Table 4 Optimal \(T^{*}\) and \(J\left( {T^{*} } \right)\) for different values of \(\xi\)
From: Selecting statistical model and optimum maintenance policy: a case study of hydraulic pump
Model | Optimal values | Additional cost | |||
|---|---|---|---|---|---|
\(\xi\) = 70,000 | \(\xi\) = 90,000 | \(\xi\) = 110,000 | \(\xi\) = 130,000 | ||
Threefold Weibull | \(T^{*}\) | 14,631 | 14,484 | 14,377 | 14,295 |
\(J\left( {T^{*} } \right)\;\) | 10.40593 | 11.43373 | 12.45314 | 13.46734 | |
Weibull–Normal–Exponential | \(T^{*}\) | 14,468 | 14,361 | 14,286 | 14,230 |
\(J\left( {T^{*} } \right)\;\) | 10.33359 | 11.33318 | 12.3265 | 13.31607 | |
Normal–Lognormal–Weibull | \(T^{*}\) | 14,476 | 14,368 | 14,291 | 14,234 |
\(J\left( {T^{*} } \right)\;\) | 10.32712 | 11.32669 | 12.31991 | 13.30929 | |