assures more accurate individual remaining useful life (RUL) estimations than those based on traditional population average time-to-failure. The proposed methodology is demonstrated using the well-known cumulative damage model that was extended to incorporate individual degradation data.
ISSN:1095-323X
2996-2358
DOI:10.1109/AERO.2007.352881