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| Titel: |
Some Aspects of Optimal Design |
| Auteur: |
Kabak, Irwin W. |
| Verschenen in: |
IIE transactions |
| Paginering: | Jaargang 1 (1969) nr. 4 pagina's 371-374 |
| Jaar: |
1969-12-01 |
| Inhoud: |
The steady-state availability for a system with mean uptime of U and mean downtime of D is known to be U/(U+D). When U is much larger than D, the availability is often approximated by 1-D/U. The downtime is the complement of the availability and is approximated by D/U. In this article, we consider a system where the cost of equipment that is designed to have a mean uptime of U is K1 Ua, where K1 and a are positive constants. The cost of equipment that is designed to have a mean downtime of D is K2Db, where k2 is a positive constant and b is a negative constant. The downtime costs are assumed to be proportional to the downtime and are equal to K3DU-1 The total system cost is thus equa C = K1Ua+K2Db+K3DU-1 Optimal values of U and D are determined for the variable(s) subject to control. In addition, the sensitivity of the optimal values are investigated, using both theoretical and numerical approaches. Illustrative examples are also included. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 12 van 13 gevonden artikelen
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