A reduced global semi-active vibroacoustic control strategy, statement and preliminary validations:

Thamina Loukil (1) , Olivier Bareille (1) , Mohamed Ichchou (1)

1 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

In this talk, a control strategy is presented and numerically tested. This strategy aims to achieve the potential performance of fully active systems with a reduced energy supply. These energy needs are expected to be comparable to the power demand of semi-active systems, while system performance is intended to be comparable to that of a fully active configuration. The underlying strategy is called ”global semi-active control”. This control approach results from an energy investigation based on management of the optimal control process. Energy management encompasses storage and convenient restitution. The proposed strategy monitors a given active law without any external energy supply by considering purely dissipative and energy-demanding phases. Such a control law is offered here along with an analysis of its properties. A suboptimal form, well adapted for practical implementation steps, is also given. Moreover, a number of numerical experiments are proposed in order to validate test findings.

Mots clés: active control; energy management

Domaines: Acoustique [physics.class-ph]

Thamina Loukil, Olivier Bareille, Mohamed Ichchou. A reduced global semi-active vibroacoustic control strategy, statement and preliminary validations:. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811369⟩