نوع مقاله : مقاله پژوهشی
نویسنده
دانشیار، دانشگاه الزهرا.
چکیده
با توجه به الزامات زیست‌محیطی، اجتماعی و اقتصادی، طراحی شبکه زنجیره تأمین حلقه‌بسته پژوهشگران زیادی را به خود جذب کرده است. این مسئله بیشتر به‌صورت مجزا از ارزیابی تأمین‌کنندگان موردمطالعه قرار گرفته است. عوامل مختلفی به‌جز قیمت مانند ویژگی‌های تأمین‌کننده و قطعه می‌تواند تأثیر زیادی بر عملکرد زنجیره داشته باشد. در این پژوهش یک شبکه زنجیره تأمین حلقه‌بسته شامل سایت‌های تولید، جداسازی، بازسازی و دفع در نظر گرفته و مدلی تلفیقی در سه مرحله ارائه شده است. در مرحله نخست از روش ترکیبی «سوارا ـ واسپاس» در حالت سلسله‌مراتبی برای امتیازدهی به تأمین‌کنندگان استفاده شده، در مرحله دوم امتیازات زیست‌محیطی ـ اجتماعی مکان‌های نوسازی با توجه به جمعیت مناطق مسکونی و نرخ بیکاری محاسبه و در مرحله سوم یک مدل برنامه‌ریزی خطی عدد صحیح ترکیبی سه هدفه پیشنهاد شده است. نتیجه، انتخاب تأمین‌کننده مناسب و مکان سایت‌های نوسازی و همچنین جریان‌های بین اعضای مختلف زنجیره است. در این مدل علاوه بر هدف حداکثرسازی تأمین از تأمین‌کنندگان شایسته، پایداری زنجیره نیز در قالب اهداف اقتصادی و زیست‌محیطی ـ اجتماعی مدنظر قرار گرفته است. نتایج عددی مربوطه نشان‌دهنده اعتبار مدل و نقش گزینه کمبود در رسیدن به جواب‌های بهتر همراه با توجه کافی به شاخصه‌های پایداری است.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
A Multi-Objective Sustainable Closed Loop Supply Chain Model Considering Suppliers Evaluation and using SWARA-WASPAS Method
نویسنده [English]
- Mehdi Seifbarghy
Associate Professor, Alzahra University.
چکیده [English]
Closed loop supply chain network design has attracted the attentions of many researchers due to the social and environmental requirements as well as the economic benefits. Most of the researchers have studied the design problem separated from the supplier assessment. Some other criteria except for price, regarding supplier features, the supplied part and the production process can have considerable effects on supply chain performance. In this paper, a closed loop supply chain network including production centres, disassembly, refurbishing, and disposal sites is considered. An integrated three-phase model is given so that in the first phase, integrated SWARA-WASPAS method is employed for suppliers’ evaluation; in the second phase, a new method is proposed in order to determine environmental-social scores of remanufacturing sites and in the third phase, a three-objective mixed integer linear programming model is developed. Determination of the eligible suppliers and sustainability of the supply chain considering economic, social and environmental objectives, are of most outputs of this model. Unsatisfied demand of customers are assumed to be lost. The numerical results show the validity of the model and the role of stockout option in reaching better solutions considering the sustainability metrics.
کلیدواژه‌ها [English]
- Closed Loop Supply Chain
- Supplier Assessment
- Sustainability
- Stockout
- SWARA-WASPAS
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