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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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fictive Noise Control of Enclosed Sound Field Using LQR Controller

LQR 제어기를 이용한 밀폐음장의 능동소음제어

  • 유우열 (전남대학교 대학원) ;
  • 김우영 (조선대학교 항공조선공학부) ;
  • 황원걸 (전남대학교 기계시스템공학부) ;
  • 이유엽 (전남대학교 기계시스템공학부)
  • Published : 2002.01.01
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Abstract

To control the noise of an enclosed sound field, we built a state space model using the acoustic modal parameter description. Using the state space model, we can investigate the controllability and observability, and find an appropriate position of control speaker and microphone to control sound field of the enclosed space. We implemented LQR(linear quadratic regulator) controller and reduced order observer to reduce the first acoustic mode. Experiments showed satisfactory results of 4∼10 dB reduction of magnitude of the first acoustic mode, and support the feasibility of the proposed scheme to lightly damped acoustic field.

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References

  1. Pierce, A. D., 1981. Acoustics an Introduction to Its Physical Principles and Applications, McGraw Hill.
  2. Lyon, R. H., 1963, "Noise Reduction of Rectangular Enclosure with One Flexible Wall," J. Acous. Soc. Am. Vol. 35, pp. 1792-1797.
  3. Elliott, S. J. and Nelson, P. A., 1992, Active Control of Sound, Academic press.
  4. Dohner. J. L., Shoureshi, R., 1989. "Modal Control of Acoustic Plants," Journal of Vibration, Acoustics, Stress, and Reliability in Design, Trans. ASME. Vol.111, pp. 326-330. https://doi.org/10.1115/1.3269860
  5. Lin, J. Y., Sheu, H. Y. and Chao, S. C., 1999, "LQG/GA Design of Active Noise Controllers for a Collocated Acoustic Duct System," Journal of Sound and Vibration. Vol. 238(3), pp. 629-650.
  6. Hong, J., Akers, J. C., 1996, "Modeling, Identification, and Feedback Control of Noise in an Acoustic Duct," IEEE Trans. on Control System Technology, Vol. 4, No. 3, pp. 283-291. https://doi.org/10.1109/87.491202
  7. Franklin, G. F., Powell, J. D., 1994, Feedback Control of Dynamic Systems, Addison-Wesley Pub. Co.
  8. 김양한, 강성우, 1995. "능동소음제어-제어음장의 물리적 성질 및 제어방법론." 한국소음진동공학회지 Vol. 5. pp. 440-452.
  9. 이태연, 1993, "적응알고리즘에 의한 3차원 음향계의 능동소음제어에 관한 연구." 박사학위논문, 한양대학교 대학원.

Cited by

  1. Active Window to Reduce the Exterior Noise Flowed Through the Open Window vol.21, pp.9, 2011, https://doi.org/10.5050/KSNVE.2011.21.9.820