An energy-robust nonlinear energy sink with inerter
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Bibliographic Details
| Author(s): |
Jingjing Wang
(School of Civil Engineering, Guangzhou University, Guangzhou, China)
Bin Wang (Department of Civil Engineering, Sichuan University, Chengdu, China; State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, China) Yuqiang Zheng (China Construction Fourth Engineering Division Corp. Ltd., Guangzhou, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 275-283 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/ghent.2021.0275 | ||||
| Abstract: |
This paper presents an inerter-enhanced nonlinear mass damper developed from an asymmetric nonlinear energy sink (Asym NES), which adds an inerter between the auxiliary mass of the Asym NES and a fixed point. The size of the Asym NES-inerter (Asym NESI) can be significantly reduced due to the inerter providing a large inertial effect with limited physical mass involved. The design concept of the Asym NESI will be described first. Subsequently, the performance of the Asym NESI will be evaluated on a three-story frame structure through computational investigations. Results show that the Asym NESI exhibites strong robustness against changes in both energy level and structural frequency. Driven by the inertial effect, the Asym NESI is excellent in control performance and installation flexibility under the seismic excitation considered, demonstrating great potential as a superior control strategy for response mitigation of building structures. |
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| Keywords: |
mass damper passive control nonlinear energy sink inerter asymmetric restoring force
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| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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