The intent of this paper is to explain the basic theory and steps involved in performing a Weibull analysis of gas turbine component data. It is also to illustrate through practical examples, the application of the theory discussed and to demonstrate the versatility of performing Weibull analysis. Real-world applications will include using Weibull analysis to identify batch problems in fuel nozzle support housings and a method to determine if the thrust bearing wear rate is best fit with a three-parameter Weibull or a lognormal distribution. Also, a special technique will be described to determine if Weibull distributions for blade path and flashback thermocouple failures are significantly different failure modes.
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Copyright © 2005
by ASME
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