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Reliability Distributions |
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Reliability Distributions |
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Reliability Distributions
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Reliability Distributions |
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Reliability Distributions |
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The following table lists the probability distributions and associated reliability functions used in computing reliability of a single RBD block.
Distribution |
Reliability Function R(t) = 1 - F(t) |
Probability Density Function f(t) |
Parameters |
|---|---|---|---|
Exponential |
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Weibull |
|
|
a > 0; b > 0 |
Normal |
|
|
- < μ <; σ > 0 |
Log normal |
|
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- < μ <; σ > 0 |
Erlang |
|
|
λ > 0; κ - positive integer |
Time-independent |
1-Ur |
|
0 Ur 1 |
Constant |
0 for t>=Τ0 1 for t<Τ0 |
|
Τ0>0 |
Uniform |
|
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0 a < b |
