Display options
Cite
Bagha AK, Modak SV. Structural sensing of interior sound for active control of noise in structural-acoustic cavities. J Acoust Soc Am. 2015;138(1):11-21doi: 10.1121/1.4922235.
Bagha, A. K., & Modak, S. V. (2015). Structural sensing of interior sound for active control of noise in structural-acoustic cavities. The Journal of the Acoustical Society of America, 138(1), 11-21. https://doi.org/10.1121/1.4922235
Bagha, Ashok K, and Modak, S V. "Structural sensing of interior sound for active control of noise in structural-acoustic cavities." The Journal of the Acoustical Society of America vol. 138,1 (2015): 11-21. doi: https://doi.org/10.1121/1.4922235
Bagha AK, Modak SV. Structural sensing of interior sound for active control of noise in structural-acoustic cavities. J Acoust Soc Am. 2015 Jul;138(1):11-21. doi: 10.1121/1.4922235. PMID: 26233001.
Copy Download .nbib Format: NLM
Share it on

J Acoust Soc Am. 2015 Jul;138(1):11-21. doi: 10.1121/1.4922235.

Structural sensing of interior sound for active control of noise in structural-acoustic cavities.

The Journal of the Acoustical Society of America

Ashok K Bagha, S V Modak

Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.

PMID: 26233001 DOI: 10.1121/1.4922235

Abstract

This paper proposes a method for structural sensing of acoustic potential energy for active control of noise in a structural-acoustic cavity. The sensing strategy aims at global control and works with a fewer number of sensors. It is based on the established concept of radiation modes and hence does not add too many states to the order of the system. Acoustic potential energy is sensed using a combination of a Kalman filter and a frequency weighting filter with the structural response measurements as the inputs. The use of Kalman filter also makes the system robust against measurement noise. The formulation of the strategy is presented using finite element models of the system including that of sensors and actuators so that it can be easily applied to practical systems. The sensing strategy is numerically evaluated in the framework of Linear Quadratic Gaussian based feedback control of interior noise in a rectangular box cavity with a flexible plate with single and multiple pairs of piezoelectric sensor-actuator patches when broadband disturbances act on the plate. The performance is compared with an "acoustic filter" that models the complete transfer function from the structure to the acoustic domain. The sensing performance is also compared with a direct estimation strategy.

References

  1. J Acoust Soc Am. 2007 Oct;122(4):2354-64 - PubMed
  2. Behav Res Methods. 2010 Nov;42(4):1030-41 - PubMed
  3. J Acoust Soc Am. 2005 Apr;117(4 Pt 1):2201-11 - PubMed
  4. J Acoust Soc Am. 1990 Feb;87(2):820-57 - PubMed
  5. J Speech Hear Res. 1987 Mar;30(1):122-9 - PubMed
  6. J Acoust Soc Am. 1971 Feb;49(2):Suppl 2:583+ - PubMed
  7. Loquens. 2014 Jan;1(1):null - PubMed
  8. J Speech Lang Hear Res. 2007 Jun;50(3):595-610 - PubMed
  9. J Acoust Soc Am. 1997 Jan;101(1):466-81 - PubMed
  10. J Speech Hear Res. 1993 Apr;36(2):254-66 - PubMed
  11. Logoped Phoniatr Vocol. 2003;28(3):109-16 - PubMed
  12. J Acoust Soc Am. 2013 Jan;133(1):453-62 - PubMed

Publication Types