2. Prognosis and estimation of time to failure (RUL)
2.1 What? prognosis – definition and measurements
Many definitions of the term prognosis have been proposed, and there is no totally consensual one. However, one salient feature can be identified: prognosis is often equated with a predictive process (a future situation must be apprehended). Depending on the case, it refers to a process aimed at determining the remaining lifetime of a system, i.e. its DEFAD (duration of operation before failure), or the probability that the system will operate...
The Ultimate Scientific and Technical Reference
This article is included in
Maintenance
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Prognosis and estimation of time to failure (RUL)
From data to RUL: CBM architecture and PHM processes
Bibliography
- (1) - UNION EUROPEENNE - Recommandation de la commission du 30 mai 2001 concernant la prise en considération des aspects environnementaux dans les comptes et rapports annuels des sociétés : inscription comptable, évaluation et publication d'informations. - Journal officiel de la Communauté européenne, 30 mai 2001.
- ...
Software tools
CALCE Center for Advanced Life Cycle Engineering, Simulation Assisted Reliability Assessment SARA®, [Software]: simulation tool http://www.calce.umd.edu/
NI, Watchdog Agent™ Prognostics Toolkit for LabVIEW, [Software] toolbox developed by National Instrument and IMS
Websites
CALCE: website of the Center for Advanced Life Cycle Engineering, University of Maryland http://www.calce.umd.edu/
CPHM: China Prognostics and Health Management Society website http://www.chinaphm.com/
Georgia Tech: website of the Center for...
Events
Two conferences (one international, the other European) are organized annually by the PHM Society. http://www.phmsociety.org/
Two international conferences are organized annually by the IEEE Learned Society, with the support of the IEEE Reliability Society. http://www.rs.ieee.org/
...Standards and norms
- AFNOR Terminologie de la maintenance. - X60-319/NF EN 13306 - 2010
- Machine monitoring and diagnostics – prognosis – part 1: General guidelines. - ISO 13381-1 - 2004
Patents
System and method for health assessment of downhole tools, patent WO/2009/132281.
Systems and methods for predicting failure of electronic systems and assessing level of degradation and remaining useful life, patent WO/2008/036921.
Embedded prognostic health management system for aeronautical machines and devices and methods thereof, patent WO/2012/058260.
Directory
Laboratories – Design offices – Schools – Research centers (non-exhaustive list)
CRAN: Nancy Centre for Research in Automatics http://www.cran.uhp-nancy.fr
FEMTO-ST: Institut Franche-Comté Électronique, Mécanique, Thermique et Optique – Sciences et Technologies, Besançon
The Ultimate Scientific and Technical Reference
