Abstract
In this paper the problem of modeling, analysis and unbalance response control of a rotor system with two disks in anasymmetrical configuration is treated. The Finite Element Method (FEM) is used to get the system model including thegyroscopic effects and then, the obtained model is experimentally validated. Rotordynamic analysis is carried outusing the finite element model obtaining the Campbell diagram, the natural frequencies and the critical speeds of therotor system. An asymptotic observer is designed to estimate the full state vector which is used to synthesize a LinearQuadratic Regulator (LQR) to reduce the vibration amplitudes when the system passes through the first critical speed.Some numerical simulations are carried out to verify the closed-loop system behavior. The active vibration controlscheme is experimentally validated using an active suspension with electromechanical linear actuators, obtainingsignificant reductions in the resonant peak.
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