Research Article
Optimization Problems of Costs in a MultiState System with Imperfect Maintenance
Table 5
Optimal values for
s and
v and corresponding optimal costs
.
| | DLFRD(α, β) | DRD(β) | DWD(β, γ) | DMWD(α, β, γ) | α = 0.01 β = 5.4 10−3 | β = 8.6 10−3 | β = 8.39 10−4 γ = 3 | α = 0.03 β = 4.76 10−4 γ = 3 |
| | | | | | δ = 0.5 | s = 1 v = 8 = 0.3755 | s = 1 v = 6 = 0.3675 | s = 1 v = 5 = 0.3009 | s = 1 v = 6 = 0.3331 | δ = 1 | s = 1 v = 7 = 0.3724 | s = 1 v = 6 = 0.3626 | s = 1 v = 5 = 0.2938 | s = 1 v = 6 = 0.3281 | δ = 2 | s = 4 v = 1 = 0.3461 | s = 4 v = 1 = 0.3508 | s = 3 v = 1 = 0.2661 | s = 4 v = 1 = 0.2963 | δ = 1/8 | s = 1 v = 8 = 0.3776 | s = 1 v = 6 = 0.3714 | s = 1 v = 5 = 0.3064 | s = 1 v = 7 = 0.3363 | δ = 8 | s = 2 v = 1 = 0.1772 | s = 1 v = 1 = 0.1328 | s = 2 v = 1 = 0.0534 | s = 2 v = 1 = 0.1227 |
| | | | | | δ = 0.5 | s = 1 v = 9 = 0.2886 | s = 1 v = 7 = 0.2936 | s = 1 v = 6 = 0.2572 | s = 1 v = 7 = 0.2687 | δ = 1 | s = 1 v = 9 = 0.2864 | s = 1 v = 7 = 0.2899 | s = 1 v = 6 = 0.2522 | s = 1 v = 7 = 0.2650 | δ = 2 | s = 5 v = 1 = 0.2666 | s = 4 v = 1 = 0.2735 | s = 4 v = 1 = 0.2214 | s = 5 v = 1 = 0.2336 | δ = 1/8 | s = 1 v = 10 = 0.2902 | s = 1 v = 8 = 0.2959 | s = 1 v = 6 = 0.2610 | s = 1 v = 8 = 0.2711 | δ = 8 | s = 2 v = 1 = 0.1200 | s = 2 v = 1 = 0.0914 | s = 2 v = 1 = 0.0374 | s = 2 v = 1 = 0.0837 |
| | | | | | δ = 0.5 | s = 1 v = 13 = 0.1875 | s = 1 v = 11 = 0.2010 | s = 1 v = 8 = 0.1985 | s = 1 v = 10 = 0.1916 | δ = 1 | s = 1 v = 13 = 0.1864 | s = 1 v = 10 = 0.1993 | s = 1 v = 8 = 0.1957 | s = 1 v = 9 = 0.1895 | δ = 2 | s = 7 v = 1 = 0.1636 | s = 6 v = 1 = 0.1776 | s = 5 v = 1 = 0.1632 | s = 6 v = 1 = 0.1566 | δ = 1/8 | s = 1 v = 14 = 0.1883 | s = 1 v = 11 = 0.2021 | s = 1 v = 8 = 0.2006 | s = 1 v = 10 = 0.1930 | δ = 8 | s = 2 v = 1 = 0.0628 | s = 2 v = 1 = 0.0485 | s = 2 v = 1 = 0.0215 | s = 2 v = 1 = 0.0446 |
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