Optimal Relief Order Quantity under Stochastic Demand and Lead-time | ||
| Journal of Quality Engineering and Production Optimization | ||
| مقاله 3، دوره 4، شماره 2، مرداد 2019، صفحه 31-48 اصل مقاله (802.67 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22070/jqepo.2020.3911.1092 | ||
| نویسندگان | ||
| kamran karimi movahed* 1؛ Ali Ghodrat Nama* 1؛ Zhihai Zhang2 | ||
| 1Industrial Engineering, Kharazmi University, Tehran, Iran | ||
| 2Department of Industrial Engineering, Tsinghua University, Beijing, China | ||
| چکیده | ||
| In this paper, a newsboy model is developed under uniformly distributed lead-time and demand that is an appropriate assumption in obtaining optimal relief inventory of humanitarian disasters. It is noteworthy that limited historical data are in hand on relief operations. Hence, analytical and approximate solutions for optimal relief order quantity were derived. The effect of lead-time uncertainty on the optimal solution was analytically tested. The approximate solution was numerically evaluated and proper agreement with analytical data was achieved with a low variation coefficient of lead-time. The analytical results showed that lead-time uncertainty might increase or decrease relief order quantity, depending on the variation coefficient of lead-time. | ||
| کلیدواژهها | ||
| Newsboy problem؛ Order quantity؛ Stochastic demand؛ Stochastic lead-time | ||
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آمار تعداد مشاهده مقاله: 240 تعداد دریافت فایل اصل مقاله: 191 |
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