Eigenvalue analysis and transient response of fluid—structure interaction problems

1984 ◽  
Vol 1 (2) ◽  
pp. 151-160 ◽  
Author(s):  
M. Geradin ◽  
G. Robert ◽  
A. Huck
Keyword(s):  
Transient Response ◽  
Fluid Structure Interaction ◽  
Eigenvalue Analysis ◽  
Fluid Structure ◽  
Structure Interaction

scholarly journals Fluid-Structure Interaction Analysis on Turbulent Annular Seals of Centrifugal Pumps during Transient Process

2011 ◽  
Vol 2011 ◽  
pp. 1-22 ◽  
Author(s):  
Qinglei Jiang ◽  
Lulu Zhai ◽  
Leqin Wang ◽  
Dazhuan Wu
Keyword(s):  
Transient Process ◽  
Transient Response ◽  
Fluid Structure Interaction ◽  
Rotor System ◽  
Centrifugal Pumps ◽  
Time Step ◽  
Fluid Structure ◽  
Rotor Systems ◽  
Structure Interaction ◽  
Annular Seal

The current paper studies the influence of annular seal flow on the transient response of centrifugal pump rotors during the start-up period. A single rotor system and three states of annular seal flow were modeled. These models were solved using numerical integration and finite difference methods. A fluid-structure interaction method was developed. In each time step one of the three annular seal models was chosen to simulate the annular seal flow according to the state of rotor systems. The objective was to obtain a transient response of rotor systems under the influence of fluid-induced forces generated by annular seal flow. This method overcomes some shortcomings of the traditional FSI method by improving the data transfer process between two domains. Calculated results were in good agreement with the experimental results. The annular seal was shown to have a supportive effect on rotor systems. Furthermore, decreasing the seal clearance would enhance this supportive effect. In the transient process, vibration amplitude and critical speed largely changed when the acceleration of the rotor system increased.

Machine Learning Based Model Reduction for Fluid-Structure Interaction

2021 ◽  
Author(s):  
Vedang Patel ◽  
Srinivasan Parthasarathy ◽  
Vilas J. Shinde ◽  
Datta V. Gaitonde
Keyword(s):  
Machine Learning ◽  
Model Reduction ◽  
Fluid Structure Interaction ◽  
Fluid Structure ◽  
Structure Interaction
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