Nowadays most of manufacturing firms in accordance with continuous changes in the market and the today’s competitiveness world are competing for meeting demand, increasing quality and decreasing costs. For reaching these goals, it is necessary to select a suitable flexible manufacturing system (FMS) for the most of manufactures. The aim of this paper is applying a method for evaluating the flex...

Material handling tasks in the job shops have to be coordinated with manufacturing operations in order to efficiently utilize the production resources and to reduce the accumulation of work-in-process inventory. This paper extends the traditional job shop scheduling problem by incorporating the scheduling of the material handling tasks. It provides a generic definition and a network model for t...

dynamic cellular manufacturing systems,   mixed-integer non-linear programming,   production planning, manufacturing attributes   this paper presents a novel mixed-integer non-linear programming model for the design of a dynamic cellular manufacturing system (dcms) based on production planning (pp) decisions and several manufacturing attributes. such an integrated dcms model with an extensive c...

Among all kinds of possible faults in a manufacturing system, operational faults occur most often (about 70%). Efficient diagnosis of these faults is critical for improving the availability and productivity of the manufacturing system. This paper presents a hierarchical diagnosis model based on fault tree analysis and two other diagnosis models respectively based on the logic and sequential con...

Agile and lean manufacturing are the trendy buzz-words among manufacturers today. Lowvolume high-variety product series have radically changed the conditions for manufacturing systems. To handle the new challenges and continuously optimize production flow, new requirements for flexible manufacturing systems have been introduced. Moving away from dedicated hardware and mass production additional...

Multi-objective layout optimization methods for the conceptual design of robot cellular manufacturing systems are proposed in this paper. Robot cellular manufacturing systems utilize one or more flexible robots which can carry out a large number of operations, and can conduct flexible assemble processes. The layout design stage of such manufacturing systems is especially important since fundame...

In today’s very competitive, dynamic and unpredictable manufacturing environments it is critical to improve manufacturing performance in order to be able to compete. Flexibility becomes an important characteristic of manufacturing systems and organizations; thus the flexible manufacturing systems (FMS’s) are becoming popular in today’s scenario. A flexible manufacturing system (FMS) incorporate...

Flexible Manufacturing Systems (FMS) are essential for small/medium batch and job shop manufacturing. These types of production systems are used to manufacture a considerable variety of products with medium/small production volumes. Therefore, the manufacturing platforms supporting these types of production must be flexible and organized in Flexible Manufacturing Cells (FMC). Programming FMC's ...

Tendency to optimization in last decades has resulted in creating multi-product manufacturing systems. Production planning in such systems is difficult, because optimal production volume that is calculated must be consistent with limitation of production system. Hence, integration has been proposed to decide about these problems concurrently. Main problem in integration is how we can relate pro...

This paper deals with the transient analysis of manufacturing systems in the presence of failures and repairs. The exact model is decomposed into 1) a structure state process, modeling the failure and repair events which occur at a slower time scale, and 2) a performance model, modeling the part processing and material movement events occurring at a faster time scale. The solutions of these two...