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ارزیابی یک مدل یکپارچه مکانیابی- موجودی تسهیلات با رویکرد آزادسازی لاگرانژ همراه با مطالعه موردی در صنعت کالاهای تندمصرف | ||
مدیریت زنجیره تأمین | ||
دوره 23، شماره 71، شهریور 1400، صفحه 79-91 اصل مقاله (672.06 K) | ||
نوع مقاله: پژوهشی | ||
نویسندگان | ||
غلامرضا نصیری* 1؛ اکبر نمازی تجرق2؛ حمید داوودپور3 | ||
1گروه مهندسی صنایع- دانشکده فنی و مهندسی - دانشگاه الزهرا | ||
2پژوهشگاه نیرو ،تهران-ایران | ||
3دانشکده مهندسی صنایع و سیستمهای مدیریت، دانشگاه صنعتی امیرکبیر، تهران، ایران | ||
تاریخ دریافت: 12 مرداد 1400، تاریخ بازنگری: 24 دی 1400، تاریخ پذیرش: 15 آبان 1400 | ||
چکیده | ||
مدیریت زنجیره تأمین و طراحی شبکه توزیع در سالهای اخیر مورد توجه بسیاری از محققان قرار گرفته است. این مقاله به مطالعه سیستم چند محصولی مسئله مکانیابی تسهیلات در شبکه توزیع میپردازد که شامل تصمیمهای مربوط به موجودی، برای هر محصول، مکانیابی تسهیلات و تخصیص مشتریان است. در ارزیابی مدل یکپارچه از اطلاعات یک شرکت فعال در صنعت کالاهای تندمصرف خانوار نیز استفاده شده است. بهدلیل پیچیدگی در دستیابی به راه حل بهینه در مسایل با ابعاد واقعی، یک روش حل مبتنی بر الگوریتم آزادسازی لاگرانژ و روش زیر گرادیان پیشنهاد شده است. به منظور نمایش کارائی روش حل پیشنهادی، نتایج حاصله با نرمافزار بهینهسازی مقایسه شد. نتایج محاسباتی نشان میدهد که عملکرد الگوریتم پیشنهادی از نظر شاخصهای مختلف شامل متوسط استفاده از ظرفیت مراکز توزیع (88/3%)، متوسط شکاف دوگانگی (0/71%) و بدترین شگاف گزارش شده (1/77%) بسیار امیدوارکننده است. همچنین نتایج مطالعه موردی صورت گرفته نیز کاهش تعداد مراکز توزیع از 17 به 12 مرکز را پیشنهاد میدهد. در پایان به چند نکته مدیریتی نیز اشاره شده است. | ||
کلیدواژهها | ||
مکان یابی تسهیلات؛ کنترل موجودی؛ آزادسازی لاگرانژ؛ خطر ادغام؛ مطالعه موردی | ||
عنوان مقاله [English] | ||
Evaluation of an integrated facility location-inventory model using Lagrangian relaxation approach with a FMCG case study | ||
نویسندگان [English] | ||
Gholamreza Nasiri1؛ Akbar Namazi Tajarogh2؛ Hamid Davoudpour3 | ||
1Department of Industrial Engineering, Faculty of Engineering, Alzahra University, Tehran, Iran | ||
2Niroo Research Institute, Tehran, Iran | ||
33Department of Industrial Engineering and Management Systems, Amirkabir University of Technology, Tehran, Iran | ||
چکیده [English] | ||
Supply chain management and distribution network design have attracted the attention of many researchers during recent years. This paper addresses a multi-product system of location problem in distribution network that incorporates inventory decisions for each product into capacitated facility location models. In the development of mathematical model, the data of real case study of fast moving consumer goods company is used. Due to difficulty of obtaining the optimal solution in real-scaled problems, a heuristic solution approach based on Lagrangian relaxation algorithm and sub-gradient method is presented. The proposed solution method is compared with the optimization software on randomly generated test problems with different size. Computational results show that the performance of proposed solution algorithm is very promising in terms of various indexes including 88.3% of DCs capacity, duality gap average and the worst case 0.71% and 1.77% respectively. The results of considered case study also proposed to reduce the number of distribution centers from 17 to 12 centers. Finally, some managerial insights are mentioned. | ||
کلیدواژهها [English] | ||
Facility location, Inventory control, Lagrangian relaxation, Risk pooling effect, Case study | ||
مراجع | ||
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