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Effect of active vibration control of a circular plate on sound radiation

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EN
An active control of the vibration cancellation of a circular fluid-loaded plate is analytically studied. The purpose of this paper is to examine the effect of the active vibration control strategy on the sound radiation generated by a plate. It was assumed that a planar vibrating structure located in a finite baffle and interacting with fluid is driven by a periodic force with constant amplitude. This structure radiates the acoustic waves into a surrounding fluid and a point control force is used to reduce its vibrations. The simulations of the active cancellation of the plate vibrations were made with a Simulink/Matlab computer program. The results demonstrate, that while a control law provided a significant reduction in the plate vibration, it is rather ineffective for noise attenuation.
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Bibliografia
  • [1] DORF R. C., BISHOP R. H., Modern control systems, Addison Wesley, 1997.
  • [2] FULLER C. R., ELLIOTT S. J., NELSON P. A., Active control of vibration, Academic Press, London 1996.
  • [3] HANSEN C., SNYDER S., Active control of noise and vibration, E&FN Spon, London 1997.
  • [4] LENIOWSKA L., Vibrations of circular plate interacting with an ideal compressible fluid, Archives of Acoustics, 24, 4, 435–449 (1999).
  • [5] LENIOWSKA L., LENIOWSKI R., Active vibration control of a circular plate with clamped boundary condition, Molecular and Quantum Acoustics, 22, 145–156 (2001).
  • [6] LENIOWSKA L., LENIOWSKI R., Active attenuation of sound radiation from circular fluid-loaded plate, Journal of Acoustic and Vibration, 6, 1, 35–41 (2001).
  • [7] LENIOWSKA L., Active vibration control of the circular plate with simply-supported boundary condition, Molecular and Quantum Acoustics, 24, 109–124 (2003).
  • [8] LENIOWSKA L., LENIOWSKI R., Active control of circular plate vibration by using piezoceramic actuators, Archives of Control Science, 13, 4, 391–403 (2003).
  • [9] LENIOWSKA L., LENIOWSKI R., Application of prediction methods for plate vibration suppression, Molecular and Quantum Acoustics, 25, 159–175 (2004).
  • [10] MALECKI I., Theory of waves and acoustic systems [in Polish], PWN,Warszawa 1964.
  • [11] MEIROVITCH L., A theory for the optimal control of the far-field acoustic pressure radiating from submerged structures, Journal of the Acoustical Society of America, 93, 356–362 (1993).
  • [12] RDZANEK W., Acoustic radiation of circular plate including the attenuation effect and influence of surroundings, Archives of Acoustics, 16, 3–4, 581–590 (1991).
  • [13] ROSENHOUSE G., Active noise control, WIT Press, 2001.
  • [14] SODERSDROM T., STOICA P., System identification, Prentice Hall Int., London 1989.
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Bibliografia
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bwmeta1.element.baztech-article-BAT3-0037-0027
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