Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation
In this paper, cables are proposed to connect the inerter and main frame for translation-to-rotation conversion, i.e., the cable-bracing inerter system (CBIS), with a magnified mass and enhanced damping effect. This novel configuration has the benefits of deformation relaxation at the connecting joi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/19/4096 |
| _version_ | 1818777768142307328 |
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| author | Liyu Xie Xinlei Ban Songtao Xue Kohju Ikago Jianfei Kang Hesheng Tang |
| author_facet | Liyu Xie Xinlei Ban Songtao Xue Kohju Ikago Jianfei Kang Hesheng Tang |
| author_sort | Liyu Xie |
| collection | DOAJ |
| description | In this paper, cables are proposed to connect the inerter and main frame for translation-to-rotation conversion, i.e., the cable-bracing inerter system (CBIS), with a magnified mass and enhanced damping effect. This novel configuration has the benefits of deformation relaxation at the connecting joints, easy installation, and an adaptive layout for nonconsecutive-story deployment. Dynamic motion equations were established for a single degree-of-freedom (SDOF) model equipped with a CBIS. The influence of dimensionless parameters, such as inertance-mass ratio, stiffness ratio and additional damping ratio on vibration mitigation were studied in terms of displacement response and force output. A single objective and multiple objective optimal design method were developed for a CBIS-equipped structure based on a performance-oriented design framework. Finally, the mitigation effect was illustrated and verified by a numerical simulation in a time-domain. The results showed that a CBIS is an effective structural response mitigation device used to mitigate the response of structural systems under earthquake excitation. Using the proposed optimization method, CBIS parameters can be effectively designed to satisfy the target vibration control level. |
| first_indexed | 2024-12-18T11:34:04Z |
| format | Article |
| id | doaj.art-c51b0c4b9c26478fb089dbc852f8d9b4 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-18T11:34:04Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c51b0c4b9c26478fb089dbc852f8d9b42022-12-21T21:09:32ZengMDPI AGApplied Sciences2076-34172019-10-01919409610.3390/app9194096app9194096Theoretical Study on a Cable-Bracing Inerter System for Seismic MitigationLiyu Xie0Xinlei Ban1Songtao Xue2Kohju Ikago3Jianfei Kang4Hesheng Tang5Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, ChinaDepartment of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, ChinaDepartment of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, ChinaInternational Research Institute of Disaster Science, Tohoku University, Sendai 980-0845, JapanDepartment of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, ChinaDepartment of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, ChinaIn this paper, cables are proposed to connect the inerter and main frame for translation-to-rotation conversion, i.e., the cable-bracing inerter system (CBIS), with a magnified mass and enhanced damping effect. This novel configuration has the benefits of deformation relaxation at the connecting joints, easy installation, and an adaptive layout for nonconsecutive-story deployment. Dynamic motion equations were established for a single degree-of-freedom (SDOF) model equipped with a CBIS. The influence of dimensionless parameters, such as inertance-mass ratio, stiffness ratio and additional damping ratio on vibration mitigation were studied in terms of displacement response and force output. A single objective and multiple objective optimal design method were developed for a CBIS-equipped structure based on a performance-oriented design framework. Finally, the mitigation effect was illustrated and verified by a numerical simulation in a time-domain. The results showed that a CBIS is an effective structural response mitigation device used to mitigate the response of structural systems under earthquake excitation. Using the proposed optimization method, CBIS parameters can be effectively designed to satisfy the target vibration control level.https://www.mdpi.com/2076-3417/9/19/4096passive vibration controlinerter systemcable bracingparametric studyoptimal design |
| spellingShingle | Liyu Xie Xinlei Ban Songtao Xue Kohju Ikago Jianfei Kang Hesheng Tang Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation Applied Sciences passive vibration control inerter system cable bracing parametric study optimal design |
| title | Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation |
| title_full | Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation |
| title_fullStr | Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation |
| title_full_unstemmed | Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation |
| title_short | Theoretical Study on a Cable-Bracing Inerter System for Seismic Mitigation |
| title_sort | theoretical study on a cable bracing inerter system for seismic mitigation |
| topic | passive vibration control inerter system cable bracing parametric study optimal design |
| url | https://www.mdpi.com/2076-3417/9/19/4096 |
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