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Improving the Efficiency of Automobile production lines by Using Network Data Envelopment Analysis and Modeling | ||
Journal of New Researches in Mathematics | ||
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 12 بهمن 1401 | ||
نوع مقاله: research paper | ||
شناسه دیجیتال (DOI): 10.30495/jnrm.2023.68134.2288 | ||
نویسندگان | ||
مهدی کمیجانی1؛ Amir Gholam Abri 2؛ نقی شجاع3؛ احمد شایان نیا4 | ||
1Department of industrial management, Firoozkooh branch, Islamic azad university, Firoozkooh, Iran | ||
2گروه ریاضی، واحد فیروزکوه، دانشگاه آزاد اسلامی، فیروزکوه، ایران | ||
3Department of mathematics, Firoozkooh branch, Islamic azad university, Firoozkooh, Iran, | ||
4Department of industrial management, Firoozkooh branch, Islamic azad university, Firoozkooh, Iran, | ||
چکیده | ||
Improving the efficiency of production lines is of particular importance due to market demand and economic constraints. In this research, Network Data Envelopment Analysis with undesirable factors has been used as the main method to analyze automobile industry and evaluate the efficiency in 5 production lines. At first, the efficiency of the production lines is calculated.Then, the reference set as the most efficient DMUs making the models will be obtained and so,as the model, cleared which factors of inefficient unit is modeled based on the efficient unit to increase their efficiency. Finally, the necessary matters to change the amount of components are presented in the reference set. The results obtained represens that the unit of efficiency in production line E is more efficient than the other lines. The main reasons of the inefficiency in production lines are poor access rate of the defects reported to after-sales service network at the first quarter after car delivery, the access rate of customer protection, quality defects, repairs and rework, operator skill, inventory under repair and the average V1 + V2 for the supplier. | ||
کلیدواژهها | ||
Network Data Envelopment Analysis؛ Efficiency؛ Modeling؛ Performance Evaluation؛ Productivity | ||
آمار تعداد مشاهده مقاله: 115 |