Improved evaluation of the resonance spectral parameters of sound scattering from the spherical thin elastic shell

1998 ◽  
Author(s):  
O.P. Piddubniak ◽  
N.G. Piddubniak
Keyword(s):  
Elastic Shell ◽  
Sound Scattering ◽  
Spectral Parameters ◽  
Thin Elastic Shell

scholarly journals Acoustic Scattering by an Axisymmetric Thin Elastic Shell

1971 ◽  
Vol 50 (1A) ◽  
pp. 153-153
Author(s):  
S. Chang ◽  
B. S. Chambers ◽  
B. J. Maxum
Keyword(s):  
Elastic Shell ◽  
Acoustic Scattering ◽  
Thin Elastic Shell

A Solution for the Thin Elastic Shell With Surface Loads

1964 ◽  
Vol 31 (1) ◽  
pp. 91-96 ◽  
Author(s):  
C. R. Steele
Keyword(s):  
Temperature Distribution ◽  
Elastic Foundation ◽  
Wide Class ◽  
Elastic Shell ◽  
Asymptotic Series ◽  
Surface Load ◽  
Thin Elastic Shell ◽  
Curvature Coordinate ◽  
Particular Solution ◽  
Surface Loads

The problem considered is the thin elastic shell described by the equations of Novozhilov with an arbitrary but smooth midsurface that has a surface load and/or temperature distribution which varies rapidly with respect to one curvature coordinate. The particular solution is obtained in the form of an asymptotic series in powers of a parameter which is a measure of the rapidity of variation in the distribution. The wide class of problems, for which only the first term of the asymptotic series need be retained, is analogous to the beam on an elastic foundation. However, the advantage of the complex representation of Novozhilov is demonstrated by an example in which the shell is loaded and heated on strips with several conditions of constraint.

Modelling the transient interaction of a thin elastic shell with an exterior acoustic field

2008 ◽  
Vol 75 (3) ◽  
pp. 275-290 ◽  
Author(s):  
David J. Chappell ◽  
Paul J. Harris ◽  
David Henwood ◽  
Roma Chakrabarti
Keyword(s):  
Acoustic Field ◽  
Elastic Shell ◽  
Thin Elastic Shell ◽  
Transient Interaction

scholarly journals A Hybrid Analytical-Numerical Model Based on the Method of Fundamental Solutions for the Analysis of Sound Scattering by Buried Shell Structures

2011 ◽  
Vol 2011 ◽  
pp. 1-22 ◽  
Author(s):  
L. Godinho ◽  
P. Amado-Mendes ◽  
A. Pereira
Keyword(s):  
Sound Propagation ◽  
Elastic Shell ◽  
Fundamental Solutions ◽  
Point Of View ◽  
Analytical Models ◽  
Method Of Fundamental Solutions ◽  
Underwater Sound ◽  
Sound Scattering ◽  
Computational Point ◽  
Propagation Medium

Several numerical and analytical models have been used to study underwater acoustics problems. The most accurate and realistic models are usually based on the solution of the wave equation using a variety of methods. Here, a hybrid numerical-analytical model is proposed to address the problem of underwater sound scattering by an elastic shell structure, which is assumed to be circular and that is buried in a fluid seabed bellow a water waveguide. The interior of the shell is filled with a fluid that may have different properties from the host medium. The analysis is performed by coupling analytical solutions developed both for sound propagation in the waveguide and in the vicinity of the circular hollow pipeline. The coupling between solutions is performed using the method of fundamental solutions. This strategy allows a compact description of the propagation medium while being very accurate and highly efficient from the computational point of view.

Cell membrane wrapping of a spherical thin elastic shell

Soft Matter ◽  
2015 ◽  
Vol 11 (6) ◽  
pp. 1107-1115 ◽  
Author(s):  
Xin Yi ◽  
Huajian Gao
Keyword(s):  
Cell Membrane ◽  
Detailed Analysis ◽  
Theoretical Study ◽  
Elastic Shell ◽  
Adhesion Energy ◽  
Membrane Tension ◽  
Thin Elastic Shell

A theoretical study on cell membrane wrapping of a spherical thin elastic shell indicates that stiff nanocapsules achieve full wrapping easier than soft ones. The detailed analysis demonstrates how the wrapping degree depends on the size and stiffness of the nanocapsules, adhesion energy and membrane tension.

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