Ferramenta híbrida para otimização da produção seriada utilizando o controlador fuzzy

Abstract

The objective of this research was to develop a hybrid model with Fuzzy logic approach and multicriteria method for decision making, in order to optimize production lines in micro and small companies. In such way, the Lean Manufacturing concept was implemented to increase efficiency and production capacity, line balancing, labor cost reduction and quality improvement. Fuzzy controller based on the Mamdani model was employed to obtain the indicative parameters between the input variables (operator qualification and machinery) and output (quality) prioritized by the analytic hierarchy process. An industrial microenterprise in the footwear sector served as the basis for the application and evaluation of the tool. In addition to the empirical subsidies, bibliographical sources were also considered that supported the formulation of the study. A tool of easy interpretation and application was created that gave the company a 9% increase in efficiency, 8% in production, an 11% reduction in labor costs and a 43% reduction in rework rates. The tool developed in this work has significantly optimized the processes and, consequently, the profits in a serial production industry.