ارائه یک مدل برنامه‌ریزی ریاضی جدید برای تخصیص مکان‌های انبارش در سیستم ذخیره و بازیابی اتوماتیک تحت شرایط عدم قطعیت تقاضا و حل آن با یک روش بهینه‌سازی استوار؛ (مطالعه موردی: انبار شرکت ایران‌خودرو)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار گروه مهندسی صنایع، دانشکدۀ مهندسی صنایع، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران، ایران

2 دکترای مهندسی صنایع، دانشکدۀ مهندسی صنایع، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران، ایران

3 دانشیار گروه مهندسی مکانیک، دانشکدۀ فنی، واحد تهران جنوب، دانشگاه آزاد اسلامی تهران، تهران، ایران

4 استاد دانشکدۀ مهندسی صنایع، دانشکدگان فنی، دانشگاه تهران، تهران، ایران

5 استادیار گروه مهندسی صنایع، دانشکدۀ فنی و مهندسی، واحد رباط کریم، دانشگاه آزاد اسلامی، رباط کریم، ایران

چکیده

در این تحقیق، براساس شرایط و محدودیت‌های انبار اتوماتیک شرکت ایران‌خودرو یک مدل برنامه‌ریزی ریاضی سه‌هدفه غیرخطی پیشنهاد شده که هدف این مدل، تخصیص بهینه پالت‌ها به مکان‌های انبارش ازپیش تعیین شده، با یک شاخص جدید می‌باشد. ازآنجا که تقاضای پالت‌های انبار به‌دلیل نوسان تقاضای مشتریان از عدم قطعیت بالایی برخوردار می‌باشد، به استوار نمودن مدل ریاضی به روش P-Robustness جهت مقابله با تأثیر تغییر تقاضا بر حل بهینه پرداخته شده است و پس از آن مسأله به یک مدل ریاضی تک‌هدفه تبدیل می‌شود که برای حل آن در ابعاد بزرگ از دو الگوریتم فراابتکاری ژنتیک و شبیه‌سازی تبرید استفاده شده است. جهت بررسی عملکرد دو الگوریتم از آزمون تی در نرم‌افزار مینی‌تب به‌منظور مقایسه میانگین مقادیر تابع هدف از 15 بار حل مسائل عددی در ابعاد مختلف بهره گرفته شده است. معرفی یک شاخص جدید برای تخصیص بهتر پالت‌ها به محل‌های ذخیره‌سازی در انبار اتوماتیک ایران‌خودرو موجب کاهش مسافت، زمان، انرژی و هزینه‌های ذخیره و بازیابی و جابجایی شده که با توجه به حجم بالای گردش قطعات در انبار، می‌توان نتیجه گرفت که صرفه‌جویی قابل‌توجهی حاصل شده است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Presenting a New Mathematical Programming Model for the Storage Locations Assignment in the Automated Storage and Retrieval System Under the Conditions of Demand Uncertainty and Solving it with a Robust Optimization Method; (Case Study: Iran Khodro Warehouse)

نویسندگان [English]

  • Amir Abbas Shojaie 1
  • Keyvan Roshan 2
  • Mehrdad Javadi 3
  • Reza Tavakkoli-Moghaddam 4
  • Mohammad Reza Khalaj 5
1 Associate Professor, Department of Industrial Engineering, Faculty of Industrial Engineering, Tehran South Branch, Islamic Azad University, Tehran, Iran
2 PhD in Industrial Engineering, Faculty of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
3 Associate Professor, Department of Mechanical Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University of Tehran, Tehran, Iran
4 Professor, School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran
5 Assistant Professor, Department of Industrial Engineering, Faculty of Technology and Engineering, Rabat Karim Branch, Islamic Azad University, Robat Karim, Iran
چکیده [English]

In this research, based on the conditions and limitations of Iran Khodro's automatic warehouse, a non-linear three-objective mathematical programming model is proposed. Since the demand for warehouse pallets has high uncertainty due to the fluctuation of customer demand, the mathematical model has been based on the P-Robustness method to deal with the effect of changing demand on the optimal solution, and then the problem is converted to a single-objective mathematical model. It turns out that two meta-heuristic algorithms e.g., genetic algorithm and simulated annealing algorithm have been used to solve it in large scales. To check the performance of the two algorithms, the T-test in Minitab software was used to compare the average values of the objective function from 15 times solving numerical problems in different dimensions. Introducing a new index for better allocation of pallets to storage locations in Iran Khodro's automatic warehouse has reduced the distance, time, energy, and costs of storage retrieval and handling, which due to the high turnover of parts in the warehouse, can be concluded that significant savings have been achieved

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  • Automated Storage and Retrieval System (AS/RS)
  • Class-Based Storage
  • Storage Location Assignment Policy
  • Cube Per Order Index (COI)
  • Uncertainty
  • Robust Optimization
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