Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control
Nonlinear energy sink (NES) has proven to be very effective in reducing the vibration response of structures. In this paper, a magnetic bistable nonlinear energy sink (BNES) that composed of a guided moving mass attached with linear springs and permanent magnets is proposed. To assess the seismic co...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9976432 |
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| _version_ | 1832549186431614976 |
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| author | Y. Y. Chen W. Zhao C. Y. Shen Z. C. Qian |
| author_facet | Y. Y. Chen W. Zhao C. Y. Shen Z. C. Qian |
| author_sort | Y. Y. Chen |
| collection | DOAJ |
| description | Nonlinear energy sink (NES) has proven to be very effective in reducing the vibration response of structures. In this paper, a magnetic bistable nonlinear energy sink (BNES) that composed of a guided moving mass attached with linear springs and permanent magnets is proposed. To assess the seismic control performance of the proposed BNES, a shear frame model equipped with the proposed BNES is compared with the same shear frame model equipped with an optimized cubic NES and with a linear tuned mass damper (TMD) system. The results show that, in the idealized situation, where the mass and stiffness is clearly defined (no uncertainty), the BNES can achieve similar performance as a thoroughly in-tuned TMD system. Moreover, in the detuned condition, due to broadband high internal resonance capability, the proposed BNES can outperform the linear TMD and the cubic NES. The study demonstrates that the proposed BNES can be used as an efficient passive vibration absorber for structural seismic control. |
| format | Article |
| id | doaj-art-a561839dc2e7440dba5cc31adb261934 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-a561839dc2e7440dba5cc31adb2619342025-02-03T06:11:59ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99764329976432Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic ControlY. Y. Chen0W. Zhao1C. Y. Shen2Z. C. Qian3MOE Key Laboratory of Earthquake Resistance, Earthquake Mitigation and Structural Safety, Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, ChinaMOE Key Laboratory of Disaster Forecast and Control in Engineering, School of Mechanics and Construction Engineering, Jinan University, Guangzhou 510632, ChinaMOE Key Laboratory of Earthquake Resistance, Earthquake Mitigation and Structural Safety, Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, ChinaMOE Key Laboratory of Earthquake Resistance, Earthquake Mitigation and Structural Safety, Earthquake Engineering Research & Test Center, Guangzhou University, Guangzhou 510405, ChinaNonlinear energy sink (NES) has proven to be very effective in reducing the vibration response of structures. In this paper, a magnetic bistable nonlinear energy sink (BNES) that composed of a guided moving mass attached with linear springs and permanent magnets is proposed. To assess the seismic control performance of the proposed BNES, a shear frame model equipped with the proposed BNES is compared with the same shear frame model equipped with an optimized cubic NES and with a linear tuned mass damper (TMD) system. The results show that, in the idealized situation, where the mass and stiffness is clearly defined (no uncertainty), the BNES can achieve similar performance as a thoroughly in-tuned TMD system. Moreover, in the detuned condition, due to broadband high internal resonance capability, the proposed BNES can outperform the linear TMD and the cubic NES. The study demonstrates that the proposed BNES can be used as an efficient passive vibration absorber for structural seismic control.http://dx.doi.org/10.1155/2021/9976432 |
| spellingShingle | Y. Y. Chen W. Zhao C. Y. Shen Z. C. Qian Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control Shock and Vibration |
| title | Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control |
| title_full | Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control |
| title_fullStr | Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control |
| title_full_unstemmed | Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control |
| title_short | Bistable Nonlinear Energy Sink Using Magnets and Linear Springs: Application to Structural Seismic Control |
| title_sort | bistable nonlinear energy sink using magnets and linear springs application to structural seismic control |
| url | http://dx.doi.org/10.1155/2021/9976432 |
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