Mass design of nonlinear energy sinks

Wang, Guo-Xu; Ding, Hu

doi:10.1016/j.engstruct.2021.113438

Cited by 37 publications

(8 citation statements)

References 36 publications

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“…The absorb frequency range seems to be narrow due to only the cubic nonlinearity design in our case. However, its frequency robustness can be enhanced by selecting the proper damping combination, and mass ratio [37,38]. The optimal TMD shows a trade-off characteristic of vibration mitigation.…”

Section: Frequency Performancementioning

confidence: 99%

Targeted energy transfer in a vibro-impact cubic NES: Description of regimes and optimal design

Paredes

Seguy

2023

Journal of Sound and Vibration

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Section: Frequency Performancementioning

confidence: 99%

Targeted energy transfer in a vibro-impact cubic NES: Description of regimes and optimal design

Paredes

Seguy

2023

Journal of Sound and Vibration

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“…The distinct characteristics of vibration reduction by the NES could be referred to the comprehensive and insightful review by Ding and Chen [36] . The parameters of the NES were shown to have a significant effect on vibration attenuation and design optimization was carried out to obtain desired vibration attenuation [37][38][39][40][41][42] . The NES combined with traditional vibration control methods could also achieve better vibration attenuation [23,43] .…”

Section: Introductionmentioning

confidence: 99%

Fractional nonlinear energy sinks

Zhang

Zhou

Ding

et al. 2023

Appl. Math. Mech.-Engl. Ed.

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The cubic or third-power (TP) nonlinear energy sink (NES) has been proven to be an effective method for vibration suppression, owing to the occurrence of targeted energy transfer (TET). However, TET is unable to be triggered by the low initial energy input, and thus the TP NES would get failed under low-amplitude vibration. To resolve this issue, a new type of NES with fractional nonlinearity, e.g., one-third-power (OTP) nonlinearity, is proposed. The dynamic behaviors of a linear oscillator (LO) with an OTP NES are investigated numerically, and then both the TET feature and the vibration attenuation performance are evaluated. Moreover, an analogy circuit is established, and the circuit simulations are carried out to verify the design concept of the OTP NES. It is found that the threshold for TET of the OTP NES is two orders of magnitude smaller than that of the TP NES. The parametric analysis shows that a heavier mass or a lower stiffness coefficient of the NES is beneficial to the occurrence of TET in the OTP NES system. Additionally, significant energy transfer is usually accompanied with efficient energy dissipation. Consequently, the OTP NES can realize TET under low initial input energy, which should be a promising approach for micro-vibration suppression.

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“…Among various resonance absorbers, a novel oscillation named as the nonlinear energy sink (NES) has been increasingly popular [41][42] . Owing to strict requirements of aerospace and marine engineering system, several researchers subsequently made many improvements in reducing the attached mass of resonance absorbers and enhancing their vibration control ability [43][44] . Among all forms of NESs, a novel lever-type nonlinear energy sink (LNES) [45] attracts our attention by coupling a dimensionless lever to the NES.…”

Section: Introductionmentioning

confidence: 99%

Resonance response of fluid-conveying pipe with asymmetric elastic supports coupled to lever-type nonlinear energy sink

Cao

Wang

Zang

et al. 2022

Appl. Math. Mech.-Engl. Ed.

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This paper studies the vibration absorber for a fluid-conveying pipe, where the lever-type nonlinear energy sink (LNES) and spring supports are coupled to the asymmetric ends of the system. The pseudo-arc-length method integrated with the harmonic balance method is used to investigate the steady-state responses analytically. Meanwhile, the numerical solution of the fluid-conveying pipe is calculated with the Runge-Kutta method. Moreover, a special response, called the collapsible closed detached response (CCDR), is first observed when the vibration response of mechanical structures is studied. Then, the relationship between the CCDR and the main structure primary response (PR) is obtained. In addition, the closed detached response (CDR) is also observed to research the resonance response of the fluid-conveying pipe. The appearance of either the CCDR or the CDR does affect the resonance attenuation. Furthermore, the mentioned two phenomena underline that the trend of vibration responses under external excitation goes continuous and gradual. Besides, the main advantage of the LNES is presented by contrasting the LNES with the nonlinear energy sink (NES) coupled to the same pipe system. It is found that the LNES can reduce the resonance response amplitude by 91.33%.

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Mass design of nonlinear energy sinks

Cited by 37 publications

References 36 publications

Targeted energy transfer in a vibro-impact cubic NES: Description of regimes and optimal design

Targeted energy transfer in a vibro-impact cubic NES: Description of regimes and optimal design

Fractional nonlinear energy sinks

Resonance response of fluid-conveying pipe with asymmetric elastic supports coupled to lever-type nonlinear energy sink

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