This work is dedicated to passive and semi-active vibration control of flexible rotors by using
shape memory alloys in the support of the system. A rotor represented by a horizontal shaft …

Vibration will always be present in rotating machines and its amplitudes are especially due
to unbalance forces. However, due to safety reasons and design constraints, vibration levels …

The current understanding of rotordynamics and together with the capacity of modeling and
predicting the physical behavior of such rotor systems have historically grown in bursts …

Active Magnetic Bearings (AMB) have a wide range of applications in industry. The rotor is
levitated and supported by magnetic forces, which are generated by magnetic fields arising …

Most of the time, modern problems of engineering are nonlinear and, may also be subject to
certain types of uncertainty that can directly influence in the answers of a particular system …

This work aims at identifying the dynamic behavior of four electromagnetic actuators deriving
their Bode diagrams. The actuators are used in a rotating machine hybrid bearing and are …

A presença de defeitos em máquinas rotativas é um problema que oferece perdas
financeiras e redução na segurança do trabalho nos setores da indústria. Nas últimas …

This research proposes the active vibration control in a beam of composite material using
electromagnetic actuators. The used control theory was the robust control, specifically the …

Uma das principais etapas no projeto de um sistema mecânico consiste na obtenção de seu
modelo matemático. Este deve ser o mais representativo possível, ie, deve contemplar o …