مدل‌سازی ریاضی چندهدفه زنجیره تأمین دارو در حوادث غیرمترقبه (مورد مطالعه: بحران زلزله در تهران)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناسی ارشد، پردیس البرز، دانشگاه تهران.

2 استادیار، دانشگاه اراک.

3 استاد، دانشگاه تهران.

چکیده

یکی از مهم‌ترین چالش­‌های صنعت دارو، ناهماهنگی بین اعضای زنجیره تأمین است. در بیشتر موارد، اعضای زنجیره تأمین دارو اهداف متضادی را دنبال می‏کنند که بعضاً با یکدیگر و یا با کل زنجیره تأمین در تعارض است. در این مطالعه، یک مدل ریاضی چندهدفه برای زنجیره تأمین دارو در حوادث غیرمترقبه پیشنهاد شده است تا به تصمیم­‌گیری­های استراتژیک در زمان وقوع حوادث غیرمترقبه همچون سیل و زلزله کمک کند. سه هدف کمینه‌­سازی هزینه­ها، کمینه‌­سازی درصد کمبود دارو و بیشینه‌‏سازی پراکنش مراکز توزیع با رویکرد امدادرسانی بهتر در زمان وقوع حادثه در نظر گرفته شده است. مسئله با استفاده از روش ترابی ـ حصینی حل و رابطه توابع هدف با یکدیگر، با توجه به اولویت و اهمیت آن­ها، مقایسه شده است. به‌منظور بررسی عملکرد مدل و نحوه ارتباط سطوح مختلف زنجیره تأمین و فعالیت­‌ها با یکدیگر از داده‌های مرتبط با بحران وقوع زلزله در شهر تهران در سناریوهای مختلف استفاده شده است. نتایج نشان می‌‏دهد که بیشترین تقاضا در حالت فعال­‌شدن گسل ری و کمترین تقاضا مربوط به فعال شدن گسل مشا ‏است. درنهایت مشخص خواهد شد که افزایش مطلوبیت توابع هدف کمینه‏‌سازی درصد کمبود دارو و بیشینه‌‏سازی پراکنش مراکز توزیع به‌­ترتیب هزینه بیشتری را به سیستم تحمیل خواهند کرد. 

کلیدواژه‌ها

عنوان مقاله [English]

Multi-Objective Pharmaceutical Supply Chain Modeling in Disaster (Case Study: Earthquake Crisis in Tehran)

نویسندگان [English]

  • Fatemeh Alidoost 1
  • Farzad Bahrami 2
  • Hossein Safari 3
1 M.A., Alborz Campus, University of Tehran.
2 Assistant Professor, Arak University.
3 Professor, University of Tehran.
چکیده [English]

Absence of coordination between different sections of pharmaceutical supply chain has been announced as the most important challenge in the medicine industry. These sections are often in conflict and it is possible that their related decisions become suboptimal for the whole supply chain. In this study, a multi-objective mathematical model is offered for pharmaceutical supply chain problem. The model helps make strategic decisions in unexpected disaster occurences such as earthquake and flood. To improve the humanitarian relief in disaster, the model concurrently minimizes the total costs, maximizes the dispersion of distribution centers and minimizes the percentage of drug undersupply as three different objective functions. The model is solved by Torabi-Hassini approach and the performance and importance of objective functions have been compared. In order to verify the proposed model and the relations of different levels of supply chain, Tehran earthquake crisis is considered through different scenarios as the case study. The results illustrate that the highest and lowest demand is in the case of Ray and Mosha fault activation, respectively. Finally, it is shown that increasing the utility of minimizing the percentage of drug undersupply and maximizing dispersion of distribution centers inflicts higher costs on the system.

کلیدواژه‌ها [English]

  • Pharmaceutical Supply Chain
  • Disaster
  • Humanitarian Relief
  • Multi-Objective Mathematical Modeling
  • Torabi-Hassini Approach

مراجع

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