A new type of vibration isolator based on magnetorheological elastomer
In this work, a new type of adaptive vibration isolator based on magnetorheological (MR) elastomer (MRE) is presented. A new method was adopted to develop such an isolator where both a magnetic field and a preload were applied simultaneously. The magnetic attraction force was utilized to change the...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/142405 |
| _version_ | 1811678234226458624 |
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| author | Bastola, Anil Kumar Li, Lin |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Bastola, Anil Kumar Li, Lin |
| author_sort | Bastola, Anil Kumar |
| collection | NTU |
| description | In this work, a new type of adaptive vibration isolator based on magnetorheological (MR) elastomer (MRE) is presented. A new method was adopted to develop such an isolator where both a magnetic field and a preload were applied simultaneously. The magnetic attraction force was utilized to change the preload in the single degree of freedom (DOF) system. The system has such a provision that when a magnetic field is applied the preload would be automatically acting to the MR elastomer. In such a combined loading condition, the natural frequency of a single DOF system promptly shifted to a higher frequency and the stiffness of the MR elastomer was significantly increased. The stiffness of the MR elastomer system was found to be increased as high as 730 times of its original stiffness when the magnetic field of 520 mT was applied, which is a significantly higher augmentation than those reported in the literature. The combined effect of the preload and the magnetic field was profound because the magnetic interaction among the magnetic particles was simultaneously boosted by both the magnetic field and the preloading effect. It is often a large difficulty to generate a higher magnetic field in most of the MRE-based isolators. Our study showed that when a suitable preload and a suitable magnetic field are applied together, a highly tunable isolator system can be developed even with the application of a relatively lower magnetic field strength. |
| first_indexed | 2024-10-01T02:50:01Z |
| format | Journal Article |
| id | ntu-10356/142405 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:50:01Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1424052020-06-22T02:38:23Z A new type of vibration isolator based on magnetorheological elastomer Bastola, Anil Kumar Li, Lin School of Mechanical and Aerospace Engineering Institute for Sports Research Engineering::Mechanical engineering MR Elastomer Isolator In this work, a new type of adaptive vibration isolator based on magnetorheological (MR) elastomer (MRE) is presented. A new method was adopted to develop such an isolator where both a magnetic field and a preload were applied simultaneously. The magnetic attraction force was utilized to change the preload in the single degree of freedom (DOF) system. The system has such a provision that when a magnetic field is applied the preload would be automatically acting to the MR elastomer. In such a combined loading condition, the natural frequency of a single DOF system promptly shifted to a higher frequency and the stiffness of the MR elastomer was significantly increased. The stiffness of the MR elastomer system was found to be increased as high as 730 times of its original stiffness when the magnetic field of 520 mT was applied, which is a significantly higher augmentation than those reported in the literature. The combined effect of the preload and the magnetic field was profound because the magnetic interaction among the magnetic particles was simultaneously boosted by both the magnetic field and the preloading effect. It is often a large difficulty to generate a higher magnetic field in most of the MRE-based isolators. Our study showed that when a suitable preload and a suitable magnetic field are applied together, a highly tunable isolator system can be developed even with the application of a relatively lower magnetic field strength. MOE (Min. of Education, S’pore) 2020-06-22T02:38:23Z 2020-06-22T02:38:23Z 2018 Journal Article Bastola, A. K., & Li, L. (2018). A new type of vibration isolator based on magnetorheological elastomer. Materials and Design, 157, 431-436. doi:10.1016/j.matdes.2018.08.009 0261-3069 https://hdl.handle.net/10356/142405 10.1016/j.matdes.2018.08.009 2-s2.0-85050991706 157 431 436 en Materials and Design © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering MR Elastomer Isolator Bastola, Anil Kumar Li, Lin A new type of vibration isolator based on magnetorheological elastomer |
| title | A new type of vibration isolator based on magnetorheological elastomer |
| title_full | A new type of vibration isolator based on magnetorheological elastomer |
| title_fullStr | A new type of vibration isolator based on magnetorheological elastomer |
| title_full_unstemmed | A new type of vibration isolator based on magnetorheological elastomer |
| title_short | A new type of vibration isolator based on magnetorheological elastomer |
| title_sort | new type of vibration isolator based on magnetorheological elastomer |
| topic | Engineering::Mechanical engineering MR Elastomer Isolator |
| url | https://hdl.handle.net/10356/142405 |
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