Compressions of magnetorheological fluids under instantaneous magnetic field and constant area
Abstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-88407-0 |
| _version_ | 1818570839772102656 |
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| author | Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou |
| author_facet | Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou |
| author_sort | Hongyun Wang |
| collection | DOAJ |
| description | Abstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally studied under different magnetic fields, different initial gap distances and different compressive velocities. The nominal yield shear stresses of the compressed MR fluid under different influential factors have been calculated. The compressive stress increased in a power law as the applied magnetic field increased, while it decreased as the initial gap distance and the compressive velocity increased. With the increase of magnetic field, the difference between the nominal yield shear stress curves increased, and the exponents of the power law increased with the increase of the magnetic field strengths. A larger initial gap distance and a lower compressive velocity resulted in a higher nominal yield shear stress under the same instantaneous magnetic field. The achieved results of the nominal yield shear stress with magnetic field seemed to deviate from the prediction of dipole model, and the chain structure aggregation effect, the sealing effect and the friction effect by compression should be considered. |
| first_indexed | 2024-12-14T13:47:09Z |
| format | Article |
| id | doaj.art-5cddc161d9ed421d9771ac419b542fa3 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T13:47:09Z |
| publishDate | 2021-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-5cddc161d9ed421d9771ac419b542fa32022-12-21T22:59:17ZengNature PortfolioScientific Reports2045-23222021-04-0111111010.1038/s41598-021-88407-0Compressions of magnetorheological fluids under instantaneous magnetic field and constant areaHongyun Wang0Cheng Bi1Yongju Zhang2Li Zhang3Fenfen Zhou4College of Aeronautics, Taizhou UniversityCollege of Aeronautics, Taizhou UniversityCollege of Aeronautics, Taizhou UniversityCollege of Aeronautics, Taizhou UniversityCollege of Aeronautics, Taizhou UniversityAbstract Compressions of magnetorheological (MR) fluids have been carried out under instantaneous magnetic fields. The yield strength of the MR fluid in compressive mode has been derived by assuming that it was a transformed shear flow in Bi-visous model. The compressive stresses have experimentally studied under different magnetic fields, different initial gap distances and different compressive velocities. The nominal yield shear stresses of the compressed MR fluid under different influential factors have been calculated. The compressive stress increased in a power law as the applied magnetic field increased, while it decreased as the initial gap distance and the compressive velocity increased. With the increase of magnetic field, the difference between the nominal yield shear stress curves increased, and the exponents of the power law increased with the increase of the magnetic field strengths. A larger initial gap distance and a lower compressive velocity resulted in a higher nominal yield shear stress under the same instantaneous magnetic field. The achieved results of the nominal yield shear stress with magnetic field seemed to deviate from the prediction of dipole model, and the chain structure aggregation effect, the sealing effect and the friction effect by compression should be considered.https://doi.org/10.1038/s41598-021-88407-0 |
| spellingShingle | Hongyun Wang Cheng Bi Yongju Zhang Li Zhang Fenfen Zhou Compressions of magnetorheological fluids under instantaneous magnetic field and constant area Scientific Reports |
| title | Compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| title_full | Compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| title_fullStr | Compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| title_full_unstemmed | Compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| title_short | Compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| title_sort | compressions of magnetorheological fluids under instantaneous magnetic field and constant area |
| url | https://doi.org/10.1038/s41598-021-88407-0 |
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