DIMENSIONAMENTO DE UM ABSORVEDOR DINÂMICO DE VIBRAÇÃO APLICADO À BASE DE UMA MÁQUINA ROTATIVA

Abstract

Dynamic Vibration Absorbers have been widely studied and used to attenuate unwanted vibrations. Many structures, machines and equipment are harmed by excessive vibration, as these can cause noise, shorten the life of mechanical components, premature failure of the structure due to fatigue and lead to the collapse of a system. The purpose of vibration attenuation is to increase the useful life of machines, equipment and structures, providing comfort and safety to its users. Nowadays, there are many types of absorbers on the market, from the simplest ones, whose function is only to isolate vibrations (insulators), as more complex, such as adaptive dynamic absorbers, made of intelligent materials that can amplify the frequency band. in which they operate. The absorber must be studied and analyzed for each case of vibration, so that its construction is viable. Therefore, it is important to note that the construction of an ADV will not always be necessarily expensive, since it is possible to use simple materials, as well as simple models that will be efficient. The present work will aim at dimensioning a dynamic vibration absorber that will be coupled to the base of a rotating machine with a high vibration amplitude, so that these are attenuated and the machine can operate normally.