A weak formulation for exterior acoustic-structure interaction problem of a spherical shell in infinite domain

2021 ◽  
Vol 92 ◽  
pp. 223-243
Author(s):  
Mingchang Niu ◽  
Jinpeng Su ◽  
Yuhong Huang ◽  
Hongxing Hua
Keyword(s):  
Spherical Shell ◽  
Infinite Domain ◽  
Weak Formulation ◽  
Acoustic Structure ◽  
Structure Interaction ◽  
Interaction Problem

Analysis of Acoustic-Structure Interaction Using a High-Order Doubly Asymptotic Approximation

2016 ◽  
Vol 24 (01) ◽  
pp. 1550021 ◽  
Author(s):  
Heekyu Woo ◽  
Young S. Shin
Keyword(s):  
Order Approximation ◽  
Stable Model ◽  
Approximation Model ◽  
Third Order ◽  
Acoustic Structure ◽  
Structure Interaction ◽  
Proposed Model ◽  
The Stability ◽  
Third Order Approximation ◽  
Interaction Problem

In this paper, a new third-order approximation model for an acoustic-structure interaction problem is introduced. The new approximation model is designed to be an accurate and a stable model for predicting the response of a submerged structure. The proposed model is obtained by combining two lower order approximation models instead of using an operator matching method. The stability of this model is checked by a modal analysis. Finally, the approximation model is coupled to the spherical shell structure, and its performance is checked by a shock analysis.

scholarly journals Investigation of a Stochastic Inverse Method to Estimate an External Force: Applications to a Wave-Structure Interaction

2012 ◽  
Vol 2012 ◽  
pp. 1-25 ◽  
Author(s):  
S. L. Han ◽  
Takeshi Kinoshita
Keyword(s):  
External Force ◽  
Inverse Method ◽  
Inverse Function ◽  
Wave Structure ◽  
Dynamic Responses ◽  
Structure Interaction ◽  
External Forces ◽  
Interaction Problem ◽  
Wave Structure Interaction

The determination of an external force is a very important task for the purpose of control, monitoring, and analysis of damages on structural system. This paper studies a stochastic inverse method that can be used for determining external forces acting on a nonlinear vibrating system. For the purpose of estimation, a stochastic inverse function is formulated to link an unknown external force to an observable quantity. The external force is then estimated from measurements of dynamic responses through the formulated stochastic inverse model. The applicability of the proposed method was verified with numerical examples and laboratory tests concerning the wave-structure interaction problem. The results showed that the proposed method is reliable to estimate the external force acting on a nonlinear system.

An implicit full Eulerian method for the fluid-structure interaction problem

2010 ◽  
Vol 65 (1-3) ◽  
pp. 150-165 ◽  
Author(s):  
S. Ii ◽  
K. Sugiyama ◽  
S. Takeuchi ◽  
S. Takagi ◽  
Y. Matsumoto
Keyword(s):  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Eulerian Method ◽  
Interaction Problem

scholarly journals Space/time multigrid for a fluid–structure-interaction problem

2008 ◽  
Vol 58 (12) ◽  
pp. 1951-1971 ◽  
Author(s):  
E.H. van Brummelen ◽  
K.G. van der Zee ◽  
R. de Borst
Keyword(s):  
Fluid Structure Interaction ◽  
Space Time ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Interaction Problem
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