Abstract
In many applications, installing an absorber/tuned mass damper (TMD) is an effective method of vibration control. To overcome the drawbacks of traditional TMDs and improve the overall performance, a bio-inspired structure (X-shaped structure) is used for a tunable and nonlinear TMD (X-absorber). In this study, multi-variable optimization, tunable stiffness and damping properties, nonlinear influence and vibration suppression performance of this novel X-absorber are systematically studied. Compared with traditional absorbers this X-absorber can provide beneficial nonlinear damping which can significantly improve system parametric robustness, tunable quasi-zero stiffness for a widen vibration suppression bandwidth with a widened anti-resonance, effectively suppress resonant peaks of ultra-low frequencies, and eliminate potential instabilities (e.g., bifurcation, detached resonance curves) inherently existing in Duffing oscillators. In the experimental testing, the robustness and effectiveness of the optimized X-absorber with different excitations are validated with comparison of a traditional spring-mass absorber. The X-absorber would provide a more reliable and flexible solution to many vibration suppression applications.
Original language | English |
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Title of host publication | Advances in Applied Nonlinear Dynamics, Vibration and Control - 2021 |
Subtitle of host publication | The proceedings of 2021 International Conference on Applied Nonlinear Dynamics, Vibration and Control (ICANDVC2021) |
Editors | Xingjian Jing, Hu Ding, Jiqiang Wang |
Place of Publication | Singapore |
Publisher | Springer |
Pages | 1062-1077 |
ISBN (Electronic) | 978-981-16-5912-6 |
ISBN (Print) | 9789811659119, 978-981-16-5914-0 |
DOIs | |
Publication status | Published - 2022 |
Externally published | Yes |
Event | International Conference on Applied Nonlinear Dynamics, Vibration and Control (ICANDVC-2021) - Hong Kong Polytechnic University, Hong Kong Duration: 23 Aug 2021 → 25 Aug 2021 http://www.icandvc.com/ |
Publication series
Name | Lecture Notes in Electrical Engineering |
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Volume | 799 |
ISSN (Print) | 1876-1100 |
ISSN (Electronic) | 1876-1119 |
Conference
Conference | International Conference on Applied Nonlinear Dynamics, Vibration and Control (ICANDVC-2021) |
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Abbreviated title | ICANDVC2021 |
Country/Territory | Hong Kong |
Period | 23/08/21 → 25/08/21 |
Internet address |
Research Keywords
- Nonlinear damping
- Nonlinear stiffness
- Tuned mass damper
- Vibration absorber