1-Parameter Weibull Example

From ReliaWiki
Revision as of 21:57, 2 April 2012 by Nicolette Young (talk | contribs) (Created page with '{| class="FCK__ShowTableBorders" border="0" cellspacing="0" cellpadding="0" align="center"; style="width:100%;" |- | valign="middle" align="left" bgcolor=EEEDF7|[[Image:Weibull-E…')
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Weibull-Examples-banner.png

Example: Weibull++ Standard Folio Data 1P-Weibull

Six prototypes of a system were tested. The failure times are 16, 34, 53, 75, 93 and 120. Due to the small sample size, 1P-Weibull is chosen to model the data. According to previous similar products, the slope parameter [math]\displaystyle{ \beta }[/math] is set to 1.5. Choose the 1P-Weibull distribution in Weibull++ and calculate it, the results are given below.

Solution

  • Estimated model parameters:
1P Weibull Parameters.png
  • Probability plot:
1P Weibull PPlot.png
  • Use QCP to predict reliability:
1P Weibull QCP.png

The above Figure shows the reliability at 15 hours is 0.9054, and its two-sided confidence bounds at confidence level of 90% are 0.7619 and 0.9644.