A study on production lot-sizing in MRP system. (2nd report. Multi-item lot-sizing by group technology).
نویسندگان
چکیده
منابع مشابه
Lot-sizing and flow production in an MRP-environment
In the paper methods are developed to analyze a production process for professional equipment with advanced electronic and mechanical features. The starting point of the analysis is to find ways for production control and production organization which maintain and even strenghten the advantages of the MRP-system. but also mend the disadvantages to a large extent. The main advantages which could...
متن کاملMULTI - ITEM LOT - SIZING with a JOINT SET - UP COST
We consider a multi-item lot-sizing problem in which there are demands, and unit production and storage costs. In addition production of any mix of items is measured in batches of fixed size, and there is a fixed set-up cost per batch in each period. Suppose that the unit production costs are constant over time, the storage costs are nonnegative, and for any two items the one that has a higher ...
متن کاملErgo-Lot-Sizing: Considering Ergonomics in Lot-Sizing Decisions
One aspect that has mostly been overlooked in traditional economic lot-sizing is the implication of decisions on manual tasks and workload. Although lot-sizing decisions can have a significant impact on required manual material handling and on human performance, works that consider ergonomic aspects in lot-sizing are rare. This paper presents a model that integrates ergonomic aspect in terms of...
متن کاملRelaxations for Two - Level Multi - Item Lot - Sizing Problem
We consider several variants of the two-level lot-sizing problem with one item at the upper level facing dependent demand, and multiple items or clients at the lower level, facing independent demands. We first show that under a natural cost assumption, it is sufficient to optimize over a stock-dominant relaxation. We further study the polyhedral structure of a strong relaxation of this problem ...
متن کاملMulti-item dynamic lot-sizing with delayed transportation policy
We optimize ordering and inbound shipment decisions for a manufacturer that sources multiple items from a single supplier. The objective is to satisfy the requirements in the production plan with minimum transportation and inventory holding costs over a multi-period planning horizon. Transportation costs are charged to the manufacturer on a per truck shipment basis. We investigate the option of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C
سال: 1988
ISSN: 0387-5024,1884-8354
DOI: 10.1299/kikaic.54.2806