Abstract
Errors in steady-state availability estimation by 2-state models of one-unit systems which can be represented by 3-state Markovian models are evaluated. It is found that, except for very specific cases, the 2-state models result in unacceptably large error for the case in which degraded systems are not repaired; hence, multistate models should be used. On the other hand, the 2-state models can present a reasonable accuracy for the cases in which degraded systems are repaired. It is recommended that analyst select better models (2-state or 3-state models) by first estimating the model errors as well as the error due to data uncertainty.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 223-235 |
| Number of pages | 13 |
| Journal | Reliability Engineering |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1987 |
Bibliographical note
Funding Information:This work was supported by the Office of Magnetic Fusion in the U.S. Department of Energy.
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