Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Active Noise Control of Ducts Using the FXLMS Algorithms

FXLMS 알고리듬을 이용한 덕트의 능동소음제어

  • 류경완 (부산대학교 대학원 기계시스템설계) ;
  • 홍진숙 (부산대학교 기계공학부) ;
  • 정의봉 (부산대학교 기계공학부)
  • Published : 2009.01.20
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Abstract

This paper investigates active noise control of ducts using filtered-x least mean square(FXLMS) algorithms to reduce noise transmission. Single channel FXLMS(SFXLSM) and multiple channel FXLMS(MFXLMS) algorithms are used to implement the active control systems. The transmission loss is significantly increased by SFXLMS but the sound pressure level(SPL) at the upstream of the error sensor is increased while that of downstream is very low. This increase of the upstream SPL causes the duct wall to vibrate and so to radiate noise. To prevent the wall vibration generated by the sound field upstream, global sound field control is required. To reduce SPL globally along the duct, active noise control using MFXLMS is implemented. We can then be obtained globally reduced SPL. It is found experimentally that the vibration level, and so the radiated noise level, can be reduced by the active noise control using MFXLMS.

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References

  1. NOVI Mich, 2008, Retrieved 21 July 2008, “Eberspaecher Puts Speakers Into Car Mufflers,” Find Articles Website : http://findarticles.com/p/articles/mi_m0EIN/is_/ai_n27928872
  2. Byron, M., 2008, “Comforting the Customer” is the Goal with FG Falcon as Refinement Levels Improve, Retrieved 17 February 2008, from Autotrader's Website: http://www1.autotrader.com.au/mellor /mellor.nsf/carshowroomstory?ReadForm&ID=08FF7004DF010719CA2573F0001B1EDF
  3. Denenberg, J. N. and Charry, J. M., 1993, Energy Savings Through the Use of Active Noise Cancellation, from Website: http://doctord.dyndns.org:8000/Pubs/ENERGY.htm
  4. Kuo, S. M. and Morgan, D. R., 1996, Active Noise Control Systems : Algorithms and DSP Implementations, John Wiley & Sons, Inc., New York
  5. Nelson, P. A. and Elliott, S. J., 1994, Active Control of Sound, Academic Press, A Harcourt Science and Technology Company, New York
  6. Elliott, S. J., Stothers, I. M. and Nelson, P. A., 1987, “A Multiple Error LMS Algorithm and Its Application to the Active Control of Sound and Vibration,” IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-35, No. 10. pp. 1423-1434
  7. Elliott, S. J., 2005, “Signal Processing for Active Control,” Academic Press, A Harcourt Science and Technology Company, New York
  8. Kwon, O.-C., Lee, G.-T., Park, S.-G., Lee, J.-Y., 2008, “Performance Improvement of Active Noise Control Using Co-FXLMS Algorithm,” Transactions of the Korean Society Noise and Vibration Engineering Vol. 18, No. 3, pp. 284-292 https://doi.org/10.5050/KSNVN.2008.18.3.284
  9. Sutton, T. J., 1992, “The Active Control of Random Noise in Automative Interiors,” A Thesis Submitted for the Degree of Doctor of Philosophy
  10. Woo, J. H., Kim, I. S., Ih, J. G. and Kim, K. J., 1992, “Active Noise Control of the Plane Wave Travelling in a Duct Using Filtered-x LMS Algorithm,” Transactions of the Korean Society Noise and Vibration Engineering Vol. 2, No. 2, pp. 107-116