Design of a Two-Degree-of-Freedom Mechanical Oscillator for Multidirectional Vibration Energy Harvesting to Power Wireless Sensor Nodes DOI Creative Commons
Hossein Shabanalinezhad, C. Svelto, P. Malcovati

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(14), P. 4531 - 4531

Published: July 13, 2024

Converting otherwise wasted kinetic energy present in the environment into usable electrical to power wireless sensor nodes, is a green strategy avoid use of batteries and wires. Most harvesters presented literature are based on exploitation one-degree-of-freedom arrangement, consisting tuned spring-mass system oscillating main direction exciting vibration source. However, if excitation changes, efficiency harvester decreases. This paper thus proposes idea curved cantilever beam with two-degree-of-freedom where two bending natural frequencies mechanical resonator designed be equal. thought lead configuration design that can used practical circumstances varies its plane. This, turn, may possibly more effective energy-harvesting solution nodes network.

Language: Английский

PDA@ BaTiO₃/CB doping enhances the piezoelectric properties of PVDF membrane for energy harvesting and sensor components DOI
Tianyi Zhang, Bo Yang,

Ming Hao

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115335 - 115335

Published: Jan. 1, 2025

Language: Английский

Citations

1
Nonlinear analysis and response identification of tristable energy harvesters under wind and base excitations DOI

Xiaoqing Ma,

He Ma, Shengxi Zhou

et al.

International Journal of Non-Linear Mechanics, Journal Year: 2025, Volume and Issue: unknown, P. 105052 - 105052

Published: Feb. 1, 2025

Language: Английский

Citations

1
Self‐Powered Fire Safety Indicator Based on Fabric‐Based Triboelectric Nanogenerator DOI Open Access
Sugato Hajra, Swati Panda,

Kushal Ruthvik Kaja

et al.

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Fire‐retardant materials‐based triboelectric nanogenerators (F‐TENG) are gaining significant interest for their dual roles in energy harvesting and self‐powered sensing, especially suited areas with limited electricity access or during fire emergencies. Despite this, there has been exploration of F‐TENGs, such as the availability new retardant materials fire‐related scenarios, where multifunctional adaptable devices increasingly demand. This study first introduces a flame‐retardant material based on white glue baking soda coated upon cotton cloth further, it is used an effective F‐TENG operating single‐electrode mode. The treated fabric obtained by simple coating drying techniques, which illustrates that fabrics demonstrate excellent self‐extinguishing properties. achieves maximum peak power 61 μW at tapping frequency 2 Hz. output TENG maintains 80% its original electrical voltage (60–47 V) after burning 6 times. subsequently utilized to create sensor indication, enhancing rescue evacuation efforts. invention expands application technology preventing building fires, could lead creation urban ecosystems improvements smart structures.

Language: Английский

Citations

0
An optimized design for dielectric layer charges distribution towards high-performance output of TENG and its multifunctional applications DOI
Yunfeng Wang, Haibao Mu, Shasha He

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162397 - 162397

Published: April 1, 2025

Language: Английский

Citations

0
Optimization of a comb-like beam piezoelectric energy harvester using the parallel separated multi-input neural network surrogate model DOI
Mengyuan Ren,

Chuan‐Kui Wang,

M. Moshrefi‐Torbati

et al.

Mechanical Systems and Signal Processing, Journal Year: 2024, Volume and Issue: 224, P. 111939 - 111939

Published: Sept. 25, 2024

Language: Английский

Citations

2
Ferroelectric catalytic BaTiO3‐based composite insoles to promote healing of infected wounds: Analysis of antibacterial efficacy and angiogenesis DOI Creative Commons

Qiong Liu,

Xudan Liu,

Linfeng Fan

et al.

Interdisciplinary materials, Journal Year: 2024, Volume and Issue: 3(5), P. 757 - 774

Published: June 18, 2024

Abstract Our feet are often subjected to moist and warm environments, which can promote the growth of harmful bacteria development severe infection in wounds located foot. As a result, there is need for new innovative strategies safely sterilize feet, when shoes worn, prevent any potential foot‐related diseases. In this paper, we have produced non‐destructive, biocompatible convenient‐to‐use insole by embedding BaTiO 3 (BT) ferroelectric material into conventional polydimethylsilane (PDMS) exploit catalytic effect antibacterial healing infected via charges generated during walking. The formation reactive oxygen species through PDMS‐BT composite shown increase oxidative stress on decrease both activity rate bacterial biofilms. addition, field enhance level transforming factor‐beta CD31 influencing endogenous electric wound, thereby promoting proliferation, differentiation fibroblasts angiogenesis. This work therefore provides route antimicrobial tissue reconstruction integrating biomaterial shoe insole, with significant health‐related applications.

Language: Английский

Citations

1
Design and Experimental Validation of a Compact Dual-Band Metamaterial Perfect Absorber for Electromagnetic Energy Harvesting Applications DOI Creative Commons
Najeeb Ullah,

Mohammad Tariqul Islam,

Ahasanul Hoque

et al.

Optical Materials, Journal Year: 2024, Volume and Issue: 157, P. 116054 - 116054

Published: Sept. 3, 2024

This article introduces, characterizes, and experimentally validates an innovative design for a compact-sized metamaterial (MM) perfect absorber (PA) electromagnetic (EM) energy harvesting (EH) applications. The design, comprised of three octagonal ring resonators made annealed copper, incorporates split gaps at 45-degree inclinations within the uppermost middle resonators. A strip line connects inner resonators, while outermost rings are filled with 50 Ω resistive load. structure is on Rogers RT5880 substrate, back side proposed entirely coated copper. achieves precise impedance matching free space, facilitating efficient absorption redirecting EM power toward loads. demonstrates peaks 99.98% 2.4 GHz 99.99% 4.9 GHz. In addition, efficiency assessed different incident (θ) polarization angles (ϕ) in both Transverse Electric (TE) Magnetic (TM) modes. Simulated efficiencies 95.33% 95.99% recorded. An experimental validation performed using 3 x array that measures 30 mm. tests carried out anechoic chamber. measured strongly correlate simulated results, indicating reliability design. absorber's compact size make it excellent option EH systems wireless sensor networks (WSNs).

Language: Английский

Citations

1
High-Performance Lightweight and Flexible PVDF-B/MXene/Chitosan Composite Aerogel for Sensitive Self-Powered Sensing DOI
Yanbo Liu, Tianyi Zhang, Bo Yang

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(21), P. 12983 - 12991

Published: Oct. 23, 2024

Piezoelectric devices are becoming increasingly attractive in areas such as wearable electronics, mobile environmental sensors, and health monitoring due to their unique capability harvest discrete mechanical energy. Nevertheless, most piezoelectric materials fabricated into low-dimensional products, which limits the performance breakthroughs application prospects of these devices. Here, a series polyvinylidenefluoride (PVDF) doped with dopamine hydrochloride@BaTiO3/MXene/chitosan (PVDF-B/MXene/CS) composite aerogel outstanding output were by combining electrospinning freeze-drying techniques. Among them, PVDF-B/MXene/CS aerogel-based electrodes exhibited rather better compared those without electrodes, while electrodeless demonstrated excellent response under various stress modes. The maintained stable voltage over 1800 cycles achieved maximum power 4.25 nW an external resistance 100 MΩ. Furthermore, device was capable charging capacitors varying capacities could easily illuminate small light emitting diode (LED) manual tapping. These showed tangible signals regarding stimuli monitoring, wrist bending, finger tapping, pedal movements. This work not only expands range but also showcases immense potential field

Language: Английский

Citations

1
Design of a Two-Degree-of-Freedom Mechanical Oscillator for Multidirectional Vibration Energy Harvesting to Power Wireless Sensor Nodes DOI Creative Commons
Hossein Shabanalinezhad, C. Svelto, P. Malcovati

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(14), P. 4531 - 4531

Published: July 13, 2024

Converting otherwise wasted kinetic energy present in the environment into usable electrical to power wireless sensor nodes, is a green strategy avoid use of batteries and wires. Most harvesters presented literature are based on exploitation one-degree-of-freedom arrangement, consisting tuned spring-mass system oscillating main direction exciting vibration source. However, if excitation changes, efficiency harvester decreases. This paper thus proposes idea curved cantilever beam with two-degree-of-freedom where two bending natural frequencies mechanical resonator designed be equal. thought lead configuration design that can used practical circumstances varies its plane. This, turn, may possibly more effective energy-harvesting solution nodes network.

Language: Английский

Citations

0