Weibull++ Standard Folio Data 2P-Weibull: Difference between revisions

Revision as of 16:05, 24 January 2012

Reliability Web Notes
Weibull Folio
Life Data Analysis
Two-Parameter Weibull Distribution
Template:Two parameter weibull distribution
The Weibull Distribution
See Examples...

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-The Weibull distribution is one of the most widely used lifetime distributions in reliability engineering. It can model an increasing, decreasing and or constant failure rate behavior.  The 2-parameter Weibull is the most commonly used form of the distribution. It's pdf is given by:
+{{two parameter weibull distribution}}
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-<br><math> f(T)={ \frac{\beta }{\eta }}\left( {\frac{T}{\eta }}\right) ^{\beta -1}e^{-\left( { \frac{T}{\eta }}\right) ^{\beta }} \,\!</math>
-<br>Beta is the shape parameter or slope. Values less than one incicate a decreasing failure rate, greater then one an increasing failure rate, and when one a constant failure rate. Eta is the scale parameter, or characteristic life.  Eta represents the time by which 63.2% of the units fail.<br>
-<br><math> \beta= </math> shape parameter (or slope).
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 | align="center" valign="middle" | [http://www.reliawiki.com/index.php/The_Weibull_Distribution The Weibull Distribution]