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Volume 38 Issue 2
Feb.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  (2): 268-272.
Fan Zhenzhen, Wang Tongqing, Yang Mingsuiet al. Optimization of non-local impedance parameters of viscoelastic materials[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (2): 268-272. (in Chinese)
Citation: Fan Zhenzhen, Wang Tongqing, Yang Mingsuiet al. Optimization of non-local impedance parameters of viscoelastic materials[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (2): 268-272. (in Chinese)
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Optimization of non-local impedance parameters of viscoelastic materials

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 13 Oct 2010
  • Publish Date: 29 Feb 2012
    Abstract
  • The context was devoted to the construction of a basic algebraic model for calculating non-local acoustic impedance matrix about acoustic scattering problem. A sphere laid by a certain kind of viscoelastic material was waken for example. The globally convergent method of moving asymptotes (GCMMA) was applied to optimize the parameters of the non-local acoustic impedance model and was verified. The results show that the basic algebraic model can be used to calculate the surface non-local acoustic impedance of the sphere laid viscoelastic materials. This conclusion will provide an effective research method for studying acoustic scattering of other underwater targets laid viscoelastic materials.

     

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