بناء انموذج برمجة خطية ضبابية مع تطبيق عملي في الشركة العامة للمنتجات النفطية

Abstract

Making decision in a fuzzy environment faces many difficulties due tothe lack of accuracy in data or permanently changes data , so the fuzzylinear programming is one of the best methods used in a fuzzyenvironment which have a big role in making the right decision to solvea problem , we have found that Dura-refinery is characterized by fuzzyenvironment with respect to a production costs and the produced quantities and the required quantities , as well as productionrequirements .The importance of Daura-refinery lies in the producedfrom fuel that have a direct effect on daily consumption andproductivity industry in the country.A fuzzy linear programming with triangular fuzzy numbers has beenadopted and solved by two methods (Robust ranking method , Boundand decomposition method) and making comparison between theresults of the methods , we adopted two approaches of solution , thefirst approach is processing the model of fuzzy linear programmingproblem by (Robust ranking method) then solving the model as a crisplinear programming problem , and the second approach is to solve themodel in second method , the second method (Bound anddecomposition method) , then processing the fuzzy solution results byusing (robust ranking method) , and may we found equality in theoptimal produced quantities in all methods that used in this research ,but the value of net profits in first approach is less than the value of netprofit in the second approach.