کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1134086 956055 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fuzzy inventory models for items with imperfect quality and shortage backordering under crisp and fuzzy decision variables
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Fuzzy inventory models for items with imperfect quality and shortage backordering under crisp and fuzzy decision variables
چکیده انگلیسی

This paper considers inventory models for items with imperfect quality and shortage backordering in fuzzy environments by employing two types of fuzzy numbers, which are trapezoidal and triangular. Two fuzzy models are developed. In the first model the input parameters are fuzzified, while the decision variables are treated as crisp variables. In the second model, not only the input parameters but also the decision variables are fuzzified. For each fuzzy model, a method of defuzzification, namely the graded mean integration method, is employed to find the estimate of the profit function in the fuzzy sense, and then the optimal policy for the each model is determined. The optimal policy for the second model is determined by using the Kuhn–Tucker conditions after the defuzzification of the profit function. Numerical examples are provided in order to ascertain the sensitiveness in the decision variables with respect to fuzziness in the components.


► Fuzzy Inventory problems for items with imperfect quality and shortages is considered.
► Input parameters and decision variables are fuzzy numbers.
► Graded Mean Integration method is used for defuzzification of the profit functions.
► Kuhn–Tucker conditions are used to solve the method.
► Numerical examples validate the models.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Industrial Engineering - Volume 64, Issue 1, January 2013, Pages 190–199
نویسندگان
, ,