Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers
Global approval of the use of fluid viscous dampers to control the buildings response against dynamic loadings is growing. The idea behind incorporating additional dampers is that they will reduce most of the energy that is transmitted to the building during shaking event. The objective of this work...
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| Format: | Article |
| Language: | English |
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Isfahan University of Technology
2023-09-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.jafmonline.net/article_2293_1c0bdfffb186451d93d908d140de0d18.pdf |
| _version_ | 1797693801498673152 |
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| author | M. A. Bouayad Agha A. A. Ras K. Hamdaoui |
| author_facet | M. A. Bouayad Agha A. A. Ras K. Hamdaoui |
| author_sort | M. A. Bouayad Agha |
| collection | DOAJ |
| description | Global approval of the use of fluid viscous dampers to control the buildings response against dynamic loadings is growing. The idea behind incorporating additional dampers is that they will reduce most of the energy that is transmitted to the building during shaking event. The objective of this work is to identify and enhance the design parameters that control the nonlinear behaviour of fluid viscous damper subjected to sinusoidal excitation. For this, a numerical model of the flow inside the dissipater has been carried out based on finite volume method. A novel approach has been adopted to simulate elastic behaviour of the fluid, taking into account its compressibility by using the Murnaghan equation of state. A comparison between the calculations of the proposed model and the experimental tests was carried out. The model proved to be sufficiently accurate. A fluid flow analysis was then conducted to fully understand the internal mechanism of the damper. A parametric study was then performed by varying aspects such as dimensions, geometric relationships between components and fluid properties in order to better understand their effect on the non-linear behaviour of the device. The results highlight the relationship between the parameters governing the shear thinning behaviour of the fluid and the non-linearity exponent of the damper. This makes it possible to better control the non-linear behaviour of the device by selecting the appropriate silicone oil and the appropriate geometric dimensions of its components. |
| first_indexed | 2024-03-12T02:48:48Z |
| format | Article |
| id | doaj.art-00c0acc47b834feb9700c4d65bb90826 |
| institution | Directory Open Access Journal |
| issn | 1735-3572 1735-3645 |
| language | English |
| last_indexed | 2024-03-12T02:48:48Z |
| publishDate | 2023-09-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-00c0acc47b834feb9700c4d65bb908262023-09-04T05:52:07ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35721735-36452023-09-0116112142215710.47176/jafm.16.11.19402293Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous DampersM. A. Bouayad Agha0A. A. Ras1K. Hamdaoui2EOLE, Civil Engineering Department/, University of Tlemcen, Tlemcen, BP 230 13000, AlgeriaEOLE, Civil Engineering Department/, University of Tlemcen, Tlemcen, BP 230 13000, AlgeriaEOLE, Civil Engineering Department/, University of Tlemcen, Tlemcen, BP 230 13000, AlgeriaGlobal approval of the use of fluid viscous dampers to control the buildings response against dynamic loadings is growing. The idea behind incorporating additional dampers is that they will reduce most of the energy that is transmitted to the building during shaking event. The objective of this work is to identify and enhance the design parameters that control the nonlinear behaviour of fluid viscous damper subjected to sinusoidal excitation. For this, a numerical model of the flow inside the dissipater has been carried out based on finite volume method. A novel approach has been adopted to simulate elastic behaviour of the fluid, taking into account its compressibility by using the Murnaghan equation of state. A comparison between the calculations of the proposed model and the experimental tests was carried out. The model proved to be sufficiently accurate. A fluid flow analysis was then conducted to fully understand the internal mechanism of the damper. A parametric study was then performed by varying aspects such as dimensions, geometric relationships between components and fluid properties in order to better understand their effect on the non-linear behaviour of the device. The results highlight the relationship between the parameters governing the shear thinning behaviour of the fluid and the non-linearity exponent of the damper. This makes it possible to better control the non-linear behaviour of the device by selecting the appropriate silicone oil and the appropriate geometric dimensions of its components.https://www.jafmonline.net/article_2293_1c0bdfffb186451d93d908d140de0d18.pdfseismic energy dissipationfluid viscous dampernonlinearity exponentfluid shear thinningfinite volume methodcarreau-yasuda model |
| spellingShingle | M. A. Bouayad Agha A. A. Ras K. Hamdaoui Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers Journal of Applied Fluid Mechanics seismic energy dissipation fluid viscous damper nonlinearity exponent fluid shear thinning finite volume method carreau-yasuda model |
| title | Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers |
| title_full | Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers |
| title_fullStr | Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers |
| title_full_unstemmed | Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers |
| title_short | Investigation of Rheological and Geometric Properties Effect on Nonlinear Behaviour of Fluid Viscous Dampers |
| title_sort | investigation of rheological and geometric properties effect on nonlinear behaviour of fluid viscous dampers |
| topic | seismic energy dissipation fluid viscous damper nonlinearity exponent fluid shear thinning finite volume method carreau-yasuda model |
| url | https://www.jafmonline.net/article_2293_1c0bdfffb186451d93d908d140de0d18.pdf |
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