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Education > Statistics > Weibull Failure...
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Weibull Failure Probability after time has passed

by jbarmor3@[EMAIL PROTECTED] Apr 18, 2008 at 01:07 PM

I have a component with a 2 parameter Weibull distribution and an
increasing failure rate.  I have a population of these components with
a variable amount of time ac***ulated.

I have a failure threshold which I am not allowed to exceed going
forward.

Given the particular time of a specific component and the Weibull
distribution of its failure rate,  how do I determine the amount of
time that I can continue to use the component before the probability
that it fails exceeds my threshold.

If they had no time ac***ulated,  I know I could just look at the CDF
and determine how long the component could be used before it exceeded
the threshold.  However knowing that each specific component hasnt
failed up to a given time,  how do I figure out how much longer each
one will be "good"?

Sample numbers
k = 1.5
lambda = 84000
acceptable threshold = 7e-3
current time = 3000
 




 1 Posts in Topic:
Weibull Failure Probability after time has passed
jbarmor3@[EMAIL PROTECTED  2008-04-18 13:07:34 

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tan12V112 Thu Jul 24 2:51:01 CDT 2008.