Optimization of Order Quantity for Multi-Product from Multi-Supplier with Discounted Prices

سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 813

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شناسه ملی سند علمی:

JR_IJARIE-1-3_002

تاریخ نمایه سازی: 26 اردیبهشت 1394

چکیده مقاله:

Many researches in inventory control area of knowledge have been focused on single objective and multi-objective problem of determining the economic quantity of order. In single objective problems, costs were considered as the objective. However, multi-objective problems have not been well investigated. For instance, there are no hint to transportation cost, budget, or holding costs, or only capacity and demand constraints have been considered in these researches. This study focuses on developing a model accompanied by costs, quality and the time of delivery.The economic order quantity of multi-product from multi-supplier in multi-period under uncertainty in demand and discounted prices are considered in this paper. In first step, a mathematical model is developed for this problem. This mathematical model is solved by using multi-objective optimization method i.e. goal programming. Then, a meta-heuristic method based on multiobjective particle swarm optimization is proposed. Results of the small size numerical examples show that solutions found by using the proposed meta-heuristic method are in average, 5% worse than solutions found by using the mathematical methods; however, it needs much lower computational time.

کلیدواژه ها:

Economic order quantity Discounted price Multi-objective particle swarm optimization

نویسندگان

Ali Izadi

Department of Industrial Engineering, Najafabad Branch, Islamic Azad University, Isfahan, Iran

Seyed Mahdi Homayouni

Department of Industrial Engineering, Lenjan Branch, Islamic Azad University, Isfahan, Iran

Mohammadreza Vasili

Department of Industrial Engineering, Lenjan Branch, Islamic Azad University, Isfahan, Iran