Vibration reduction in truss core sandwich plate with internal nonlinear energy sink

Chen, Jianen; Zhang, Wei; Yao, Minghui; Liu, Jun; Sun, Min

doi:10.1016/j.compstruct.2018.03.048

Cited by 81 publications

(13 citation statements)

References 25 publications

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“…The energy can be transferred from the low-order mode to the high-order mode, which had stronger damping dissipation capacity. Chen et al 51 used the built-in NES to reduce the vibration of the truss core sandwich plate and achieved good dynamic performance. Zhou et al 52 used the NES to control the nonlinear vibration of cantilevered pipe.…”

Section: Vibration Suppressionmentioning

confidence: 99%

Nonlinear energy sink applied for low-frequency noise control inside acoustic cavities: A review

Shao

Yang

Wang

et al. 2020

Journal of Low Frequency Noise, Vibration and Active Control

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In recent years, the research of nonlinear energy sink on low-frequency noise control has become a hotspot. By adding a nonlinear energy sink into one primary system, it is possible to obtain the significant target energy transfer characteristics. The target energy transfer can be defined for which the vibration energy of the primary structure is irreversibly transferred to the nonlinear energy sink, quickly concentrated in the nonlinear energy sink and dissipated by the nonlinear energy sink damping. This method has significant advantages to control the broadband low-frequency noise inside the transportations (such as cars, trains, airplanes, etc.). Compared with traditional noise reduction methods such as adding the damping and acoustical materials, the nonlinear energy sink has a simple and lightweight structure. The paper reviews the nonlinear characteristics of the nonlinear energy sink, the main theoretical research methods and the applications of vibration and noise control, and discusses the application of the nonlinear energy sink for the control of low-frequency noise inside the three-dimensional acoustic cavities, which provides the reference and guidance for the low-frequency noise control inside the acoustic cavities of the mean of transportation.

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Section: Vibration Suppressionmentioning

confidence: 99%

Nonlinear energy sink applied for low-frequency noise control inside acoustic cavities: A review

Shao

Yang

Wang

et al. 2020

Journal of Low Frequency Noise, Vibration and Active Control

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“…Li and Lyu (2014) and Li et al (2018) realized the active vibration suppression of the lattice core sandwich structure by using the MFC actuators and PVDF sensors. In order to passively control the vibration of continuous systems, some researchers conducted the application of nonlinear energy sink (NES) for achieving the vibration attenuation of sandwich structures (Zhang et al, 2016;Chen et al, 2017Chen et al, , 2018Guo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Study of the Vibration Dynamics of a 3D-Printed Sandwich Beam With an Hourglass Lattice Truss Core

Guo

Jiang

et al. 2021

Front. Mech. Eng.

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3D printing (also known as additive manufacturing) has been developed for more than 30 years. The applications of 3D printing have been increasingly extended to a variety of engineering fields in recent years. The sandwich material with a high strength and overall low density is a kind of artificial material that has been extensively used in various industrial and daily life applications. This paper presents a comprehensive vibration analysis and passive control technique for a cantilevered sandwich beam with an hourglass lattice truss core fabricated with 3D printing technology. The governing equation of the beam is established by using a homogenized model and the Hamilton's principle, from which the natural frequencies are determined. The theoretical model is verified by the results from the existing literature and the finite element analysis. The frequency response of the sandwich beam measured experimentally further validates the proposed model. Subsequently, a non-linear energy sink (NES) is proposed for being employed to passively suppress the vibration of the sandwich beam. A parametric study based on the theoretical model confirms the viability of using NES to effectively control the vibration of the sandwich beam. This work presents a good demonstration of using 3D printing technology for fabricating sandwich beams with a complicated lattice core. More importantly, some guidelines regarding the dynamic analysis of sandwich beams are provided. In addition, the analytical method presented in this work provides a potential means to theoretically explore the advantages of using sandwich beams for energy harvesting in the future.

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“…[1][2][3][4][5] In addition to their mechanical properties of sandwich structures, increasing attention has been paid to vibration behaviors and sound transmission properties of sandwich structures because lightweight and stiff structures usually suffer from poor vibro-acoustic performances at low frequency resulting in adverse impact on human comfortableness. [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.…”

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 reduction in truss core sandwich plate with internal nonlinear energy sink

Cited by 81 publications

References 25 publications

Nonlinear energy sink applied for low-frequency noise control inside acoustic cavities: A review

Nonlinear energy sink applied for low-frequency noise control inside acoustic cavities: A review

Theoretical and Experimental Study of the Vibration Dynamics of a 3D-Printed Sandwich Beam With an Hourglass Lattice Truss Core

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

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