بهینه سازی مساله انتخاب شریک با رویکرد شرکت مجازی و زمانبندی حمل و نقل مشارکتی
محورهای موضوعی : تحقیق در عملیاتنازنین قاسمی 1 , علی حسین زاده کاشان 2 , سید اسماعیل نجفی 3
1 - گروه مهندسی صنایع، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
2 - دانشکده مهندسی صنایع و سیستم¬ها، دانشگاه تربیت مدرس، تهران، ایران
3 - گروه مهندسی صنایع، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
کلید واژه: Collaborative transportation, Virtual enterprise, Partner selection,
چکیده مقاله :
در تجارت رقابتی امروز، شرکت‌ها بی وقفه به دنبال راه‌های جدید برای کاهش هزینه‌ها و بهبود کیفیت محصولات خود هستند. یک شرکت برای ماندگاری در بازار به منابع مختلفی احتیاج دارد که برای شرکت‌های کوچک و متوسط می‌تواند چالش برانگیز است. بنابراین، شرکت‌ها برای رسیدن به اهداف مشترکشان ظرفیت‌های خود را با یکدیگر به اشتراک می‌گذارند. این اشتراک‌گذاری می‌تواند تحت عنوان یک شرکت مجازی صورت گیرد. شرکت مجازی یک اتحاد اقتصادی است که در آن چندین شرکت توانایی‌های خود را برای تهیه محصولات و خدمات خاص ارائه می‌دهند. اموری که به طور سنتی توسط یک شرکت واحد صورت می‌پذیرفت. مزایای شرکت مجازی ساختار انعطاف‌پذیر و ارائه‌ی پاسخ سریع به بازار است که محصولات و خدمات را با هزینه کمتر، کیفیت بالاتر، ریسک کمتر و مدت زمان کوتاهتر فراهم می‌کند. بنابراین، انتخاب شریک مناسب برای تکمیل پروژه‌ها یک امر مهم و حیاتی جهت موفقیت در ایجاد همکاری بین شرکت‌ها است. در این مطالعه، یک مدل انتخاب شریک جدیدکه یک برنامه‌ریزی خطی عدد صحیح مختلط (MILP) مبتنی بر مفهوم شرکت مجازی با در نظر گرفتن حمل و نقل مشترک تحت فرضیات مشخص در شرایط قطعی ارائه شده است. هم چنین، یک مثال عددی برای بررسی رفتار مدل مورد تجزیه و تحلیل قرار گرفته و نتایج آن گزارش شده است. نهایتا، حساسیت تابع هدف توسط برخی پارامترها تحلیل می‌شود و نتایج نشان می‌دهد که با افزایش دو پارامتر حداکثر تعداد زیر پروژه‌هایی انجام شده توسط یک شریک و ظرفیت حمل و نقل، مجموع هزینه های شبکه یا کاهش پیدا می‌کند یا تغییری نمی‌کند.
In today’s competitive business, companies are continuously looking for new ways to reduce their costs and improve their products’ quality. A company needs various resources to stay in the market and it can be challenging to provide these resources for small and medium-sized companies. Therefore, companies share their capacities with each other to achieve their common goals. This sharing can be done under the title of a virtual enterprise. A virtual enterprise is an economic alliance in which several companies share their capabilities to provide specific products and services. Virtual company’ advantages over the traditional companies include flexible structure and quick response to the market. VE should provide the situation for manufacturing products and services at a lower cost and higher quality with less risk and shorter lead times. So, partner selection has become a vital task for companies. The success of a virtual company is dependent on the selection of partners.In this study, a new partner selection model is presented with a VE concept integrated with collaborative transportation. The proposed model is presented in deterministic state. A numerical example is analyzed to investigate model behavior, and the results are presented and discussed. Finally, the sensitivity of the objective function is analyzed by some parameters and the results show that by increasing two parameters, the maximum number of sub-projects carried out by a partner and the transportation capacity, the total costs either decrease or remain unchanged.
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