Exploration of Reliability Dynamics through Stochastic Process Modeling and Bayesian Updating
Topic: Exploration of Reliability Dynamics through Stochastic Process Modeling and Bayesian Updating Speaker: Dr. Haitao Liao University of Tennessee Nuclear Engineering Department When: 1:30 2:30 p.m., Wednesday, October 8, 2008 Where: 308 Pasqua Engineering Building Webcast: http://www.engr.utk.edu/nuclear/colloquia Viewers of the live webcast may submit questions and/or comments to the speaker either before or during the live webcast via an email message to utne@utk.edu. Please include your name and affiliation in your email message. Viewers who miss the live webcast can view the archived webcast, which is usually posted within 24 hours, at http://www.engr.utk.edu/nuclear/colloquia/Archive/. Viewers may also receive the speaker's slides in PDF format via email request to Kim Scarbrough (kscarbro@utk.edu) after the live webcast. ABSTRACT: One of the biggest challenges in the area of reliability engineering is to predict the reliability of a piece of equipment in response to changes in operating conditions. Such operating conditions may include environmental factors along with different user defined equipment operational modes. To enhance our capability of predicting the equipment reliability, the reliability dynamics in response to the changing operating conditions needs to be explored. This talk is focused on degradation analyses using a stochastic process approach. Specifically, a methodology based on stochastic differential equations is developed to predict the reliability of a fleet of identical systems under ergodic environmental conditions. Moreover, a Bayesian updating technique is provided to assist in predicting the remaining useful life of a single unit when its operational mode changes with time. All students and faculty are invited to attend. UTNE Graduate Students who hold Assistantships or Fellowships are required to attend in person Refreshments will be provided in 219 Pasqua immediately following the colloquium.
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