Our research on robust active control of noise and vibrations focuses on the suppression of broadband stochastic disturbances (see e.g. Figure 5). Until now active noise/vibration control (ANVC) has been successfully applied to cancel harmonic disturbances, e.g. in propeller aircrafts and air conditioning systems. In most of these ANVC systems, the Filtered-X LMS algorithm is applied, because of its simplicity and adaptivity.
However, the control of broadband disturbances, e.g. in jet aircrafts and road-tire/aerodynamic noise in cars, suffers to some important problems, which has hold back from practical application:
To solve these problems, we have proposed two solutions:
For large scale applications, e.g. in smart materials, with many sensors and actuators, decentralized and distributed control methods needs to be developed to reduce the complexity of the real-time controller. Therefore a second main research goal is to design and practically validate decentralized ANVC algorithms for broadband disturbance suppression.
This project is done in cooperation with TNO-TPD.
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Last modified: 24 March 2005, 10:16 UTC
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