Parametrical optimization of particle dampers based on particle swarm algorithm

Zhang, Renliang; Zhang, Yantong; Zheng, Zhanpeng; Mo, Lei; Wu, Chengjun

doi:10.1016/j.apacoust.2019.107083

Cited by 21 publications

(9 citation statements)

References 14 publications

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“…Based on the reduced-order model, Lu et al 2 optimized the parameters of the tuned impact damper system by adopting the proposed performance indices and the differential evolution algorithm. After accurately predicting the acceleration response of an asymmetrical particle-damping plate using the multiphase flow theory, Zhang et al 35 optimized the parameters of the particle dampers within different frequency ranges using the particle swarm algorithm. The damping effect of the optimized particle damper was significantly improved.…”

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confidence: 99%

Optimal design of inerter‐based nonpacked particle damper considering particle rolling

Huang

Jin

2021

Earthq Engng Struct Dyn

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This paper presents an optimal design method for a nonpacked particle damper (NPPD) based on a simplified mechanical model and corresponding damping mechanism analysis. First, an equivalent inertial single-particle mechanics model (EISM) and the corresponding equivalent principle were proposed to consider the influence of particle rolling on the vibration reduction. The experimental verification of the EISM under seismic ground motion was subsequently carried out. Based on a reasonable verification of the proposed model, an analytical solution of the EISM single-degree-of-freedom structure system for the symmetric two-impacts-per-cycle motion was obtained. The influence analyses of collision distance on the damping effect and the damping mechanism under resonance and nonresonance harmonic excitation were performed. The theoretical calculation formula for the optimal collision distance for energy consumption was obtained based on the damping mechanism analysis. Finally, numerical simulations under harmonic excitation and seismic ground motion were carried out to verify the rationality and generalization of the proposed optimal collision distance. Accordingly, an optimal design method for the NPPD was proposed.Based on the proposed optimization method, the vibration reduction effect of NPPD under far-field records, near-fault pulse-like records, and near-fault nonpulse records are discussed. The analysis results show that the vibration reduction effect of the NPPD is affected by the response frequency of the uncontrolled structure. The proposed optimization method can be used as the basis for the optimization of NPPD under earthquakes. K E Y W O R D Sequivalent inertial single-particle mechanics model, equivalent principle, inerter, nonpacked particle damper, optimal collision distance, periodic motion analysis INTRODUCTIONSince Yao 1 introduced the concept of vibration control to civil engineering in 1972, structural vibration control has been recognized widely as an efficient approach to mitigate the dynamic response of civil engineering under arbitrary external excitations such as wind and earthquakes. 2 Various damping devices and systems have been widely studied in theory, and for innovation and design methodology in practical engineering applications, including vibration isolation, energy consumption, passive control, active control, and hybrid control. 3,4 As passive damping devices, multiparticle 1908

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confidence: 99%

Optimal design of inerter‐based nonpacked particle damper considering particle rolling

Huang

Jin

2021

Earthq Engng Struct Dyn

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“…It consumes vibration energy of the system through the damping effect formed by friction and collision between particles and the container wall as well as between particles, so as to achieve the purpose of suppressing vibration of the system. (Xiao and Xu, 2021;Nallusamy et al, 2020;Zhang et al, 2020). Particle dampers are arranged flexibly and insensitive to temperature and environmental changes (Lei et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Research on optimal design of vibration reduction of centrifugal air conditioning chiller based on particle damping

Xiao¹,

Shi²,

Chen³

et al. 2023

Journal of Theoretical and Applied Mechanics

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Considering vibration of centrifugal air-conditioning chillers at working conditions of 300 Hz and 386 Hz, a vibration reduction method for centrifugal air-conditioning chillers based on particle damping is proposed. Firstly, the vibration transfer path of the chillers is determined based on dynamic characteristics analysis of the chillers. Secondly, the vibration sensitive area of the compressor is determined by finite element analysis. Then the energy dissipation is calculated by the discrete element method (DEM) to determine the optimal installation scheme of the damper. Finally, the vibration reduction effect of the chillers after arranging the damper is verified by experiments.

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“…Xiao et al (2020) used the discrete element model to analyze the influence of particle damping on the ride comfort of mining dump truck and found out the optimum one. Zhang et al (2020) proposed a theoretical model of particle damping based on multiphase flow theory and used this model to predict the acceleration response of asymmetrical particle-damping plate. Recently, the semi-active particle damping technology, due to its better energy dissipation performance, is more attractive to researchers.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear analysis of the semi-active particle damping vibration isolation system based on fractional-order theory

Cheng

Xia

Lao³

et al. 2023

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PurposeThe purpose of this study is to provide some references about applying the semi-active particle damper to enhance the stability of the pipe structure.Design/methodology/approachThis paper establishes the dynamical models of semi-active particle damper based on traditional dynamical theory and fractional-order theory, respectively. The semi-active particle damping vibration isolation system applied in a pipe structure is proposed, and its analytical solution compared with G-L numerical solution is solved by the averaging method. The quantitative relationships of fractional-order parameters (a and kp) are confirmed and their influences on the amplitude-frequency response of the vibration isolation system are analyzed. A fixed point can be obtained from the amplitude-frequency response curve, and the optimal parameter used for improving the vibration reduction effect of semi-active particle damper can be calculated based on this point. The nonlinear phenomenon caused by nonlinear oscillators is also investigated.FindingsThe results show that the nonlinear stiffness parameter p will cause the jump phenomenon while p is close to 87; with the variation of nonlinear damping parameter μ, the pitchfork bifurcation phenomenon will occur with an unstable branch after the transient response; with the change of fractional-order coefficient kp, a segmented bifurcation phenomenon will happen, where an interval that kp between 18.5 and 21.5 has no bifurcation phenomenon.Originality/valueThis study establishes a mathematical model of the typical semi-active particle damping vibration isolation system according to fractional-order theory and researches its nonlinear characteristics.

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Parametrical optimization of particle dampers based on particle swarm algorithm

Cited by 21 publications

References 14 publications

Optimal design of inerter‐based nonpacked particle damper considering particle rolling

Optimal design of inerter‐based nonpacked particle damper considering particle rolling

Research on optimal design of vibration reduction of centrifugal air conditioning chiller based on particle damping

Nonlinear analysis of the semi-active particle damping vibration isolation system based on fractional-order theory

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