ارائه مدل ریاضی زنجیره‌تأمین واکسن با امکان حمل‌ونقل بین انبارها و مکان‌یابی مراکز واکسیناسیون

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار گروه مهندسی صنایع، دانشکدۀ فنی مهندسی، داشنگاه علم و فرهنگ، تهران، ایران.

2 دانشجوی کارشناسی ارشد مهندسی صنایع، گروه مهندسی صنایع، دانشکدۀ فنی مهندسی، دانشگاه علم و فرهنگ، تهران، ایران.

10.22084/ier.2025.30236.2188

چکیده

امروزه جوامع در تلاش هستند تا با تزریق واکسن ایمنی افراد را در برابر بیماری‌ها تضمین کنند، بنابراین تأمین واکسن نقش مهمی در زندگی انسان‌ها دارد. هدف این پژوهش ارائه یک مدل ریاضی برای زنجیره‌تأمین واکسن است که افراد بیشتر و با هزینه کمتری بتوانند واکسن دریافت کنند. برای این منظور، یک مدل ریاضی باهدف حداقل‌کردن هزینه‌ها جهت تعیین تصمیمات مختلف زنجیره‌تأمین شامل تعداد، مکان و ظرفیت تأسیسات شبکه و تخصیص جریان در مراکز مختلف زنجیره‌تأمین ارائه ‌شده و از رویکرد برنامه‌ریزی تصادفی دومرحله‌ای برای برخورد با عدم قطعیت استفاده شده‌است. عدم قطعیت در تقاضاها، آسیب‌پذیری واکسن‌ها و انبار ضایعات و ظرفیت محدود و اولویت‌های مختلف برای تقاضا، هزینه کمبود برای تقاضا برطرف نشده، امکان جابه‌جایی بین انبارها و مکان‌یابی مراکز تزریق واکسن از مفروضات این پژوهش می‌باشد. خروجی حل مدل ریاضی پیشنهادی شامل مکان‌یابی مخزن‌ها، انبارها و مراکز تزریق واکسن، مقدار تقاضای برطرف نشده و میزان حمل‌ونقل بین اجزای مختلف شبکه زنجیره‌تأمین واکسن است. برای اعتبارسنجی نتایج حاصل از خروجی مدل ریاضی این پژوهش از سه روش حل موجود در گمز استفاده شده و بر روی پارامترهای مهم ‌مسأله نیز تحلیل حساسیت انجام گرفته ‌است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Providing a Mathematical Model of the Vaccine Supply Chain with the Possibility of Transportation between Warehouses and the Location of Vaccination

نویسندگان [English]

  • Azizolah Jafari 1
  • Mohadeseh Khosravi 2
1 Associate Professor, Department of Industrial Engineering, Faculty of Engineering, University of Science and Culture, Tehran, Iran.
2 Master’s Student in Industrial Engineering, Department of Industrial Engineering, Faculty of Technical and Engineering Sciences, University of Science and Culture, Tehran, Iran.
چکیده [English]

Nowadays, societies are striving to ensure immunity against diseases through vaccination, making vaccine supply a crucial aspect of human life. The goal of this research is to propose a mathematical model for the vaccine supply chain to enable more people to receive vaccines at a lower cost. To this end, a mathematical model is presented with the objective of minimizing costs to determine various supply chain decisions, including the number, location, and capacity of network facilities, as well as flow allocation across different centers in the supply chain. A two-stage stochastic programming approach is used to address uncertainty. The assumptions of this research include uncertainties in demand, vaccine vulnerability, waste storage, limited capacity, varying priorities for demand, shortage costs for unmet demand, the possibility of transfers between warehouses, and the location of vaccination centers. The output of the proposed mathematical model includes the location of depots, warehouses, and vaccination centers, the amount of unmet demand, and the volume of transportation between different components of the vaccine supply chain network. To validate the results obtained from the mathematical model, three solution methods available in GAMS were used, and a sensitivity analysis was performed on the key parameters of the problem.

کلیدواژه‌ها [English]

  • Vaccine Supply Chain
  • Uncertainty
  • Supply Chain Network Design
  • Two-Stage Stochastic Planning

مراجع

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نشریه پژوهش های مهندسی صنایع در سیستم های تولید
دوره 13، شماره 26
شهریور 1404
صفحه 37-53

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