Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Methods And Systms For Analyzing The Degradation And Failure Of Mechanical Systems

Patent ·
OSTI ID:879879
 [1];  [2];  [1];  [2];  [2]
  1. Kennewick, WA
  2. Richland, WA
+ Show Author Affiliations
Methods and systems for identifying, understanding, and predicting the degradation and failure of mechanical systems are disclosed. The methods include measuring and quantifying stressors that are responsible for the activation of degradation mechanisms in the machine component of interest. The intensity of the stressor may be correlated with the rate of physical degradation according to some determinable function such that a derivative relationship exists between the machine performance, degradation, and the underlying stressor. The derivative relationship may be used to make diagnostic and prognostic calculations concerning the performance and projected life of the machine. These calculations may be performed in real time to allow the machine operator to quickly adjust the operational parameters of the machinery in order to help minimize or eliminate the effects of the degradation mechanism, thereby prolonging the life of the machine. Various systems implementing the methods are also disclosed.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
DOE Contract Number:
AC06-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
US 6,853,951
Application Number:
10/316199
OSTI ID:
879879
Country of Publication:
United States
Language:
English

References (4)

Predictive engineering for aging infrastructure conference February 1999
Detection of incipient cavitation in pumps using acoustic emission
  • Neill, G. D.; Reuben, R. L.; Sandford, P. M.
  • Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, Vol. 211, Issue 4 https://doi.org/10.1243/0954408971529737
journal November 1997
A Foundation for Stressor-Based Prognostics for Next Generation Systems conference March 2009
Keeping the Flow in Nuclear Plants journal May 2001

Similar Records

Prognostics and Condition Based Maintenance: A New Approach to Precursive Metrics
Conference · 2002 · OSTI ID:860430
PROGNOSTICS AND CONDITION-BASED MAINTENANCE: A NEW APPROACH TO PRECURSIVE METRICS
Journal Article · 2004 · Nuclear Technology, 145(3):275-286 · OSTI ID:15010564
Damage Assessment Technologies for Prognostics and Proactive Management of Materials Degradation (PMMD)
Journal Article · 2009 · Transactions of the American Nuclear Society, 100(1):215-217 · OSTI ID:978524

Related Subjects