Efficient modal dynamic analysis of flexible beam-fluid systems. Bouaanani, N. & Miquel, B. Applied Mathematical Modelling, 39(1):99 - 116, 2015. Alternative solutions;Finite element solution;Fluid systems;Fluid-structure model;Natural vibration frequency;Seismic effect;Simplified method;Various boundary conditions;![Efficient modal dynamic analysis of flexible beam-fluid systems [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex This paper proposes an efficient simplified method to determine the modal dynamic and earthquake response of coupled flexible beam-fluid systems and to evaluate their natural vibration frequencies. The methodology developed extends available analytical solutions for mode shapes and natural vibration frequencies of slender beams with various boundary conditions to include the effects of fluid-structure interaction. The proposed method is developed for various beam boundary conditions considering lateral interaction with one or two semi-infinite fluid domains. Numerical examples are provided to illustrate the application of the proposed method, and the obtained results confirm the importance of accounting for fluid-structure interaction effects. We show that the developed procedure yields excellent results when compared to more advanced coupled fluid-structure finite element solutions, independently of the number of included modes, beam boundary conditions, and number of interacting fluid domains. The proposed simplified method can be easily implemented in day-to-day engineering practice, as it constitutes an efficient alternative solution considering the fluid-structure modeling complexities and related high expertise generally involved when using advanced finite elements.
© 2014 Elsevier Inc.
@article{20143600017342 ,
language = {English},
copyright = {Compilation and indexing terms, Copyright 2023 Elsevier Inc.},
copyright = {Compendex},
title = {Efficient modal dynamic analysis of flexible beam-fluid systems},
journal = {Applied Mathematical Modelling},
author = {Bouaanani, Najib and Miquel, Benjamin},
volume = {39},
number = {1},
year = {2015},
pages = {99 - 116},
issn = {0307904X},
abstract = {This paper proposes an efficient simplified method to determine the modal dynamic and earthquake response of coupled flexible beam-fluid systems and to evaluate their natural vibration frequencies. The methodology developed extends available analytical solutions for mode shapes and natural vibration frequencies of slender beams with various boundary conditions to include the effects of fluid-structure interaction. The proposed method is developed for various beam boundary conditions considering lateral interaction with one or two semi-infinite fluid domains. Numerical examples are provided to illustrate the application of the proposed method, and the obtained results confirm the importance of accounting for fluid-structure interaction effects. We show that the developed procedure yields excellent results when compared to more advanced coupled fluid-structure finite element solutions, independently of the number of included modes, beam boundary conditions, and number of interacting fluid domains. The proposed simplified method can be easily implemented in day-to-day engineering practice, as it constitutes an efficient alternative solution considering the fluid-structure modeling complexities and related high expertise generally involved when using advanced finite elements.<br/> © 2014 Elsevier Inc.},
key = {Fluid structure interaction},
keywords = {Finite element method;Vibration analysis;Flexible structures;Numerical methods;Boundary conditions;},
note = {Alternative solutions;Finite element solution;Fluid systems;Fluid-structure model;Natural vibration frequency;Seismic effect;Simplified method;Various boundary conditions;},
URL = {http://dx.doi.org/10.1016/j.apm.2014.04.061},
}
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