Tuned mass damper on a damped structure

Fang, Heng; Liu, Lin; Zhang, Dingli; Wen, Ming

doi:10.1002/stc.2324

Cited by 27 publications

(27 citation statements)

References 22 publications

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“…For understanding the characteristics of TMDs and applying them effectively, they have been extensively studied from the 20th century 1 up to the present. [2][3][4][5] Previous studies have investigated the use of TMDs for controlling the response of buildings and civil structures to earthquakes. [6][7][8][9][10][11] The effectiveness of TMDs for reinforced concrete and steel high-rise buildings considering soil-structure interaction has been analyzed.…”

Section: Introductionmentioning

confidence: 99%

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Sano

Shirai

Yoshida

et al. 2021

Struct Control Health Monit

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Section: Introductionmentioning

confidence: 99%

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Sano

Shirai

Yoshida

et al. 2021

Struct Control Health Monit

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“…A classical passive vibration device is a tuned vibration absorber (TVA) proposed by Frahm [5]. TVA has been widely proved to be simple and efficient to mitigate unwanted vibrations [6,7]. However, it can only be effective in a narrow frequency range.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis of 1-dof and 2-dof nonlinear energy sink with geometrically nonlinear damping and combined stiffness

et al. 2021

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Nonlinear energy sink (NES) refers to a typical passive vibration device connected to linear or weakly nonlinear structures for vibration absorption and mitigation. This study investigates the dynamics of 1-dof and 2-dof NES with nonlinear damping and combined stiffness connected to a linear oscillator. For the system of 1-dof NES, a truncation damping and failure frequency are revealed through bifurcation analysis using the complex variable averaging method. The frequency detuning interval for the existence of the strongly modulated response (SMR) is also reported. For the system of 2-dof NES, it is reported in a similar bifurcation analysis that the mass distribution between NES affects the maximum value of saddle-node bifurcation. To obtain the periodic solution of the 2-dof NES system with the consideration of frequency detuning, the incremental harmonic balance method (IHB) and Floquet theory are employed. The corresponding response regime is obtained by Poincare mapping, it shows that the responses of the linear oscillator and 2-dof NES are not always consistent, and 2-dof NES can generate extra SMR than 1-dof NES. Finally, the vibration suppression effect of the proposed NES with nonlinear damping and combined stiffness is analyzed and verified by the energy spectrum, and it also shows that the 2-dof NES system demonstrates better performance.

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“…Since the WTT with the PS‐TMD device is represented by a two degree‐of‐freedom system, there are two branch resonance points with the peak values on the dynamic coefficient curve. And they are intersection of the dynamic coefficient curves under different damping coefficients 23,24 . The frequency ratio of these two branch resonance points can be obtained as (the detailed derivation is shown in Appendix B)

({, \begin{array}{c} β_{2 normalM} goodbreak= \sqrt{\frac{(2 + 2 {μ_{2}}^{2} - γ_{2}) + \sqrt{{((), γ_{2} goodbreak+ 2 {μ_{2}}^{2} goodbreak- 2)}^{2} + 8 {μ_{2}}^{2} α_{2}}}{4}} \\ β_{2 normalN} goodbreak= \sqrt{\frac{(2 + 2 {μ_{2}}^{2} - γ_{2}) - \sqrt{{((), γ_{2} goodbreak+ 2 {μ_{2}}^{2} goodbreak- 2)}^{2} + 8 {μ_{2}}^{2} α_{2}}}{4}} \end{array})

where subscript M and N represents the first and second branch resonance point, respectively.…”

Section: Analytical Model Of a Wtt With Ps‐tmdmentioning

confidence: 99%

Investigation and optimization of a pre‐stressed tuned mass damper for wind turbine tower

Liu

Lei

Wang

2021

Structural Contr & Hlth

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Summary With the development of megawatts wind turbines, excessive vibrations of the flexible and slender wind turbine tower under wind excitation have become increasingly prominent. To enhance implement ability of the passive control device for the tower, a new type of passive pre‐stressed tuned mass damper (PS‐TMD) is proposed in this study. A simplified mechanical calculation model of the tower with the PS‐TMD device is established, and the dynamic coefficient and vibration reduction mechanism are deduced through theoretical analysis. And then the design procedure including the optimal pre‐stress and damping coefficient for the proposed device is presented. The numerical simulation example shows that the tuning effect of PS‐TMD is better than the traditional tuned mass damper under the same conditions. The results from a shaking table test demonstrate that acceleration and dynamic displacement response are reduced about 20% and 30%, respectively.

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Tuned mass damper on a damped structure

Cited by 27 publications

References 22 publications

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Assessment of a seismic tuned mass damper with friction fail‐safe mechanism for the vibration control of high‐rise buildings

Dynamic analysis of 1-dof and 2-dof nonlinear energy sink with geometrically nonlinear damping and combined stiffness

Investigation and optimization of a pre‐stressed tuned mass damper for wind turbine tower

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