Vibration characteristics of a sandwich plate with viscoelastic periodic cores

Sheng, Meiping; Guo, Zhiwei; Qin, Qi; He, Yuanan

doi:10.1016/j.compstruct.2018.07.110

Cited by 30 publications

(8 citation statements)

References 39 publications

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“…To this end, force harmonics and their effects on vibration (Zou et al, 2017), relationships between cutting parameters and vibration (Chuangwen et al, 2018), effect of multidimensional forces on vibration suppression (Zhao et al, 2021), and effect of periodic fluid forces on the vibration of tube bundles (Lai et al, 2021) have been analyzed to explore the effect of various forces on vibration characteristics. In addition, many studies have been directed on the presence of acoustic black holes for vibration control (Zhao and Prasad 2019), optimum design of DC motors for vibration reduction (Jafarboland and Farahabadi 2018), effect of the volume fraction of carbon nanotubes on damping properties (Patnaik et al, 2021), vibration characteristics of plates with viscoelastic periodic cores (Sheng et al, 2018), lattice structures (Syam et al, 2018), and sandwich structures with rotating carbon nanotubes (Hussain et al, 2019) to explore the effect of structural designs on vibration behaviors. Free vibration analysis of porous functionally graded nanoplates (Phung-Van et al, 2019), test evaluation of the vibration reduction effect of stone mastic asphalt mixture (Luo et al, 2021), analysis of the effect of porosity on the vibration characteristics of composite structures (Pourjabari et al, 2019), and finite element analysis (FEA) of natural fiber-reinforced composites (Saini et al, 2021) have been performed to investigate the influence of material composition on vibration behaviors.…”

Section: Introductionmentioning

confidence: 99%

Optimization of structural design with pendulum dynamic vibration absorber using genetic algorithm

Lee

Han

Kim

et al. 2022

Journal of Vibration and Control

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In this study, a genetic algorithm is introduced to determine optimal locations of pendulum dynamic vibration absorbers (PDVAs) in vibrating structures. A PDVA is composed of a pendulum system and spring-mass system, and aims to attenuate structural vibrations at two resonance frequencies, that is, the square root of stiffness over mass and square root of a length over gravity of the hosting structure. An optimization method involving nonlinear transient finite element analysis was applied to increase the engineering efficiency of PDVAs. With the incorporation of a genetic algorithm, the optimal locations of PDVAs in various structures can be determined and vibrations at the desired resonant frequencies can be attenuated. In addition, the Voronoi diagram concept is applied to realize a uniform distribution of PDVAs in vibrating structures. Several optimization examples were solved using the proposed genetic algorithm and demonstrated decreases in frequency responses by up to 98.6549%, showing the effectiveness of PDVAs in suppressing structural vibrations.

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Section: Introductionmentioning

confidence: 99%

Optimization of structural design with pendulum dynamic vibration absorber using genetic algorithm

Lee

Han

Kim

et al. 2022

Journal of Vibration and Control

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“…Basta et al [34] proposed a mechanical rotating metamaterial cantilever beam coupled to a periodic array of spring-mass-damper subsystems, to realize vibration control. In terms of the designs of the metastructure plates, Sheng et al [35] analyzed the vibration behaviors of a sandwich plate containing viscoelastic periodic cores; they found that these cores could provide a better attenuation performance than uniform viscoelastic ones. Subsequently, Sheng et al [36] optimized a lightweight nonlinear acoustic metamaterial beam to realize low-frequency, broadband, high-efficiency vibration reduction.…”

Section: Introductionmentioning

confidence: 99%

Metastructure plate with periodically embedded nonlinear vibration absorbers for nonlinear aeroelastic suppression

Tian¹,

Zhao²,

Yang³

2021

Preprint

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A metastructure plate featuring periodically embedded nonlinear vibration absorbers (NVAs) is proposed for the passive suppression of nonlinear aeroelastic responses under supersonic flow conditions. Using the von Karman large deformation theory and supersonic piston theory, the motion equations of a supersonic functionally graded material plate coupled with NVAs are derived from the Hamilton principle. Linear flutter analysis shows that the multiple-NVA design can significantly enhance the aerothermoelastic stability of the metastructure plate. Subsequently, the nonlinear aeroelastic behaviors of the plate and the energy transfer mechanism between it and the NVAs are examined using an energy-based analysis approach. The comparison of bifurcation diagrams indicates that the attachment of periodic NVAs realizes a superior suppression of vibration absorption than a single NVA. Numerical results show that the nonlinear dynamic responses of the plate can be substantially reduced via the targeted energy transfer of NVAs in the post-flutter regime. In particular, the passive control performance of the periodic NVAs does not degrade under an increase in the dynamic pressure. Furthermore, a significant reduction of more than 95% in the response amplitude of the plate can be realized by properly tuning the NVA parameters. The present work demonstrates that the metastructure design, based on periodically distributed NVAs, is effective at enhancing the flutter stability and mitigating nonlinear aeroelastic responses.

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“…[6][7][8][9][10] Many researchers focus on flexural vibration (out-of-plane) characteristics of sandwich structures as their multifunction in vibration and sound transmission attenuation. [11][12][13] In recent years, the wave propagation characteristics in elastic metamaterials have attracted extensive attention owing to their sub-wavelength physical characteristics and tremendous potential application in the low-frequency vibration isolation and sound attenuation. Early studies on elastic metamaterials are mainly concentrated on the wave propagation and subwavelength band gap characteristics for bulk waves, where elastic metamaterials are considered infinite.…”

Section: Introductionmentioning

confidence: 99%

Low-frequency broadband vibration attenuation of sandwich plate-type metastructures with periodic thin-wall tube cores

2021

Journal of Low Frequency Noise, Vibration and Active Control

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Sandwich structures are widely applied in modern industry such as aerospace, automobile as well as marine structures. However, the vibroacoustic properties of sandwich structures are adversely influenced by low effective mass. In this study, the flexural wave propagation characteristics and vibration mitigation performances of the periodic sandwich plate-type metastructures are investigated. The proposed sandwich plate-type metastructures are constituted of a sandwich plate with periodic thin-wall circular tube cores and periodically attached local stepped resonators. A finite element method combining Solid-Shell coupling numerical method and Bloch theory is presented to calculate the dispersion relations and the displacement fields of the eigenmodes of the infinite periodic sandwich plate-type metastructures. In addition, the acceleration frequency responses and vibration attenuation performances of finite periodic sandwich plate-type metastructures are numerically investigated and compared with the experimental measurements. Furthermore, the influences of geometric parameters on flexural wave band gaps are conducted. Results show that the sandwich plate-type metastructures can yield a low-frequency broad flexural wave band gap, in which the flexural wave propagation is conspicuously suppressed, resulting in significant flexural vibration attenuation. The flexural wave band gap and vibration attenuation performances can be effectively manipulated by designing geometric parameters of the sandwich plate-type metastructures.

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Vibration characteristics of a sandwich plate with viscoelastic periodic cores

Cited by 30 publications

References 39 publications

Optimization of structural design with pendulum dynamic vibration absorber using genetic algorithm

Optimization of structural design with pendulum dynamic vibration absorber using genetic algorithm

Metastructure plate with periodically embedded nonlinear vibration absorbers for nonlinear aeroelastic suppression

Low-frequency broadband vibration attenuation of sandwich plate-type metastructures with periodic thin-wall tube cores

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