Robust control of an acoustic cavity

Abstract

This paper reports the experimental results in the application of feedback control of acoustic potential energy of an acoustic cavity as a sound-structure interaction system. The experiment concentrates on the flexible structure of the acoustic cavity where induces the major part of the interior noise. This paper demonstrates a practical way to design a controller using minimax LQG methods. It is shown that an important step in the controller design is the proper choice of a weighting function. The results presented in this paper are impressive and they can be further improved by proper choice of actuator and sensor placements. Show more