| Title |
Optimal Selection of Transducer Locations for Active Cancelation of Noise in a Duct |
| Abstract |
The attenuation property of active noise control system is much dependent on the locations of transducers. It is very difficult to determine the optimal locations of transducers analytically, because the acoustic behaviors in active noise control systems are very complex and the acoustic parameters, fluid density, complex propagation coefficients, etc., are usually unknown. In this paper, effects of positions of transducers and of distances between transducers on attenuation properties of active noise control systems is investigated via computer simulations. The transfer functions between the transducers are derived using the superposition principle for computer simulations. Computer simulations show that the acoustic monopole and dipole systems for duct noise attenuation are sensitive to variations of the transducer location. |