International Journal of Mechanical Sciences, Год журнала: 2024, Номер unknown, С. 109857 - 109857
Опубликована: Ноя. 1, 2024
Язык: Английский
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Апрель 4, 2024
Abstract Manipulating elastic waves of all polarizations is highly challenging due to the complex behavior waves. To achieve simultaneous broadband vibration attenuation and energy harvesting across at low‐frequency ranges, a chiral mechanical metamaterial‐based harvester proposed in this study. The systematic development complete bandgap defect structure achieved through theoretical eigenfrequency analysis numerical simulations. incorporated induce modes for wave within region, ensuring their compatibility with overall shape structure. metamaterial (CMMD) demonstrated significant performance improvements, achieving electrical output power enhancements that are 20.5 times flexural 511.4 longitudinal‐torsional compared defectless metamaterial. This study accentuates thoughtful design multifaceted utility metamaterials, paving way application not only but also various polarizations.
Язык: Английский
Процитировано
22
Smart Materials and Structures, Год журнала: 2023, Номер 32(12), С. 123001 - 123001
Опубликована: Окт. 16, 2023
Abstract Guided waves, elastic waves propagating through bounded structures, play a pivotal role in various applications, including ultrasonic non-destructive testing and structural health monitoring. Recently, metamaterials artificially engineered to exhibit physical properties not typically seen nature have emerged as ground-breaking approach, heralding new era guided wave-based technologies. These offer innovative solutions overcome the inherent constraints of traditional technology. This paper comprehensively reviews from their fundamental principles diverse focusing on transformative impact wave manipulation.
Язык: Английский
Процитировано
30
International Journal of Mechanical Sciences, Год журнала: 2023, Номер 257, С. 108538 - 108538
Опубликована: Июнь 15, 2023
Язык: Английский
Процитировано
24
International Journal of Mechanical Sciences, Год журнала: 2024, Номер 266, С. 108975 - 108975
Опубликована: Янв. 2, 2024
Язык: Английский
Процитировано
12
International Journal of Mechanical Sciences, Год журнала: 2024, Номер 280, С. 109633 - 109633
Опубликована: Авг. 8, 2024
Язык: Английский
Процитировано
5
International Journal of Mechanical Sciences, Год журнала: 2023, Номер 257, С. 108563 - 108563
Опубликована: Июнь 17, 2023
Язык: Английский
Процитировано
11
Results in Physics, Год журнала: 2024, Номер 63, С. 107870 - 107870
Опубликована: Июль 10, 2024
Piezoelectric energy harvesting of mechanical waves exhibits great potential applications in electricity generation for low-powered electronic devices. In this work, the metasurface-assisted phononic cavity is proposed enhancement piezoelectric elastic flexural waves. By employing two-dimensional plate-type metamaterial, we construct a that possesses ability to localize and amplify On other hand, purpose wave focusing, sparse metasurface inversely designed based on interference theory through particle swarm optimization algorithm. For collaborative manipulation, set front cavity. Additionally, patches are attached within cavities. The characteristics studied by using finite element method. comparison, conventional (i.e., without metasurface) reference bare plate also considered. Due wavefront control metasurface, more guided into region. Thus, compared with plate, power amplification ratios 102 7, respectively. electrical outputs remarkably boosted assistance metasurface.
Язык: Английский
Процитировано
4
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(47), С. 65635 - 65644
Опубликована: Ноя. 14, 2024
Restricted by the physical properties of materials, most traditional metasurfaces (MSs) cannot achieve transparent stealth in visible spectrum. Although some for holography have been designed, there is no standard method evaluating advancement wavefront manipulation under different design algorithms. Here, a complex-amplitude metasurface with optical transparency (OT) and full-space presented millimeterwave band. Through frequency multiplexing, two holographic images "HOLO" "GRAM" high quality are achieving signal-to-noise ratios 14.6 14.4 dB, respectively. The 64 × bilayered consists glass poly(ethylene terephthalate) (PET) substrates three metallic mesh layers. By change opening size oriented angle split rings, phase amplitude modulations independently realized. Besides, new provided to assess superiority system near-field energy regulation. prototype was fabricated using micro-nano-technology tested. Two were experimentally demonstrated show good agreement theoretical calculations simulated results. With advantages OT customization, proposed holograms frequency-multiplexed may find prospective application aspects target perception, multichannel data storage encryption, many other related fields.
Язык: Английский
Процитировано
4
International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110043 - 110043
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0
iScience, Год журнала: 2025, Номер 28(3), С. 111995 - 111995
Опубликована: Фев. 15, 2025
As an artificially manufactured planar device, a metasurface structure can produce unusual electromagnetic responses by harnessing four basic characteristics of the light wave. Traditional design processes rely on numerical algorithms combined with parameter optimization. However, such methods are often time-consuming and struggle to match actual responses. This paper aims give unique perspective classify artificial intelligence(AI)-enabled design, dividing it into forward inverse designs according mapping relationship between variables performance. Forward driven intelligent algorithms; neural networks one principal ways realize reverse design. reviews recent progress in AI-enabled examining principles, advantages, potential applications. A rich content detailed comparison help build holistic understanding Moreover, authors believe that this systematic review will pave way for future research selection practical
Язык: Английский
Процитировано
0