Active noise control with the active muffler in automotive exhaust systems
- Title
- Active noise control with the active muffler in automotive exhaust systems
- Author
- 오재응
- Issue Date
- 1997-09
- Publisher
- American Society of Mechanical Engineers (ASME)
- Citation
- Proceedings of the ASME Design Engineering Technical Conference, v. 1C-1997, article no. V01CT16A008,
- Abstract
- This study experimentally demonstrates the use of an active muffler attached to an automotive exhaust system to reduce exhaust noise. For improving the signal to noise ratio in the process of estimating secondary path transfer functions, an on-line algorithm in which conventional inverse modeling is combined with an adaptive line enhancer is used as the control algorithm. The active muffler is designed so that the primary noise and the control sound are propagated as a plane wave in the outlet. Therefore, the error microphone could be placed outside the high temperature centers of the tail pipe, and the noise radiating to the outside could be reduced in the whole area around the outlet. The control experiment for reducing exhaust noise with an active muffler is implemented during run-up at no load. Compared with the conventional off-line method, it can be seen from the experimental results presented the proposed online method is capable of acquiring a reduction of more than 5 dB of exhaust noise in overall sound power level. © 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
- URI
- https://asmedigitalcollection.asme.org/IDETC-CIE/proceedings-abstract/DETC97/80425/V01CT16A008/1100048https://repository.hanyang.ac.kr/handle/20.500.11754/182755
- DOI
- 10.1115/DETC97/VIB-3796
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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