期刊
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
卷 132, 期 1, 页码 124-137出版社
ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.4707489
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资金
- NIH [DK070618, EB011603]
- Acoustical Society of America
A model is presented for a pulsating spherical bubble positioned at a fixed location in a viscous, compressible liquid between parallel viscoelastic layers of finite thickness. The Green's function for particle displacement is found and utilized to derive an expression for the radiation load imposed on the bubble by the layers. Although the radiation load is derived for linear harmonic motion it may be incorporated into an equation for the nonlinear radial dynamics of the bubble. This expression is valid if the strain magnitudes in the viscoelastic layer remain small. Dependence of bubble pulsation on the viscoelastic and geometric parameters of the layers is demonstrated through numerical simulations. (C) 2012 Acoustical Society of America. [http://dx.doi.org/10.1121/1.4707489]
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