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JSIR Vol.66 [2007] >
JSIR Vol.66(09) [September 2007] >
| Title: | Determining a production run time for an imperfect production-inventory system with scrap |
| Authors: | Lin, Gary C
Lin, Hong-Dar |
| Keywords: | Inventory
Stochastic processes |
| Issue Date: | Sep-2007 |
| Publisher: | CSIR |
| Abstract: | A production-inventory model is proposed for a manufacturing process used to produce a single product in batches to
meet a deterministic demand. The process is assumed to be in-control at the start of a production run. Then, the process may
shift to an out-of-control state at a random point in time, and a fixed portion of items produced is defective. These defective
items cannot be repaired or reworked and must be scrapped with an additional cost. Models are proposed to deal with
situations regarding whether and when a screening process is implemented. The objective is to determine an optimal production
run time that minimizes expected (long-run) average cost per unit of time including setup, production, inventory holding,
screening, and defective costs. A numerical approach is developed for finding an optimal solution. A closed-form solution, which
is derived based on an approximation to an exponential function, is also given. |
| Page(s): | 724-735 |
| ISSN: | 0022-4456 |
| Source: | JSIR Vol.66(09) [September 2007]
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