This paper addresses two NP-hard and strongly related problems in production planning of flexible manufacturing system (FMS), part type selection problem and machine loading problem. Various flexibilities such as alternative machines, tools, and production plans are considered. Real coded genetic algorithms (RCGA) that uses an array of real numbers as chromosome representation is developed to h...

This paper focuses on studying and proposes deadlocks are an obstacle in the flexible manufacturing system (FMS) of Petri nets (PNs) since their occurrence will influence partial or whole model to stop working. Due its structural characteristic, net is essential tool overcome problem. The place invariant (PI) associated with control algorithm obtain maximally permissive by forbidding popular re...

The Dutch institute of applied physics of TN0 and the Institute of Metals TN0 (Apeldoorn) have installed a flexible manufacturing system (FMS). The main components of this FA4S are a turret lathe, a machining centre and a transport system. One of the objectives of this system is to produce a wide variety of parts in small batches. Several interesting (short term) planning and scheduling problem...

There has been some uncertainty concerning the conditions under which a manufacturing system may be termed 'flexible'. To clarify this confusion eight types of flexibilities are defined and described. A FLEXIBLE Manufacturing System (FMS) is an integrated, computer-controlled complex of automated material handling devices and numerically controlled (NC) machine tools that can simultaneously pro...

The flexible manufacturing system (FMS) facility layout problem (FLP) involves the positioning of cells within a given area so as to minimize the material flow costs between cells. The FLP design includes specifying the spatial coordinates of each cell, the orientation of each cell in either a horizontal or vertical position, and the position of each cell’s pickup and dropoff points. The layout...

Flexible Manufacturing System (FMS), which is equipped with several CNC machines and Automated Guided Vehicle (AGV) based material handling system is designed and implemented to gain the flexibility and efficiency of production. After the implementation of FMS, in practice, the scheduling of the resources, such as frequent variation in the parts, tools, AGV routings, becomes a complex task. Thi...

For reasons well known, change has always been uncomfortable to business systems. There is some resistance and resentment whenever changes are made in the existing set-up more so in the case of technological change. New technologies have often brought structural changes to the business systems, which affect their cultural complexion as well. In recent years, there has been a stream of new innov...

Rapid prototyping of complex systems and their control strategies is an important approach in system modeling, especially in early desing stages. Naturally, these systems can be seen as a network of concurrently running communicating objects. A practical application field are flexible manufacturing systems (FMS) used in computer integrated manufacturing (CIM). A FMS consists of concurrently wor...

This paper presents the results of a simulation study of a typical flexible manufacturing system (FMS) that has routing flexibility. The objective in this study is to test the effectiveness of the modified dissimilarity maximization method (modified DMM) for real time FMS scheduling. modified DMM method is an improvement of the DMM method. Modified DMM method is an alternative process plan sele...

We describe a case study of the design and verification of a parallel image processing unit based on an extended Petri net, which is called a Logical Colored Petri net (LCPN). This is suitable for Flexible-Manufacturing System (FMS) modeling and discussion of structural properties. LCPN is another family of colored p/t-net (CPN) with the addition of the following features: integer value assignm...