Second order sliding manifold approach for vibration reduction via output feedback: experimental results

In this paper a second order sliding manifold control approach is adopted as a technique to effectively reduce the vibrations of a flexible beam. A novel theoretical result for a MIMO output feedback control law is presented to show how the singular perturbation theory can be used to tackle the problem of active vibration control. The theory is supported both by simulations and by the results of a number of experiments performed on a brass beam with piezoelectric patches attached on it, and used in self-sensing configuration in order to have a collocated control system