Dynamic performance analysis of a mixed‐connected inerter‐based quasi‐zero stiffness vibration isolator

Yong, Wang; Li, Hao-Xuan; Cheng, Chun; Ding, Hu; Chen, Liqun

doi:10.1002/stc.2604

Cited by 33 publications

(10 citation statements)

References 35 publications

(46 reference statements)

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“…A tuned inerter damper has a larger control force in a narrower frequency range, and can effectively reduce the peak response of the system 11 . The combination of inerter and QZS system gives full play to the advantages of both devices, while mixed-connected type vibration isolators show the best vibration isolation performance 12 , 13 . The introduction of tuned mass negative stiffness inerter damper in base-isolated structures can significantly reduce the seismic response 14 .…”

Section: Introductionmentioning

confidence: 99%

Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Kang,

Tang,

Wei

et al. 2024

Sci Rep

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Building structures are subjected to strong earthquakes, which result in lateral collisions between them. Such collisions often cause severe structural damage and exacerbate the seismic hazard risk of building structures during earthquake events. This paper discusses the application of vibration control devices based on negative stiffness inerter damper in single-story adjacent building structures. The dynamic equations of the vibration control system containing different types of negative stiffness inerter damper under seismic excitation are established as a unified model. The H2 norm theory and Monte Carlo pattern search method are used to optimize the design parameters to improve the vibration control performance of the system, and the dynamic characteristics of the system are investigated. The results demonstrate that attaching negative stiffness inerter damper to adjacent building structures can effectively improve the overall seismic capacity reserve of the building and reduce the risk of collision of adjacent building structures; improve the robustness and stability of the system, and better reduce the displacement response of the building structure under seismic excitation. In addition, the potential of NSID-based vibration control devices to convert seismic energy into usable electricity has been investigated.

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Section: Introductionmentioning

confidence: 99%

Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Kang,

Tang,

Wei

et al. 2024

Sci Rep

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“…Double-diamond bionic kangaroo leg structure. (Zhang et al, 2019a(Zhang et al, , 2019bChen et al, 2020;Wang et al, 2021;Cao et al, 2022;Liu et al, 2022), which provides a good idea for the research of this paper.…”

Section: Introductionmentioning

confidence: 99%

“…To suppress the sway vibration of the aircraft landing gear, Li Y et al added the inerter to the sway vibration suppression device and achieved good results (Li et al, 2017). Moreover, some investigators combined inerter with the NES or the X-shaped structure to reduce the overall mass of system and achieve better vibration reduction/isolation effect (Zhang et al, 2019a, 2019b; Chen et al, 2020; Wang et al, 2021; Cao et al, 2022; Liu et al, 2022), which provides a good idea for the research of this paper.…”

Section: Introductionmentioning

confidence: 99%

Modeling and characteristics study of double-diamond bionic vibration isolation system with inerter

Song

Zhang

et al. 2023

Journal of Vibration and Control

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An integrated and bionic passive vibration isolation system is proposed based on the double-diamond bionic structure and inerter to solve the problems of poor low-frequency vibration isolation performance, narrow vibration isolation frequency band, and big additional mass of current passive vibration isolation system. To analyze the low-frequency vibration isolation performance and the valuable frequency band, the nonlinear dynamic model of the system is established, then the system transmission characteristics and stability are studied. It is found that the system can reduce the amplitudes of resonant peaks, broaden the valuable frequency band, and the system stability is excellent. Seen from the performance analysis, the introduction of the inerter with smaller additional mass makes the system have better vibration isolation performance and wider effective vibration isolation frequency band. The proposed system provides a new solution for vibration control in practical engineering.

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“…Subsequently, the cam-rollerspring mechanism [13][14][15] was further studied. Recently, Wang et al [16,17] combined the diamond-shaped negative stiffness structure and inertial dampers to design a new type of inertial-based QZS isolator, which has good nonlinear stiffness characteristics and mass amplification effects and can achieve superior vibration isolation performance. In the past decade, magnets have gradually become the focus of research topics due to their noncontact and nonfriction characteristics [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Novel Quasi-Zero Stiffness Isolator under Variable Loads

Xie¹,

Niu²,

Sun³

et al. 2022

Mathematical Problems in Engineering

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The designed load of most quasi-zero stiffness (QZS) isolators is constant. The isolation performance will drop sharply once the load changes. A novel QZS isolator that can adapt to variable loads is proposed in this paper to improve the range of application of the isolator. The isolator is designed by paralleling the electromagnetic spring (ES), which provides negative stiffness, and the pneumatic spring (PS), which provides positive stiffness. The positive and negative stiffness can be adjusted by changing the pressure and coil current, which provides the possibility for the isolator to adapt to variable loads. This paper derived the conditions for the isolation system to obtain QZS characteristics, proposed the dynamic model of the isolation system, derived and verified the analytical expressions of the amplitude-frequency response and force transmissibility (FT), and discussed the change of FT and displacement transmissibility(DT) under different loads. Theoretical analysis shows that changing the pressure and coil current in the same proportion can maintain the superior low-frequency isolation performance when the load changes, thanks to the preservation of the QZS characteristics of the system after adjusting the pressure and coil current. Finally, the simulation results fg and isolation frequency band over the linear isolation system and PS isolation system. Furthermore, the proposed isolator can be adjusted online.

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Dynamic performance analysis of a mixed‐connected inerter‐based quasi‐zero stiffness vibration isolator

Cited by 33 publications

References 35 publications

Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Modeling and characteristics study of double-diamond bionic vibration isolation system with inerter

Design and Analysis of a Novel Quasi-Zero Stiffness Isolator under Variable Loads

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