Buscar
Mostrando ítems 31-40 de 711
Uncertainties propagation and global sensitivity analysis of the frequency response function of piezoelectric energy harvesters
(Institute of Physics, 2017)
The goal of this work is to describe a framework to propagate uncertainties in piezoelectricenergy harvesters(PEHs). These uncertainties are related to the incomplete knowledge of themodel parameters. The framework presented ...
Design of a rectenna for energy harvesting on Wi-Fi at 2.45 GHz
(IEEE, 2020)
This research presents the design of a rectenna to harvest electromagnetic energy from Wi-Fi at 2.45 GHz. Tuning techniques were applied on the dimensions of the elements of the rectenna in order to improve its performance. ...
On energy harvesting form time-limited excitations: Simulations and case study
(2014-01-01)
Linear resonant harvesters have been the most common type of generators used to scavenge energy from mechanical vibrations. When subject to harmonic excitation, good performance is achieved once the device is tuned so that ...
Concepção de um circuito energy harvesting aplicado a redes de sensores sem fio para sistemas de iluminação
(Universidade Federal de Santa MariaBREngenharia ElétricaUFSMPrograma de Pós-Graduação em Engenharia Elétrica, 2014-08-29)
This thesis aims to present the design and development of an Energy Harvesting (EH) circuit applied to wireless sensor networks (WSN), especially those that perform functions in lighting systems, such as monitoring or ...
A piezoelectric energy harvester for rotating environment using a linked E-shape multi-beam
(Elsevier, 2019-02)
This paper analyzes the effects of rotational motion on the performance of an innovative piezoelectric energy harvester (PEH) operating in a very low rotation speed (0.5 to 3 Hz) environment. The rotational energy harvester ...
Mechanized harvesting of bamboo plantations for energy production: Preliminary tests with a cut-and-shred harvester
(2016-10-01)
Bamboo plantations can help expanding biomass production to marginal lands, while requiring limited chemical and labour inputs. However, the development of a modern industrial bamboo energy chain requires an adequate level ...
Dynamic Design of Piezoelectric Laminated Sensors and Actuators using Topology Optimization
(SAGE PUBLICATIONS LTD, 2010)
Sensors and actuators based on piezoelectric plates have shown increasing demand in the field of smart structures, including the development of actuators for cooling and fluid-pumping applications and transducers for novel ...
Projeto e análise de circuitos de coleta de energia de rádio frequência para aplicações IOT
(Universidade do Vale do Rio dos Sinos, 2021-07-29)
This work presents an overview of RF Energy Harvesting devices, pointing out the advantages and disadvantages of the main topologies used, as well as presenting the most relevant points for the design of Energy Harvesting ...
Projeto e análise de circuitos de coleta de energia de rádio frequência para aplicações IOT
(Universidade do Vale do Rio dos Sinos, 2021-07-29)
This work presents an overview of RF Energy Harvesting devices, pointing out the advantages and disadvantages of the main topologies used, as well as presenting the most relevant points for the design of Energy Harvesting ...
Effectiveness of flutter-based piezoelectric energy harvesters with the presence of freeplay and aerodynamic nonlinearities
(2022-01-01)
An investigation on the effects of the freeplay nonlinearity in the pitch degree of freedom on the behavior of a two-degree of freedom piezoaeroelastic energy harvesting system is investigated with simultaneously considering ...