Novel cross shape phononic crystals with broadband vibration wave attenuation characteristic: Design, modeling and testing

Panahi, Emad; Hosseinkhani, Ali; Khansanami, Mohammad Farid; Younesian, Davood; Ranjbar, Mostafa

doi:10.1016/j.tws.2021.107665

Cited by 42 publications

(9 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This has led to inverse‐design based studies that start with the desired BG configuration or functionality and employ optimization approaches to arrive at the geometry and material that is required to achieve them. Most of these efforts largely rely on topology optimization, [ 56,57,411–436 ] genetic algorithms, [ 215,432,437,438 ] or machine learning‐based approaches [ 439–446 ] and have unveiled unusual and hence previously inconceivable geometries that enable materials with enhanced BG characteristics. While these efforts are now burgeoning thanks to modern computational power, one of the earliest fruitful strides in this direction for elastic waves, can be attributed to the works of Sigmund and Søndergaard Jensen [ 411 ] in the early 2000s, who first put forward a theoretical framework showing that phononic BGs could be considerably enlarged by opening the design space of the unit cell geometry, while enforcing the boundary conditions as constraints—in other words, via topology optimization.…”

Section: Bg Engineering Through Inverse Designmentioning

confidence: 99%

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Oudich

Gerard

Deng

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

In solid state physics, a bandgap (BG) refers to a range of energies where no electronic states can exist. This concept was extended to classical waves, spawning the entire fields of photonic and phononic crystals where BGs are frequency (or wavelength) intervals where wave propagation is prohibited. For elastic waves, BGs are found in periodically alternating mechanical properties (i.e., stiffness and density). This gives birth to phononic crystals and later elastic metamaterials that have enabled unprecedented functionalities for a wide range of applications. Planar metamaterials are built for vibration shielding, while a myriad of works focus on integrating phononic crystals in microsystems for filtering, waveguiding, and dynamical strain energy confinement in optomechanical systems. Furthermore, the past decade has witnessed the rise of topological insulators, which leads to the creation of elastodynamic analogs of topological insulators for robust manipulation of mechanical waves. Meanwhile, additive manufacturing has enabled the realization of 3D architected elastic metamaterials, which extends their functionalities. This review aims to comprehensively delineate the rich physical background and the state-of-the art in elastic metamaterials and phononic crystals that possess engineered BGs for different functionalities and applications, and to provide a roadmap for future directions of these manmade materials.

show abstract

Section: Bg Engineering Through Inverse Designmentioning

confidence: 99%

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Oudich

Gerard

Deng

et al. 2022

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…Panahi, Hosseinkhani, Khansanami et al [49] carried out numerical and experimental studies on the dispersion characteristics of elastic waves of a new Maltese cross shaped…”

Section: Bioinspired Acoustic Metamaterialsmentioning

confidence: 99%

“…The dispersion curves along the borderline of the first irreducible Brillouin zone and vibration mode shapes. Reprinted from [49] with permission.…”

Section: Figurementioning

confidence: 99%

Review and prospects of metamaterials used to control elastic waves and vibrations

Dai

Zhang²,

Zheng³

et al. 2022

Front. Phys.

View full text Add to dashboard Cite

Acoustic metamaterials, artificial composite structures with exotic material properties used to control elastic waves, have become a new frontier in physics, materials science, engineering and chemistry. In this paper, the research progress and development prospect of acoustic metamaterials are reviewed. Related studies on passive acoustic metamaterials and active acoustic metamaterials are introduced and compared. Additionally, we discuss approaches to material structure design, including topology optimization approaches, as well as bio-inspired and fractal geometry-based approaches to structure design. Finally, we summarize and look forward to the prospects and directions of acoustic metamaterial research. With the development of additive manufacturing technology, the research potential of acoustic metamaterials is huge.

show abstract

“…However, the noise and vibration suppression by these structures made of commonly used materials often appears to be insufficient or requires large structure dimensions (Surjadi et al 2019;Prawoto 2012;Vigé 2010). This issue can be addressed by using cellular mechanical metamaterials (Panahi et al 2021;Qin and Yang 2019;Chekkal et al 2012) that have already been employed to overcome the structural vibration/noise problem in high-speed vehicles (Mazloomi and Ranjbar 2021;Hosseinkhani et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Full-Gradient Optimization of the Vibroacoustic Performance of (Non-)auxetic Sandwich Panels

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper aims to optimize vibro-acoustic response of (non-) auxetic sandwich panels by use of topology optimization method. First, structural noise and vibration responses of the auxetic panel with the re-entrant hexagonal honeycomb core are studied. It is proved that the interactions between the structural vibrations and induced noise are more complex when expected for a low-frequency range, and the optimized noise reduction can be obtained by a proper combination of auxetic and non-auxetic properties within a single structure. Therefore, vibro-acoustic response of the sandwich panel with a re-entrant hexagonal honeycomb core by applying a full-gradient two-dimensional geometry optimization method is analyzed and optimized. It is shown that under various random loads, the sound power level can be reduced by about 20% at the cost of a slight increase (< 5%) of the total mass. Besides, the structural Eigen frequencies are shifted to lower values that are desirable for applications, e.g., in the aerospace industry. The obtained results ensure that the proposed optimization approach delivers extra noise reduction for auxetic sandwich panels as compared to the results available in the literature.

show abstract

Novel cross shape phononic crystals with broadband vibration wave attenuation characteristic: Design, modeling and testing

Cited by 42 publications

References 69 publications

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review

Review and prospects of metamaterials used to control elastic waves and vibrations

Full-Gradient Optimization of the Vibroacoustic Performance of (Non-)auxetic Sandwich Panels

Contact Info

Product

Resources

About