Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1-8 |
| Journal | Australian Journal of Mechanical Engineering |
| Volume | 5 |
| Issue number | 1 |
| Publication status | Published - 2008 |
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Performance of an active control system near a reflecting surface. / Pan, Jie; Qiu, X.
In: Australian Journal of Mechanical Engineering, Vol. 5, No. 1, 2008, p. 1-8.Research output: Contribution to journal › Article
TY - JOUR
T1 - Performance of an active control system near a reflecting surface
AU - Pan, Jie
AU - Qiu, X.
PY - 2008
Y1 - 2008
N2 - This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.
AB - This paper deals with the evaluation of power radiated by two monopoles locatednear a refl ective surface, especially in the case when one monopole-strength is actively controlled forthe minimisation of total radiated power. The radiated power and the optimal input for the controlledmonopole are derived analytically. It is found that the power output of an active noise controlsystem consisting of two point sources and located near a refl ective surface is dependent upon thesystem orientation angle. Based on the mechanism that the refl ecting surface can convert a dipolevertical to the surface into a longitudinal quadrupole, we demonstrate that the introduction of arigid surface to the active noise control system could further enhance the total power reduction.
M3 - Article
VL - 5
SP - 1
EP - 8
JO - Australian Journal of Mechanical Engineering
JF - Australian Journal of Mechanical Engineering
SN - 1446-2672
IS - 1
ER -