Avaliação de produtos e proposição de melhorias: o caso do protótipo de um elevador didático desenvolvido e construído no laboratório de máquinas e acionamentos – D.E.E/CEAR/UFPB

Abstract

This work focuses on the Prototype Evaluation of a Didactic Elevator developed at the Laboratory of Machines and Electric Drives at UFPB and which was built from the need to improve the way of conducting tests in the Servo Kit, however after initial tests some flaws were noticed. The general objective of this work is to propose improvements for the mentioned product and, in order to reduce the probability of occurrence of failures that may occur in the developed product. For this, its construction and operation were detailed; researched about similar products; The tests that were carried out varying the speed of the servomotor were planned, which allowed to make an initial survey of the problems and to raise some reliability measures such as average time until the first failure and the risk rate. But what guided the Assessment carried out was the Analysis of Failure Modes and Effects (FMEA), a managerial tool that allows from the identification of failure modes and a series of information that will lead to the risk classification of each failure mode. . This is used to prioritize the Project's improvement and correction actions. Thus, the Risks of each failure mode were raised, and the one with the highest value was a failure related to the sporadic situation in the vertical linear positioning of the cabin and received as a recommendation for improvement the replacement of steel cable with Braided Rope, being that outside this more than 15 actions were recommended.