Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds
The compression tests under the unidirection for magnetorheological (MR) fluids have been studied at different compressive speeds. The results indicated that curves of compressive stress under different compression speeds at the applied magnetic field of 0.15 T overlapped well and were shown to be a...
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MDPI AG
2023-04-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/8/3109 |
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| author | Hongyun Wang Cheng Bi Wenfei Liu Fenfen Zhou |
| author_facet | Hongyun Wang Cheng Bi Wenfei Liu Fenfen Zhou |
| author_sort | Hongyun Wang |
| collection | DOAJ |
| description | The compression tests under the unidirection for magnetorheological (MR) fluids have been studied at different compressive speeds. The results indicated that curves of compressive stress under different compression speeds at the applied magnetic field of 0.15 T overlapped well and were shown to be an exponent of about 1 of the initial gap distance in the elastic deformation region and accorded well with the description of continuous media theory. The difference in compressive stress curves increases significantly with an increasing magnetic field. At this time, the continuous media theory description could not be accounted for the effect of compressive speed on the compression of MR fluid, which seems to deviate from the Deborah number prediction under the lower compressive speeds. An explanation based on the two-phase flow due to aggregations of particle chains resulting in much longer relaxation times at a lower compressive speed was proposed to explain this deviation. The results have guiding significance for the theoretical design and process parameter optimization for the squeeze-assisted MR devices such as MR dampers and MR clutches based on the compressive resistance. |
| first_indexed | 2024-03-11T04:47:56Z |
| format | Article |
| id | doaj.art-baf3cea1a33c460d816008f80e95524f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:47:56Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-baf3cea1a33c460d816008f80e95524f2023-11-17T20:13:14ZengMDPI AGMaterials1996-19442023-04-01168310910.3390/ma16083109Squeeze Behaviors of Magnetorheological Fluids under Different Compressive SpeedsHongyun Wang0Cheng Bi1Wenfei Liu2Fenfen Zhou3School of Intelligent Manufacture, Taizhou University, Taizhou 318000, ChinaSchool of Intelligent Manufacture, Taizhou University, Taizhou 318000, ChinaSchool of Intelligent Manufacture, Taizhou University, Taizhou 318000, ChinaSchool of Intelligent Manufacture, Taizhou University, Taizhou 318000, ChinaThe compression tests under the unidirection for magnetorheological (MR) fluids have been studied at different compressive speeds. The results indicated that curves of compressive stress under different compression speeds at the applied magnetic field of 0.15 T overlapped well and were shown to be an exponent of about 1 of the initial gap distance in the elastic deformation region and accorded well with the description of continuous media theory. The difference in compressive stress curves increases significantly with an increasing magnetic field. At this time, the continuous media theory description could not be accounted for the effect of compressive speed on the compression of MR fluid, which seems to deviate from the Deborah number prediction under the lower compressive speeds. An explanation based on the two-phase flow due to aggregations of particle chains resulting in much longer relaxation times at a lower compressive speed was proposed to explain this deviation. The results have guiding significance for the theoretical design and process parameter optimization for the squeeze-assisted MR devices such as MR dampers and MR clutches based on the compressive resistance.https://www.mdpi.com/1996-1944/16/8/3109magnetorheological fluidcompression modeviscoelastic materialDeborah number |
| spellingShingle | Hongyun Wang Cheng Bi Wenfei Liu Fenfen Zhou Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds Materials magnetorheological fluid compression mode viscoelastic material Deborah number |
| title | Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds |
| title_full | Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds |
| title_fullStr | Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds |
| title_full_unstemmed | Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds |
| title_short | Squeeze Behaviors of Magnetorheological Fluids under Different Compressive Speeds |
| title_sort | squeeze behaviors of magnetorheological fluids under different compressive speeds |
| topic | magnetorheological fluid compression mode viscoelastic material Deborah number |
| url | https://www.mdpi.com/1996-1944/16/8/3109 |
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