منابع مشابه
Hierarchical production planning with demand constraints
This paper explores the hierarchical production planning (HPP) problem of flexible automated workshops (FAWs), each of which has a number of flexible manufacturing systems (FMSs). The objective is to decompose medium-term production plans (assigned to an FAW by ERP/MRP II) into short-term production plans (to be executed by FMSs in the FAW) so as to minimize cost on the condition that demands h...
متن کاملHierarchical Integration of Production Planning And
This paper describes the development of a hierarchical planning and scheduling system for a multiple plant, multiple product, seasonal demand situation. In this hierarchical structure, optimal decisions at an aggregate level (planning) provide constraints for detailed decision making (scheduling). Four levels of decision making are used: first, products are assigned to plants (using mixed-integ...
متن کاملA Hierarchical Production Planning System Simulator
This research develops and demonstrates a Hierarchical Production Planning System Simulator (HPPSS) for the analysis of feedback-and-control mechanisms between linear programming models at two levels within a Hierarchical Production Planning (HPP) system. This work focuses on planning levels dealing with tactical decisions. Three areas distinguish it from prior research. First, the HPPSS allows...
متن کاملCoordinated Planning of Preventive Maintenance in Hierarchical Production Systems
We consider a technical system consisting of multiple different components, which are all subject to failure. Creating an occasion for preventive maintenance on one of these components requires a collection of preparatory set-up activities to be carried out in advance, with corresponding set-up costs. Since different components may require one or more shared set-up activities, there is a perspe...
متن کاملOptimization for Hierarchical Production Planning of Industrial Processes
In this paper, a generalized mathematical model formulation for cellular manufacturing system (CMS) using hierarchical production planning (HPP) approach is proposed. The model is applied to two different real case studies and is solved by using operation research optimization software (Lingo (12.0) program). The model is divided into three main steps as follows: data collection, mathematical m...
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ژورنال
عنوان ژورنال: International Journal of Clothing Science and Technology
سال: 1993
ISSN: 0955-6222
DOI: 10.1108/eb003018