خلاصة:
In this article, a model is presented that uses it to locate sales representative agencies in a way that improves several objectives simultaneously. For this purpose, objectives have been defined in this model that, in addition to minimizing the distance of centers and locating them in the best possible locations in terms of quality, select and establish locations that also have the minimum cost. In the presented model, the allocation method for each location is determined using multi-criteria decision-making models, and for this purpose, the entropy weighting technique is used, and finally, the final model was presented using multi-objective programming. Finally, this model was implemented for the location of sales representative agencies of an air conditioner manufacturing factory and then solved using Lingo software, and the optimal locations for the agencies were determined.
ملخص الجهاز:
OOHAY@IRIMA_GM (**)Associate Professor of Management at Allameh Tabataba'i University (***)Master of Industrial Engineering Date received: 87/3/19 - Final acceptance: 88/3/11 the country, increasing the utility and quality of the selected provinces, as well as minimizing the cost of establishing agencies among different provinces was carried out, which ultimately, by solving the model using the fuzzy logic method, the best provinces were selected by incorporating managers' opinions into the output of the objective function weights.
Therefore, the provinces of: Tehran, Mashhad, Isfahan, Shiraz, Yazd, Rasht, Qazvin, Ahvaz, Bandar Abbas, Bushehr, and Yasuj are selected for establishing the company's product agencies.
Now, the fuzzy model can be formulated as follows: (Refer to the page image) By solving the above model, the desirability values related to each objective (?IA) as well as the locations of distribution centers or warehouses (?IX) can be obtained.
(Refer to the page image) After obtaining the optimal values of the objective functions and forming the above table, to apply fuzzy multi-objective programming, the membership degree must first be defined for And finally, we will have weights (?JW) for the existing indicators: (Refer to the page image) If the DECISION(MD) already has a subjective judgment (J?) as the relative importance for the Jth indicator, then the ?JW calculated through entropy can be adjusted as follows: Adjusted weight (Refer to the page image) -Proposed Model and Method In general, the following objectives are pursued in location problems.
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