In this paper, we present a simulated annealing (SA) and a genetic algorithm (GA) based on heuristics for scheduling problem of jobs in virtual cellular manufacturing systems. A virtual manufacturing cell (VMC) is a group of resources that is dedicated to the manufacturing of a part family. Although this grouping is not reflected in the physical structure of the manufacturing system, but machin...

In recent years, Many manufacturing industries for promoting their efficiency have tended to use the automatic manufacturing systems. Expanding automatic systems and to increase their complexity are representing the necessity of studying a proper functional quality and using reliable equipment in such systems more than ever. In this direction, the technique of fault tree analysis (FTA), along w...

Layout design and the flow of materials have a significant impact on performance of manufacturing system (garments industry) .These can help to increase productivity, reduce work in process and inventory, short production lead time, streamlines the flow of materials, cost and reduce non value added activities from the production process of waiting and transportation, which make the factory meet...

In this research paper cellular manufacturing is discussed under conditions of changing product demand. Traditional cell formation procedures ignore any changes in demand over time from product redesign and other factors. However given that in today‟s business environment, product life cycles are short, a framework is proposed that creates a multi-period cellular layout plan including cell rede...

The emergence of Cellular Manufacturing Systems has resulted in signific ant productivity improvement in manufacturing systems. The Cellular Manufacturing System has received wide attention and is well documented in the literature. This study demonstrates the use of Decision Support Systems (DSS) to cellular manufacturing.

Virtual Cellular Manufacturing Systems (VCMSs) are based on a highly flexible manufacturing concept designed to improve the performance of classical Cellular Manufacturing Systems (CMSs) and job shop manufacturing environments by creating virtual grouping of the resources temporarily in the production planning and control system. In an environment with fluctuating demand and unpredictable parts...

Today’s business environment has forced manufacturers and plants to produce high-quality products at low cost and the shortest possible delivery time. To cope with this challenge, manufacturing organizations need to optimize the manufacturing and other functions that are in logical association with each other. Therefore, manufacturing system design and supplier selection process are linked toge...

Assembly plays an important role in any production system as it constitutes a significant portion of the lead time and cost of a product. Virtual computer-integrated manufacturing (VCIM) system is a modern production system being conceptually developed to extend the application of traditional computer-integrated manufacturing (CIM) system to global level. Assembly scheduling in VCIM systems is ...