Influence of Media Loss on Semipassive Piezoelectric Sound Absorption

  • Wenqun Zhang
  • Xinyue Wu
  • Wen Cao
Conference paper


The piezoelectric system shunted with negative impedance elements theoretically has a broadband sound absorption. However, sound absorption of the system is limited by many factors. The dielectric and mechanical losses of the piezoelectric system seriously deteriorate the ability at certain frequencies. According to the sound absorption and electric elements formulas, the electric elements have imaginary parts because of the loss. The imaginary part of the capacitance has important influence on the sound absorption ability. If a paralleled resistance is introduced into the shunting circuit to form the imaginary part, it is dependent on the frequency. Sound absorption would increase only in the narrow band, and at some frequencies the system with the shunting circuit would even become unstable. Therefore, the method of forming the broadband imaginary parts must be studied further.


Piezoelectric Negative impedance Sound absorption 



This research was supported by National Natural Science Foundation of China (NSFC50605062).


  1. 1.
    Forward R.L.: Electronic Damping of Vibration in Optical Structures. Applied Optics, 18, 690–697 (1979)CrossRefGoogle Scholar
  2. 2.
    Hagood N.W., Von Flotow A.: Damping of Structural Vibrations with Piezoelectric Materials and Passive Electrical Networks. J. Sound Vib. vol. 146, pp. 243–268.(1991)CrossRefGoogle Scholar
  3. 3.
    Hagood N.W., Crawley E.F.: Experimental Investigation of Passive Enhancement of Damping for Space Structures. J. Guidance Control Dyn., vol. 14, pp: 110–9 (1991)Google Scholar
  4. 4.
    Wu S.Y.: Piezoelectric Shunts with A Parallel R–L Circuit for Structural Damping and Vibration Control. Proc. SPIE 2720, pp. 25–69(1996)Google Scholar
  5. 5.
    Wu S.Y., Bicos A.S.: Structural vibration damping experiments using improved piezoelectric shunts. Proc. SPIE 3045, pp: 40–50 (1997)Google Scholar
  6. 6.
    Wang J.J., Yao J.Y., Li Q.H.: Modeling and Characteristics for Piezoelectric Shunt Vibration Damping. Engineering Mechanics, vol.22, no. 6, pp: 218–223Google Scholar
  7. 7.
    Zhang F. Y., YAN SH. Z.: Damping Characteristics of Piezoceramics Shunted by Various Types of Electrical Circuits. J. Tsinghua Univ. (Sci &Tech), vol.45, no.8, pp:1040–1043(2005)Google Scholar
  8. 8.
    Behrens S., Fleming A.J., Moheimani: New Method for Multiple-Mode Shunt Damping Of Structureal Vibration Using A Single Piezoelectric Transducers. Proc of SPIE, vol. 4331, pp. 239–250(2001)CrossRefGoogle Scholar
  9. 9.
    Marcus N., Robert O., Karl P.: Optimization of Damping and Absorbing Performance of Shunted Piezo-Elements Utilizing Negative Capacitance. Journal of Sound and Vibration, vol.298, pp. 84–107(2006)CrossRefGoogle Scholar
  10. 10.
    Zhang W.Q., Zhang M., Wu X.Y.: Energy Dissipation Performance of A Piezoelectric Shunted System with Negative Capacitance. Journal of Vibration and Shock, vol.27 no.10, pp. 70–74(2008)Google Scholar
  11. 11.
    Zhang J.M., Chang W., Varadan V.K., Varadan V.V.: Passive Underwater Acoustic Damping Using Shunted Piezoelectric Coatings. Smart Mater. Struct., vol.10, , pp. 414–420 (2001)CrossRefGoogle Scholar
  12. 12.
    Zhang W.Q., Wu X.Y., Zhang M.: Research on Semi-Passive Shunted Piezoelectric layer for Sound Absorption with FEM. 2010 International Conference on Measuring Technology and Mechatronics Automation, March 13-14, Changsha, China.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNaval University of EngineeringHubeiChina
  2. 2.Wuhan Environmental Protection Science Research InstituteHubeiChina

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