کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5080073 1477557 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lot sizing and lead time decisions in production/inventory systems
ترجمه فارسی عنوان
تصمیم گیری درمورد زمان بندی و تصمیم گیری درمورد سیستم های تولید / انبار
کلمات کلیدی
سیستم تولید / موجودی تعداد زیادی اندازه، تجزیه و تحلیل زنجیره مارکوف،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
Traditionally, lot sizing decisions in inventory management trade-off the cost of placing orders against the cost of holding inventory. However, when these lot sizes are to be produced in a finite capacity production/inventory system, the lot size has an important impact on the lead times, which in turn determine inventory levels (and costs). In this paper we study the lot sizing decision in a production/inventory setting, where lead times are determined by a queueing model that is linked endogenously to the orders placed by the inventory model. Assuming a continuous review (s, S) inventory policy, we develop a procedure to obtain the distribution of lead times and the distribution of inventory levels, when lead times are endogenously determined by the inventory model. This procedure allows to determine the optimal inventory parameters within the class of (s, S) policies that minimize the expected ordering and inventory related costs over time. We numerically show that ignoring the endogeneity of lead times may lead to inappropriate lot sizing decisions and significantly higher costs. This cost discrepancy is very outspoken if the lot size based on the economic order quantity deviates significantly from desirable production lot sizes. In these cases, the endogenous treatment of lead times is of particular importance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Production Economics - Volume 155, September 2014, Pages 351-360
نویسندگان
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