Presenting a multi-objective mathematical model of multi-product and multi-stage fuzzy production planning for several periods in Gamz software

Subject Areas : Industrial Management

Aslan Doosti ¹ , saeid Rezaie Moghadam saeid Rezaie Moghadam ²

1 - Department of Mathematics, Omidiyeh Branch, Islamic Azad University, Omidiyeh, Iran.
2 - managemet.faculty of azad university

Received: 2021-01-04 Accepted : 2021-10-15 Published : 2022-05-29

Keywords: Production Planning, multi-stage, Multi-product, Fuzzy multi-objective mathematical model,

Abstract :

In manufacturing and service processes, facing conditions of uncertainty and changes in the amount of data used in the model causes variable parameters, and therefore it is not uncommon to expect such conditions in decision making. Therefore, not paying attention to such changes causes deviation in planning and deviation from the real situation and causes a lot of damage in the mentioned environments. Due to the importance of the issue, in this paper, the fuzzy optimization approach is used to deal with the uncertainty in the parameters of uncertainty of production stages and product quality in the manufacturer's center and model reconstruction center. The present study intends to design a mathematical model of a multi-objective production program and optimize it to minimize the cost of inventory, production, and manpower, and the maximum quality of the product and maximize the maximum occurrence of uncertainty at each stage of production that causes bottlenecks. It can increase the profitability of Borujen Concrete Parts Company. The results of solving the model by coding in Gamz software and using the comprehensive criterion method include the values of objective functions and decision variables. The results were approved by the officials of Borujen Stream Concrete Parts Company.

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