Analytical Investigation of Electromechanical Hierarchical Metamaterials for Vibration Attenuation and Energy Harvesting DOI Creative Commons

Ashenafi Abebe Mebrat,

Joshua LeGrande,

Oumar Barry

и другие.

Applied Sciences, Год журнала: 2025, Номер 15(7), С. 3464 - 3464

Опубликована: Март 21, 2025

This work presents a theoretical study of outward and inward hierarchical metamaterials. Hierarchically configured multiple electromechanical resonators with shunt circuits are implemented, maintaining the same overall mass as that comparable single resonator metamaterial. The governing equations motion for configurations derived. Dispersion relations determined each configuration varying system parameters to identify key design assess their impact on system’s dynamic behavior. Furthermore, outer displacement transmissibility normalized total power output finite chain metamaterials compared observe vibration attenuation energy harvesting capacity. results reveal band structure depends type, masses, coupling coefficient, resistance circuit. first-order hierarchy offers greater gap width, increased bandwidth, flexibility in tuning structure. Finite analysis demonstrates that, baseline performance zero-order hierarchy, exhibits superior abilities mass. ideal requires careful consideration masses configuration, circuits. provides foundation designing lightweight simultaneous harvesting.

Язык: Английский

Piezoelectric Biomaterials for Use in Bone Tissue Engineering—A Narrative Review DOI Open Access
Sandeep Choudhury, Debaprasad Das, Sandipan Roy

и другие.

Journal of Biomedical Materials Research Part B Applied Biomaterials, Год журнала: 2025, Номер 113(4)

Опубликована: Март 17, 2025

ABSTRACT To examine natural bone's bioelectrical traits, notably its piezoelectricity, and to look into how these characteristics influence bone growth repair. In the context of exploring potential piezoelectric biomaterials, such as biopolymers bio‐ceramics, towards orthopedic regeneration applications, research seeks evaluate significance piezoelectricity‐driven osteogenesis. The paper reviews recent on electrical dielectric properties, surface polarization/electrical stimulation effects interacting with cell activity effectiveness biomaterials support tissues' regenerative process. study includes a number materials, collagen, polyvinylidene fluoride (PVDF) barium titanate. applications organic polymers, polymers are particularly highlighted. Piezoelectric being shown in studies enhance cellular metabolism vitro well promote tissues vivo, especially when paired electric field or interface polarization. bio‐ceramics like magnesium silicate titanate, collagen PVDF, have possibilities for applications. However, there several challenges regarding manufacturing specific compositions having desired properties. This review highlighted special emphasis bioceramics. Therefore, types materials huge because they can mimic properties allow better advances tissue engineering medicine. date, little is known about their mechanism action, modifications needed improve efficacy clinical uptake.

Язык: Английский

Процитировано

0

Adaptive Sound Insulation of Piezoelectric Metastructure Shells around Ring and Coincidence Frequencies DOI

Huaibing Yuan,

Yisheng Zheng,

W.J. Feng

и другие.

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110175 - 110175

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Analytical Investigation of Electromechanical Hierarchical Metamaterials for Vibration Attenuation and Energy Harvesting DOI Creative Commons

Ashenafi Abebe Mebrat,

Joshua LeGrande,

Oumar Barry

и другие.

Applied Sciences, Год журнала: 2025, Номер 15(7), С. 3464 - 3464

Опубликована: Март 21, 2025

This work presents a theoretical study of outward and inward hierarchical metamaterials. Hierarchically configured multiple electromechanical resonators with shunt circuits are implemented, maintaining the same overall mass as that comparable single resonator metamaterial. The governing equations motion for configurations derived. Dispersion relations determined each configuration varying system parameters to identify key design assess their impact on system’s dynamic behavior. Furthermore, outer displacement transmissibility normalized total power output finite chain metamaterials compared observe vibration attenuation energy harvesting capacity. results reveal band structure depends type, masses, coupling coefficient, resistance circuit. first-order hierarchy offers greater gap width, increased bandwidth, flexibility in tuning structure. Finite analysis demonstrates that, baseline performance zero-order hierarchy, exhibits superior abilities mass. ideal requires careful consideration masses configuration, circuits. provides foundation designing lightweight simultaneous harvesting.

Язык: Английский

Процитировано

0