Design and compression-induced bandgap evolution of novel polygonal negative stiffness metamaterials

International Journal of Mechanical Sciences, Год журнала: 2023, Номер 261, С. 108658 - 108658

Опубликована: Авг. 5, 2023

Язык: Английский

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Hybrid mechanical metamaterials: advances of multi-functional mechanical metamaterials with simultaneous static and dynamic properties

Heliyon, Год журнала: 2025, Номер 11(3), С. e41985 - e41985

Опубликована: Янв. 18, 2025

Mechanical metamaterials are architected structures with unique functionalities, such as negative Poisson's ratio and stiffness, which widely employed for absorbing energy of quasi-static impact loads, giving improved mechanical response. Acoustic/elastic metamaterials, their dynamic counterparts, rely on frequency-dependent properties microstructure elements, including mass density bulk modulus, to control the propagation waves. Although introduced significant contribution solving independently static problems, they were facing certain resistance use in real-world engineering mainly because a lack integrated systems possessing both vibration attenuation performance. Advances manufacturing processes material computational science now enable creation hybrid offering multifunctionality terms simultaneous properties, them ability controlling waves while withstanding applied loading conditions. Exploring towards this direction, review paper introduces design process multifunctional properties. We emphasize still remaining challenges how can be potentially implemented solutions.

Язык: Английский

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Self-aware active metamaterial cell 3D-printed in a single process

International Journal of Mechanical Sciences, Год журнала: 2024, Номер 282, С. 109591 - 109591

Опубликована: Июль 27, 2024

Metamaterials are capable of attenuating undesired mechanical vibrations within a narrow band-gap frequency range; however, real-world applications often require adjustments due to varying loads and content. This study introduces self-aware, thermo-active metamaterial, 3D-printed in single process using thermoplastic material extrusion. The adjustment the natural region is achieved through resistive heating conductive paths, which alters stiffness base cell's resonator. Additionally, these paths facilitate detection resonator's excitation temperature, thereby eliminating need for external sensors. dynamic adaptability, experimentally demonstrated by achieving tuning range from 505 Hz 445 with 17 °C temperature difference, highlights potential metamaterials smart structures across aerospace, civil, automotive industries.

Язык: Английский

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Meta-arch structure: Designed reinforcement cage to enhance vibration isolation performance

International Journal of Mechanical Sciences, Год журнала: 2024, Номер 281, С. 109692 - 109692

Опубликована: Авг. 30, 2024

Язык: Английский

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Optimal design of a novel nested metamaterial with hybrid auxetic-locally resonant band gap for suppressing robotic grinding vibration

Mechanics of Advanced Materials and Structures, Год журнала: 2024, Номер unknown, С. 1 - 12

Опубликована: Дек. 17, 2024

To suppress vibration during robotic grinding of aero-engine blades caused by low stiffness and point-to-point movement, a novel metamaterial comprising double-nested auxetic structure local resonator is proposed. It simultaneously achieves enhanced-stiffness an ultra-low frequency wide-range band gap generated the hybrid auxetic-locally resonant characteristic. Young's modulus studied analytically numerically. A co-simulation procedure applied to obtain optimized (the bottom boundary 18.03 Hz) based on modal analysis results, verified through experimental study. The design nested provides effective strategy for suppressing vibration.

Язык: Английский

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A multi-objective design optimization strategy for acoustic/elastic metamaterials under impact loading

Structures, Год журнала: 2025, Номер 73, С. 108229 - 108229

Опубликована: Янв. 30, 2025

Язык: Английский

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Improved online secondary path modelling for multiharmonic active vibration control in shape memory polymer composites

Composite Structures, Год журнала: 2025, Номер unknown, С. 119135 - 119135

Опубликована: Март 1, 2025

Язык: Английский

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H∞ optimization of a hybrid multiple-delayed delayed resonator vibration absorber

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110381 - 110381

Опубликована: Май 1, 2025

Язык: Английский

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A disordered composite metamaterial beam optimized using NSGA-Ⅱ:a structure with an adjustable hybrid bandgap

European Journal of Mechanics - A/Solids, Год журнала: 2025, Номер unknown, С. 105731 - 105731

Опубликована: Май 1, 2025

Язык: Английский

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用于薄壁件镜像铣削振动抑制的嵌入式局域共振型超材料研究

Acta Mechanica Sinica, Год журнала: 2024, Номер 40(8)

Опубликована: Май 27, 2024

Язык: Английский

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