Análise de confiabilidade dos tubos flexíveis aplicada em um estudo de caso de um carro nacional

Abstract

Over the years, Industrial Maintenance has increasingly assisted in the development of products so that they present better performance and competitive costs, mainly through studies related to reducing the probability of component failure, which results in a growing emphasis on its reliability, constantly aiming a product designed in such ways to correspond the demands of the efforts that will be submitted, for a certain amount of time (which may, therefore, obtain a non literal sense of the word). Based on that, in this work, the hypothesis test is performed to obtain the distribution that best represents the set of failure data recorded for the component under analysis and, as soon, using the computer platforms MATLAB and EXCEL in order to assist in the necessary calculations and plotting of the graphics, obtaining a better visualization of the results. Hence, when performing such procedures, the values that represent the type of failure of the item, characterized as abrasion failure, the curves that represent the Probability Density, Failure Probability, Reliability and Failure Rate Functions are obtained. In order to, in possession of this information, carry out a comparative analysis between the results found in practice and those suggested by the manufacturer, proving the reason for the recommendations already made by the concessionaire in more detail and with the objective of obtain the most appropriate mileage to perform some type of maintenance, besides indicating the best type of intervention to be carried out, checking if it is more feasible to replace the part or carry out some improvement adjustment, to solve the fault that is in analysis in this work.