توضیحات
ABSTRACT
This study describes the application of the developed model to the scheduling of the Robotic Flexible Assembly Cells (RFACs). The present study is a continuation of the paper titled “Development of a FuzzySimulation Model of Scheduling Robotic Flexible Assembly Cells”. This new model for multi-objective scheduling problems in RFACs was based on combining a fuzzy-based mathematical model with simulation software tools. In this study, a hypothetical case study of RFACs is presented to demonstrate the effectiveness of the developed model and then compare the results that are obtained by the new methodology with the common scheduling rules. The simulation results show that the performance of the proposed methodology outperforms the most popular scheduling rules from previous research.
INTRODUCTION
Due to increasing competition in the developing global economy, today’s companies are facing greater challenge than ever to employ Flexible Manufacturing Systems (FMS) capable of dealing with unexpected events and meeting customers’ requirements. Therefore, FMSs have attracted significant attention by both researchers and industrial practitioners in recent years. One class of such systems is called Robotic Flexible Assembly Cells (RFACs). RFACs is an integrated system, includes at least two of robotic assembly stations linked by an automated material handling system, all controlled by a central computer (Mohamed et al., 2001; Nof and Chen, 2003). The design of RFACs with more than one robot offers many advantages. For example, efficiency due to a reduced work environment (Mohamed et al., 2001), increases robustness enabling the assembly of a variety of products using the same resources and flexibility due to superior ease of modification and reconfiguring (Marian et al., 2003). Accordingly, employing multi-robots in the RFACs offers the advantage of increased productivity in a shorter cycle time with lower production costs (Xidias et al., 2010). Nevertheless, two robots (or more) operating simultaneously in the same work environment require a complex scheduling policy to prevent collisions between robots and other equipment in the cell (Nof and Chen, 2003). To overcome the difficulties, efficient scheduling of RFACs is required. As mentioned in the previous work presented in paper titled “Development of a New Model of Scheduling Robotic Flexible Assembly Cells”, The objective was to propose a new intelligent model of scheduling RFACs in a multi- product assembly environment, using fuzzy logic and simulation software.
Year: 2013
Publisher : Science Publications
By : Khalid Abd, Kazem Abhary and Romeo Marian
File Information: English Language/ 9 Page / size: 258 KB
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سال : 2013
ناشر : Science Publications
کاری از : Khalid Abd, Kazem Abhary and Romeo Marian
اطلاعات فایل : زبان انگلیسی / 9 صفحه / حجم : KB 258
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