Energitically efficient active vibration control of flexible structures

In this paper, a control strategy called "Global semi-active control" of flexible structures (cantilever beam) is presented and validated. This strategy aims to achieve potential performance of fully active systems with a reduced energy supply of an amount comparable to this of semi-active strategies. The control approach is presented and the law is offered. Independent Modal Space control (IMSC) study is performed to obtain the optimal force and comparative results of the beam response to the previous type of control and the proposed algorithm are presented. We actually remark the attenuation of the beam tip’s displacement versus reduced energy consumption for with global semi-active control (regenerative). Mots clefs: active control, energy, semi-active, vibrations.