Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 31, No. 4 (April 2018) 605-611    Article in Press

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  COMPARISON OF INVENTORY MODELS FOR OPTIMAL WORKING CAPITAL; CASE OF AERONAUTICS COMPANY
 
Z. Benmamoun, H. Hachimi and A. Amine
 
( Received: January 04, 2017 – Accepted in Revised Form: January 04, 2018 )
 
 

Abstract    The goal of supply chain management is to provide products with best quality, low costs and shortest delay of delivery corresponding to customers’ expectations. To ensure that, companies must be in continuous research for management methodologies which allows them the possibility to improve their financial results by decreasing costs and improving their process and thus customers satisfaction. Before searching for a metaheuristic function of the optimal solutions, this paper is presenting a basic research, conducted in aeronautic company to find out the better solution for raw material inventory management. These raw materials are obtained from the supply of imports and some local purchases. The aims of study are to present a comparison of inventory deterministic models, the economic order quantity, the Interval order quantity and the minimum maximum inventory. The first step is to collect data’s containing 3896-part number with various suppliers, lead time, costs, consumption, holding cost and set up cost, the second step is calculating the order quantity with deterministic models and analyzing the results to choose the better solution. The third step is doing the ABC classification and comparing the amount of average stock between the three methods. The results show that the optimal deterministic solution is a combination of two of them.

 

Keywords    Inentory Comparison; Inventory Management; Economic Order Quantity; Interval Order Quantity

 

چکیده    هدف از مدیریت فروشگاههای زنجیره­ای مهیا نمودن فرآورده­ها با بهترین کیفیت و هزینه پائین در کوتاهترین مدت تحویل طبق خواست مشتریان است. براین اساس جهت جلب رضایت مشتریان شرکت باتکنولوژی مدیریرت می­تواند عملکرد مالی را بهبود بخشد و هزینه­ها را کاهش دهد. قبل از دستیابی به حل مطلوب این مقاله مبانی تحقیق برای بهترین راه حل برای مدیریت مواد اولیه را بررسی می­نماید. این مواد اولیه از شرکتهای تدارکاتی یا پشتیبانی خریداری می­شوند. هدف از این تحقیق ارائه الگوها برای سفارشات کمی است بر حسب حداقل و حداکثر سفارشات است. در اولین گام داده­ها از 3896 شماره قطعه با شرکتهای تدارکاتی متفاوت، زمان، هزینه، مصرفی، زمان نگهداری و هزینه نمایش جمع آوری گردید. در گام دوم محاسبات کمیت سفارش طبق الگو تعیین شده و انالیز نتایج برای انتخاب بهترین گزینه بعمل می­آید. در سومین گام طبقه بندی الفبایی و مقایسه مقدار میانگین ذخیره در میان سه روش اجرا می­گردد. نتایج نشان می­دهد که بهترین راه حل در دو روش ترکیبی بدست می­آید.

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