Sustainable closed-loop supply chain network design and operations planning considering human resource employment and training

Document Type: research paper

Authors

School of Industrial Engineering, College of Engineering, University of Tehran, Tehran, Iran

Abstract

Modeling and optimal solving of supply chain management problems lead to efficient decision making in strategic planning and supply chain operations, resulting in a competitive advantage. Today, with the planning of a sustainable supply chain, in addition to achieving economic goals, it is possible to meet social and environmental objectives and considerations. This research deal with sustainable closed-loop supply chain network design and operations planning problem in which is human resource employment and training are considered. First, a three-objective optimization model is developed in which the supply chain network is designed and strategic variables (such as location and capacity determination, technology selection, skilled or semi-skilled employment and training, and etc.) are obtained. Then, a multi-period model is proposed supply chain operations planning in which the amount of production, inventory, shortage, temporary recruitment of manpower, etc. in each period are determined. In the proposed strategic model, a trade-off between the objectives of minimizing the cost of the supply chain (economic), maximizing employment (social), and minimizing environmental impacts is done by augmented epsilon constraint method. Also, Benders decomposition algorithm is used to solve large-scaled instances. In the final section of the research, some numerical studies are presented to provide numerical results, managerial insights and evaluating the performance of the proposed model and solution approaches.

Keywords


Article Title [Persian]

برنامه‌ریزی عملیات و طراحی شبکه زنجیره تأمین حلقه بسته پایدار با در نظر گرفتن استخدام و آموزش نیروی انسانی

Authors [Persian]

  • رضا وکیلی مطیع
  • رضا توکلی مقدم
  • علی بزرگی امیری
دانشجوی دکتری مهندسی صنایع، پردیس البرز، دانشگاه تهران، ایران
Abstract [Persian]

مدلسازی و حل بهینه مسائل مدیریت زنجیره تأمین موجب تصمیم‌گیری کارا در برنامه‌ریزی استراتژیک و عملیات زنجیره می‌شود که در پی آن مزیت رقابتی ایجاد می‌شود و قدرت زنجیره افزایش می‌یابد. امروزه با برنامه‌ریزی زنجیره تأمین پایدار می‌توان علاوه بر تحقق اهداف اقتصادی، اهداف و ملاحظات اجتماعی و زیست‌محیطی را نیز ارضاء نمود. در این تحقیق به مدل‌سازی و حل مسئله برنامه‌ریزی عملیات و طراحی شبکه زنجیره تامین حلقه بسته پایدار پرداخته می‌شود که در آن به استخدام و آموزش نیروی انسانی زنجیره تأمین نیز توجه می‌شود. ابتدا یک مدل بهینه‌سازی سه‌هدفه ارائه می‌شود که در آن شبکه زنجیره تأمین طراحی می‌شود و متغیرهای استراتژیک (مثل مکان‌یابی و تعیین ظرفیت تسهیلات، انتخاب تکنولوژی، استخدام وآموزش نیروی انسانی ماهر و یا نیمه‌ماهر و غیره) تعیین می‌شود. سپس مدل چنددوره‌ای به منظور برنامه‌ریزی عملیات زنجیره تامین طراحی‌شده ارائه می‌شود که در آن مقدار تولید، موجودی، عرضه، کمبود، جذب موقت نیروی انسانی و غیره در هر دوره به صورت بهینه بدست آورده می‌شود. در مدل استراتژیک پیشنهادی، موازنه اهداف کمینه‌سازی هزینه‌های زنجیره تامین (اقتصادی)، بیشینه‌سازی اشتغال (اجتماعی)، و کمینه‌سازی اثرات زیست محیطی، با روش از روش اپسیلون محدودیت تکامل یافته انجام می‌شود. همچنین الگوریتم تجزیه بندرز برای حل مسئله در ابعاد بزرگ بکار گرفته می‌شود. در بخش پایانی تحقیق به مطالعه عددی پرداخته می‌شود تا علاوه بر ارزیابی مدل و رویکردهای حل پیشنهادی، نتایج عددی تحلیلی و بینیش‌های مدیریتی ارائه ‌شود.

Keywords [Persian]

  • زنجیره تأمین حلقه بسته پایدار
  • برنامه ریزی عملیات
  • بهینه سازی چندهدفه
  • تجزیه بندرز
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