Experimental studies on the multi-channel active control of complex sources in the free-field

Authors

  • Haoming Qin Sch. of Occup. and Environ. Hygiene, Dept. of Mechanical Engineering, The University of British Columbia, 3rd Floor, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada
  • Ann Nakashima Sch. of Occup. and Environ. Hygiene, Dept. of Mechanical Engineering, The University of British Columbia, 3rd Floor, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada
  • Desheng Li Sch. of Occup. and Environ. Hygiene, Dept. of Mechanical Engineering, The University of British Columbia, 3rd Floor, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada
  • Murray Hodgson Sch. of Occup. and Environ. Hygiene, Dept. of Mechanical Engineering, The University of British Columbia, 3rd Floor, 2206 East Mall, Vancouver, BC V6T 1Z3, Canada

Keywords:

Acoustic noise, Aircraft propellers, Anechoic chambers, Attenuation, Computer simulation, Control systems, Sensors, Active control system, Propeller aircraft noise

Abstract

Experimental results have clearly shown that the performance of an active control system can be improved by using multiple control channels. A multi-channel system not only increased the attenuation of the control area, but also increased the size of quiet zone. Moreover, it showed that more complex noise sources can be controlled by using a multi-channel system.

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Published

2003-09-01

How to Cite

1.
Qin H, Nakashima A, Li D, Hodgson M. Experimental studies on the multi-channel active control of complex sources in the free-field. Canadian Acoustics [Internet]. 2003 Sep. 1 [cited 2021 Dec. 2];31(3):86-7. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1563

Issue

Section

Proceedings of the Acoustics Week in Canada

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