1-DOF Model for Fluid-Structure-Interaction Vibration Analysis
In this paper an attempt to provide a single degree of freedom lumped model for fluid structure interaction (FSI) dynamical analysis will be presented. The model can be used to clarify some important concept in the FSI dynamics such as the added mass, added stiffness, added damping, wave coupling ,...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2023-07-01
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| Series: | Journal of Engineering |
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| Online Access: | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2592 |
| _version_ | 1797782981134254080 |
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| author | Mahmud Rasheed Ismail |
| author_facet | Mahmud Rasheed Ismail |
| author_sort | Mahmud Rasheed Ismail |
| collection | DOAJ |
| description |
In this paper an attempt to provide a single degree of freedom lumped model for fluid structure interaction (FSI) dynamical analysis will be presented. The model can be used to clarify some important concept in the FSI dynamics such as the added mass, added stiffness, added damping, wave coupling ,influence mass coefficient and critical fluid depth . The numerical results of the model show that the natural frequency decrease with the increasing of many parameters related to the structure and the fluid .It is found that the interaction phenomena can become weak or strong depending on the depth of the containing fluid .The damped and un damped free response are plotted in time domain and phase plane for different model parameters It is found that the vibration free response is still sinusoidal for weak FSI coupling ,however for strong coupling it behaves as modulated periodic response .To justify some of the theoretical aspects such as; the effects of the fluid density and the interact shape on the natural frequency an experiment was conducted .The results of the experiment shows a good agreement with the theory where the error is not exceeded 7%.
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| first_indexed | 2024-03-13T00:19:37Z |
| format | Article |
| id | doaj.art-a9179754bfd04396962b206da5c3c064 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-13T00:19:37Z |
| publishDate | 2023-07-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-a9179754bfd04396962b206da5c3c0642023-07-11T18:33:55ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392023-07-01201210.31026/j.eng.2014.12.071-DOF Model for Fluid-Structure-Interaction Vibration AnalysisMahmud Rasheed Ismail In this paper an attempt to provide a single degree of freedom lumped model for fluid structure interaction (FSI) dynamical analysis will be presented. The model can be used to clarify some important concept in the FSI dynamics such as the added mass, added stiffness, added damping, wave coupling ,influence mass coefficient and critical fluid depth . The numerical results of the model show that the natural frequency decrease with the increasing of many parameters related to the structure and the fluid .It is found that the interaction phenomena can become weak or strong depending on the depth of the containing fluid .The damped and un damped free response are plotted in time domain and phase plane for different model parameters It is found that the vibration free response is still sinusoidal for weak FSI coupling ,however for strong coupling it behaves as modulated periodic response .To justify some of the theoretical aspects such as; the effects of the fluid density and the interact shape on the natural frequency an experiment was conducted .The results of the experiment shows a good agreement with the theory where the error is not exceeded 7%. https://joe.uobaghdad.edu.iq/index.php/main/article/view/2592FSI, mass influence coefficient , interact shape ,added mass ,added damping |
| spellingShingle | Mahmud Rasheed Ismail 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis Journal of Engineering FSI, mass influence coefficient , interact shape ,added mass ,added damping |
| title | 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis |
| title_full | 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis |
| title_fullStr | 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis |
| title_full_unstemmed | 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis |
| title_short | 1-DOF Model for Fluid-Structure-Interaction Vibration Analysis |
| title_sort | 1 dof model for fluid structure interaction vibration analysis |
| topic | FSI, mass influence coefficient , interact shape ,added mass ,added damping |
| url | https://joe.uobaghdad.edu.iq/index.php/main/article/view/2592 |
| work_keys_str_mv | AT mahmudrasheedismail 1dofmodelforfluidstructureinteractionvibrationanalysis |