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| Content Provider | IET Digital Library |
|---|---|
| Author | Liu, Yuan Wang, Feng Han, Dedong |
| Abstract | The performance of non-linear absorbers for suppression of the structure vibrations depends on the setting of the absorbers' parameters to a certain extent. A slowly varying dynamical system under investigation in the existing work is comprised of a linear oscillator coupled with an attached non-linear absorber called non-linear energy sink (NES). Slowly varying equations of the coupled system are achieved first by using the complex averaging method, and trajectory features of the slowly varying system are analysed. On that basis, the non-linear cubic stiffness design method is proposed. Considering that different damping coefficients of the NES impose a large impact on both system energy transfer and energy dissipation between the main structure and the NES, necessary damping conditions for the targeted energy transfer (TET) are obtained by using the phase trajectory analysis. With the proposed method, structure parameters of the NES are designed to get maximum absorbing effects. Finally, all these conclusions about parameters design for the NES are verified by simulation analysis. The simulation results demonstrate that the optimal vibration reduction effectiveness can be achieved with reasonably designed stiffness and damping. |
| Starting Page | 323 |
| Ending Page | 327 |
| Page Count | 5 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 13, Jan (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9039 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-22 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Absorbers Coupled System Damping Energy Dissipation Linear Oscillator Mechanical Engineering Mechanical Structure NES Nonlinear Absorber Nonlinear Cubic Stiffness Design Method Nonlinear Energy Sink Oscillator Parameter Design Phase Trajectory Analysis Slowly Varying Dynamical System Structural Engineering Structure Parameter System Energy Transfer Targeted Energy Transfer TET Vibration Control Vibrations And Shock Wave |
| Content Type | Text |
| Resource Type | Article |
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