ارائۀ مدل موجودی‌ ـ زمان‏بندی در زنجیرۀ تأمین ساخت‌و‌ساز

نوع مقاله : مقاله علمی پژوهشی

نویسندگان

1 کارشناس‎ارشد مهندسی صنایع، دانشکدۀ صنایع، دانشگاه علم و صنعت ایران، تهران، ایران

2 دانشیار گروه مدیریت بهره‌وری، دانشکدۀ مهندسی صنایع، دانشگاه علم و صنعت ایران، تهران، ایران

3 استادیار گروه مهندسی سیستم، دانشکدۀ مهندسی صنایع، دانشگاه علم و صنعت ایران، تهران، ایران

چکیده

یکی از مشکلات مطرح در مدیریت پروژه که سبب اجرانشدن پروژه در زمان مقرر می‎شود، قرارنداشتن به‎موقع منابع در سایت پروژه است. این مشکل ممکن است از تأخیر زمانی ارسال منابع از تأمین‌کنند‌‏گان و مبادی ذی‎ربط زنجیرۀ تأمین به سایت پروژه نشئت گیرد. برای مدیریت بهتر منابع و نیز بهبود وضعیت زنجیرۀ تأمین ساخت‌و‌ساز، می‏توان با تعیین میزان بهینۀ سفارش منابع در زنجیرۀ تأمین پروژه، بر‌اساس محدودیت‏های پروژه و زمان لازم برای اجرای فعالیت‏های زنجیرۀ تأمین، تأخیر زمانی در تأمین منابع را حل کرد. از این ‌رو، در مقالۀ حاضر نوعی مدل ریاضی به‌منظور تعیین میزان بهینۀ سفارش و زمان فعالیت‏های زنجیرۀ تأمین ارائه می‏شود؛ به‌طوری‏ که مجموع هزینۀ نگهداری در سایت پروژه و نیز هزینۀ زنجیرۀ تأمین به حداقل می‎رسد. ابتدا مدل یادشده خطی‏سازی می‌شود و سپس با استفاده از نمونه‏های عددی بررسی و نتایج ارائه می‏شود.

کلیدواژه‌ها


عنوان مقاله [English]

An Inventory–Scheduling Model for Supply Chain of Construction Project

نویسندگان [English]

  • Mohammad Reza Vakili 1
  • Siamk Nori 2
  • Sseid Yaghobi 3
1
2
3 عضو هیئت علمی
چکیده [English]

One of the important problems in project management is lack of available resources in proper time at project site that leads to lack of project implementation in due date. This problem may be lead to time delay in sending resources from suppliers and related origins in supply chain to project site. Therfore, to better resources managmenet and also the improvement of supply chain condition, the time delay problem in resources supply can be solved by determining the optimal quantity of order in supply chain based on project constraints and required time for implementation of supply chain activities. Accordingly, in this paper a mamathemical model is proposed for determining the optimal quantity of orders and activities duration of supply chain, in which the total holding cost in project site and also supply chain cost are minimized. The mentioned model is first linearized and then by using the numerical examples, the results analyziz are presented.

کلیدواژه‌ها [English]

  • Construction Supply Chain
  • Duration of Supply Chain's Activities
  • Optimal Quantity of Order
  • Mathematical model
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