نوع مقاله : پژوهشی
نویسندگان
1 دانشکده مهندسی صنایع، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران، ایران.
2 دانشگاه آزاد اسلامی واحد تهران جنوب
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
In the inventory management, some items are substitutable. Therefore, in the case of shortage, part of the demand could be satisfied with the substitute item in order to reduce shortage costs. In this paper two partially substitutable products with imperfect items in the order quantity are considered. The imperfect items are eliminated after the completion of inspection. The two items have same cycle time and in the case of shortage part of the demand is substituted. The model is presented and solved in symbolic form for some special cases. A numerical example is presented and solved in general form. Based on the findings, increasing the substitution costs, decreasing holding costs of the substitutable item and decreasing percentage of substitution could decrease the ratio of time with shortage. In addition, the increase in substitution and holding costs increases the total inventory costs while the increase in percentage of substitution could increase or decrease the total inventory costs in different intervals.
کلیدواژهها [English]
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