Damping of Sandwich Panels via Three-Dimensional Manufactured Multimode Metamaterial Core

Yu, Tianliang; Lesieutre, George A.

doi:10.2514/1.j055039

Cited by 22 publications

(5 citation statements)

References 23 publications

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“…Te embedded LRS design provides a solution to this problem. Yu and Johnson [67] microstructures, as shown in Figure 13(c), in them to form a locally resonant panel that can isolate external vibrations. In Zhao's [68] research, 3D printed subwavelength-scale microstructures were embedded into a chiral honeycomb base structure, as shown in Figure 13(d), to form a lightweight meta-structure which can suppress vibrations with diferent polarizations at target frequencies.…”

Section: Lrs Technologymentioning

confidence: 99%

Review of Lightweight Vibration Isolation Technologies for Marine Power Devices

Qiu,

Xu,

et al. 2024

Shock and Vibration

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Vibration induced by marine power devices (MPD) transmitting to the hull structure is one of the most important factors that cause ship vibration and underwater sound radiation. Vibration isolation technologies (VIT) are widely applied to reduce the vibration transmission. However, the overweight issue of VIT for marine power devices is a currently challenging engineering problem. The current reserve of lightweight and high-efficiency VIT for MPD and relevant theoretical and design research are seriously insufficient. This article first elaborates the causes of the overweight problem of VIT for MPD: (1) failing to grasp the quantitative law; (2) single vibration suppression mechanism. Then, it systematically sorts out the technical methods and application examples with potential to solve the overweight problem, such as dynamic optimization design, lightweight material method, novel intermediate mass structures, distributed dynamic vibration absorbers (DDVAs), locally resonant structures (LRS), particle damping (PD), quasizero stiffness isolators (QZSI), and active vibration control (AVC) technologies. Finally, the future development of lightweight VIT for MPD is prospected. It can be used as a reference for marine vessel vibration attenuation research and engineering design.

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Section: Lrs Technologymentioning

confidence: 99%

Review of Lightweight Vibration Isolation Technologies for Marine Power Devices

Qiu,

Xu,

et al. 2024

Shock and Vibration

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“…In another study, a sandwich panel with an MJ printed polymer core, unidirectional carbon-fiber composite front and back face sheets and translucent epoxy DP 190 to provide bonding between core and sheets were used. It was stated that this sandwich panel configuration increased the damping performance by nearly 25% without any optimization and it was also proposed that this configuration was a good candidate for pressurized airplane fuselage load-carrying flexural structures [ 117 ].…”

Section: Applicationsmentioning

confidence: 99%

The State of the Art of Material Jetting—A Critical Review

Gülcan¹,

Günaydın²,

Tamer

2021

Polymers

138

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Material jetting (MJ) technology is an additive manufacturing method that selectively cures liquid photopolymer to build functional parts. The use of MJ technology has increased in popularity and been adapted by different industries, ranging from biomedicine and dentistry to manufacturing and aviation, thanks to its advantages in printing parts with high dimensional accuracy and low surface roughness. To better understand the MJ technology, it is essential to address the capabilities, applications and the usage areas of MJ. Additionally, the comparison of MJ with alternative methods and its limitations need to be explained. Moreover, the parameters influencing the dimensional accuracy and mechanical properties of MJ printed parts should be stated. This paper aims to review these critical aspects of MJ manufacturing altogether to provide an overall insight into the state of the art of MJ.

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“…Researchers also explore 2-DOF TMDs [17,18] and multiple DOF (MDOF) resonators in periodic arrays to extend the functionality of wave attenuating bandgaps. Here, the MDOF resonators may be pillars [19][20][21], rubber inclusions [22], interconnected beams [23][24][25], and membrane/plate type resonators [26,27]. For the MDOF resonators applied to plates, bandgaps are induced by destructive interference between Bragg scattered waves.…”

Section: Introductionmentioning

confidence: 99%