نتایج جستجو برای: flexible manufacturing system fms
تعداد نتایج: 2375299 فیلتر نتایج به سال:
The quality consistence and machines’ utilization of a flexible manufacturing system (FMS) strongly depend on the statistical process control (SPC) and the correct fault diagnosis of equipments. An FMS can be modeled by the Colored Timed Petri Net (CTPN). However, the CTPN models of most FMSs lack the activities of the statistical process control (SPC) and fault diagnosis, and they lead to the ...
The main objective of this paper is to study the Distributed Scheduling (DS) problems in Flexible Manufacturing System (FMS) environment using simulation model. This FMS is assumed to be single factory and multi factory which are analyzed by production capacity, throughput, utilization and work-in-process (WIP) by considering scheduling rules. The rules which are includes Largest processing tim...
Today's mass production strategies are unable to cope with the present needs of the manufacturing industry, which is constantly confronted with changing and increasingly complex product requirements as well as mounting pressure to decrease costs. To meet this challenge, Flexible Manufacturing Systems (FMS) must become more robust, scalable, reconfigurable, dynamic, adaptable and even more flexi...
This chapter outlines an intelligent fuzzy multi-criteria decision-making (MCDM) model for appropriate selection of a flexible manufacturing system (FMS) in a conflicting criteria environment. A holistic methodology has been developed for finding out the “optimal FMS” from a set of candidate-FMSs. This method of trade-offs among various parameters, viz., design parameters, economic consideratio...
This Chapter outlines an intelligent fuzzy-MCDM model for appropriate selection of Flexible Manufacturing System (FMS) in conflicting criteria environment. A holistic methodology has been developed for finding out the “optimal FMS” from a set of candidate-FMSs. This method trade-offs among various parameters, viz., design parameters, economic considerations, etc., affecting the FMS selection pr...
For responsiveness, in the Petri nets theory framework deadlock prevention policies based elementary siphons control are often utilized to deal with deadlocks caused by the sharing of resources in flexible manufacturing system (FMS) which is developing the theory of efficient strict minimal siphons of an S3PR. Analyzer of Petri net models and their P-invariant analysis, and deadlock control are...
Performance evaluation for systems of pooled machines of unequal sizes: Unbalancing versus balancing
This research explores the appropriateness of unbalancing the workload per machine in certain types of flexible manufacturing systems (FMSs) configured as pooled machines of unequal sizes. Studies are conducted to examine the applicability of following an objective to unbalance workloads when solving the FMS planning problems of selecting part types to be machined together and determining their...
In order to adapt to a rapid changes of manufacturing orders, flexible manufacturing systems (FMS) advances into the direction that machines become further versatile functionally and that tools are controlled by fast tool delivery device. Versatile machine can perform a variety of operations when it is supplied with the required tools. Tool management is among the essential elements in the succ...
The cost to feed parts to a robot for either machine loading or assembly in a flexible manufacturing system (FMS) has often been underestimated. A recent survey on part-feeding methods applicable to a board class of flexible manufacturing systems has indicated that part-feeding may comprise two-thirds of the overall investment and are usually the source of a large percentage of work stoppage an...
This paper presents deadlock prevention are use to solve the deadlock problem of flexible manufacturing systems (FMS). Petri nets have been successfully as one of the most powerful tools for modeling of FMS. Their modeling power and a mathematical arsenal supporting the analysis of the modeled systems stimulate the increasing interest in Petri nets. With the structural object of Petri nets, sip...
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