Absorvedor dinâmico de vibrações

Abstract

With the advances of industries, more rotating machines began to be used to improve their production, and for this improvement maintenance methods were developed so as to avoid failures. A big problem in machines are mechanical vibrations, where catastrophic failures can happen if the vibrations get into the natural frequency band,which is the ressonance phenomenon. To minimize this problem a lot of instruments were created to attenuate vibrations, and one of these instruments is the Dynamic Vibration Absorber, whose aim is to stop a system from entering the natural frequency band, which avoids the possibility of failure. The DVA instudy is one fora mass, spring and absorber system, with simulations that vary parameters in order to see the changes in each case,and, in the end, show a final result, comparing this system with and without absorber, evaluating their differences, showing the advantages when using DVA, proving the advantages of using this system in the factory, to avoid failures, increasing then the lifetime and the profitability of the machines.