Criação de ferramenta para ranqueamento de falhas críticas de produto em máquinas de construção civil

Abstract

With the increasing entry of competitors in the civil construction machinery market and the intensifying competition, where product quality is becoming increasingly similar, the development of a tool capable of providing feedback to the engineering development process was aimed. The foundation for creating this tool was an extensive database comprising over 18,000 failures collected from various industry manufacturers. The primary objective of this research was to maximize customer satisfaction with product quality, even in the face of limited resources available for engineering development. To achieve this goal, criteria characterizing product failures were identified, allowing customers themselves to determine the relative importance of these criteria through an opinion survey employing linguistic variables. The collected opinions were transformed into weights for each criterion, and a prioritization tool was created using the Fuzzy SAW multicriteria method. This tool was also applied to critical failures faced by one of the manufacturers. The results obtained were consistent with the general and specific objectives of this research, enabling the effective prioritization of these failures for subsequent resolution. This approach aims not only to enhance product quality but also to optimize the allocation of engineering resources, making a significant contribution to increased customer satisfaction in the highly competitive civil construction machinery market.