Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms
In practical engineering applications, the vibration is often generated in various directions and can be harmful to the engineering equipment. Thus, it is necessary to develop vibration isolators that can reduce vibration in multiple directions. In this paper, we propose a planar two-dimensional vib...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-12-01
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| Series: | Micromachines |
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/10 |
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| author | Ruizhe Zhu Jinpeng Hu Long Huang Leiyu Zhang Guangan Ren |
| author_facet | Ruizhe Zhu Jinpeng Hu Long Huang Leiyu Zhang Guangan Ren |
| author_sort | Ruizhe Zhu |
| collection | DOAJ |
| description | In practical engineering applications, the vibration is often generated in various directions and can be harmful to the engineering equipment. Thus, it is necessary to develop vibration isolators that can reduce vibration in multiple directions. In this paper, we propose a planar two-dimensional vibration isolator based on compliant mechanisms. The proposed mechanism consists of two negative stiffness-compliant modules and two positive stiffness-compliant modules, which leads to the quasi-zero stiffness (QZS) property in the mechanism. The dynamic model is established by using the third-order Taylor expansion and the harmonic balance method. Based on the dynamic model, the influence of different parameters on the displacement transmissibility is discussed, including damping ratio, system stiffness, and excitation amplitude. Finally, we conducted the vibration isolation experiments and obtained the displacement transmissibility of the isolator. The results verify that the proposed isolator has good isolation performance for low-frequency vibration. |
| format | Article |
| id | doaj-art-2f5b598daa5546dd82c7dd3df4f95cfc |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-2f5b598daa5546dd82c7dd3df4f95cfc2025-01-24T13:41:49ZengMDPI AGMicromachines2072-666X2024-12-011611010.3390/mi16010010Planar Two-Dimensional Vibration Isolator Based on Compliant MechanismsRuizhe Zhu0Jinpeng Hu1Long Huang2Leiyu Zhang3Guangan Ren4International College of Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaSchool of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaSchool of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaCollege of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, ChinaSchool of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaIn practical engineering applications, the vibration is often generated in various directions and can be harmful to the engineering equipment. Thus, it is necessary to develop vibration isolators that can reduce vibration in multiple directions. In this paper, we propose a planar two-dimensional vibration isolator based on compliant mechanisms. The proposed mechanism consists of two negative stiffness-compliant modules and two positive stiffness-compliant modules, which leads to the quasi-zero stiffness (QZS) property in the mechanism. The dynamic model is established by using the third-order Taylor expansion and the harmonic balance method. Based on the dynamic model, the influence of different parameters on the displacement transmissibility is discussed, including damping ratio, system stiffness, and excitation amplitude. Finally, we conducted the vibration isolation experiments and obtained the displacement transmissibility of the isolator. The results verify that the proposed isolator has good isolation performance for low-frequency vibration.https://www.mdpi.com/2072-666X/16/1/10compliant mechanismsnegative stiffnesspositive stiffnessvibration isolatordynamics |
| spellingShingle | Ruizhe Zhu Jinpeng Hu Long Huang Leiyu Zhang Guangan Ren Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms Micromachines compliant mechanisms negative stiffness positive stiffness vibration isolator dynamics |
| title | Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms |
| title_full | Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms |
| title_fullStr | Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms |
| title_full_unstemmed | Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms |
| title_short | Planar Two-Dimensional Vibration Isolator Based on Compliant Mechanisms |
| title_sort | planar two dimensional vibration isolator based on compliant mechanisms |
| topic | compliant mechanisms negative stiffness positive stiffness vibration isolator dynamics |
| url | https://www.mdpi.com/2072-666X/16/1/10 |
| work_keys_str_mv | AT ruizhezhu planartwodimensionalvibrationisolatorbasedoncompliantmechanisms AT jinpenghu planartwodimensionalvibrationisolatorbasedoncompliantmechanisms AT longhuang planartwodimensionalvibrationisolatorbasedoncompliantmechanisms AT leiyuzhang planartwodimensionalvibrationisolatorbasedoncompliantmechanisms AT guanganren planartwodimensionalvibrationisolatorbasedoncompliantmechanisms |