A Novel Electromechanical Model of a MEMS Energy Harvesting Device for a Multi-physics Simulation Platform on a Circuit Simulator

2014 ◽  
Author(s):  
T. Konishi ◽  
T. Matsushima ◽  
D. Yamane ◽  
K. Masu ◽  
H. Toshiyoshi ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Simulation Platform ◽  
Electromechanical Model ◽  
Circuit Simulator ◽  
Physics Simulation

Analytical Electromechanical Model of Cantilevered Bi-Stable Composites for Broadband Energy Harvesting

2013 ◽  
Author(s):  
Andres F. Arrieta ◽  
Tommaso Delpero ◽  
Paolo Ermanni
Keyword(s):  
Energy Harvesting ◽  
Large Amplitude ◽  
Wide Band ◽  
Electrical Energy ◽  
Ambient Vibration ◽  
Mode Shapes ◽  
Rapid Reduction ◽  
Electromechanical Model ◽  
Response Characteristics ◽  
Good Agreement

Vibration based energy harvesting has received extensive attention in the engineering community for the past decade thanks to its potential for autonomous powering small electronic devices. For this purpose, linear electromechanical devices converting mechanical to useful electrical energy have been extensively investigated. Such systems operate optimally when excited close to or at resonance, however, for these lightly damped structures small variations in the ambient vibration frequency results in a rapid reduction of performance. The idea to use nonlinearity to obtain large amplitude response in a wider frequency range, has shown the potential for achieving so called broadband energy harvesting. An interesting type of nonlinear structures exhibiting the desired broadband response characteristics are bi-stable composites. The bi-stable nature of these composites allows for designing several ranges of wide band large amplitude oscillations, from which high power can be harvested. In this paper, an analytical electromechanical model of cantilevered piezoelectric bi-stable composites for broadband harvesting is presented. The model allows to calculate the modal characteristics, such as natural frequencies and mode shapes, providing a tool for the design of bi-stable composites as harvesting devices. The generalised coupling coefficient is used to select the positioning of piezoelectric elements on the composites for maximising the conversion energy. The modal response of a test specimen is obtained and compared to theoretical results showing good agreement, thus validating the model.

scholarly journals An electromechanical model of ferroelectret for energy harvesting

2016 ◽  
Vol 25 (4) ◽  
pp. 045010 ◽  
Author(s):  
Zhenhua Luo ◽  
Dibin Zhu ◽  
Steve Beeby
Keyword(s):  
Energy Harvesting ◽  
Electromechanical Model

Hybrid Dynamic Modelling of Engine Emissions on Multi-Physics Simulation Platform

2021 ◽  
Vol 14 (2) ◽  
Author(s):  
Gaurav Pant ◽  
Felician Campean ◽  
Aleksandrs Korsunovs ◽  
Daniel Neagu ◽  
Oscar Garcia-Afonso
Keyword(s):  
Dynamic Modelling ◽  
Simulation Platform ◽  
Engine Emissions ◽  
Physics Simulation

Modeling and Simulation of Energy Harvesting Technologies in Low Power Nanogrids

2020 ◽  
Author(s):  
Jéssica P. Domingos ◽  
Rodrigo A. F. Ferreira ◽  
Márcio C. B. P. Rodrigues ◽  
Pedro G. Barbosa
Keyword(s):  
Energy Harvesting ◽  
Literature Review ◽  
Low Power ◽  
Modeling And Simulation ◽  
Equivalent Circuit ◽  
Case Studies ◽  
Modelling And Simulation ◽  
Energy Harvest ◽  
Simulation Platform ◽  
Energy Harvesters

This work presents an analysis on the integration of energy harvesting technologiesused for low power applications. The main goal e is to develop a simulation platform representing a nanogrid using the consolidated models of three of the most mature energy harvest sources: photovoltaic, thermoelectric and piezoelectric. The resulting model is used to evaluate the advantages of adding energy harvesters to a battery supplied applicaiton. It will be presented a short literature review, as well as a discussion about equivalent circuit models for each one of the sources used on the proposed 100 mW nanogrid. Aspects regarding modelling and simulation of the system on PSIM is presented and some case studies are performed to validate the proposed methodology.

Multiphysics circuit of a magnetostrictive energy harvesting device

2017 ◽  
Vol 28 (17) ◽  
pp. 2317-2330 ◽  
Author(s):  
Carmine S Clemente ◽  
Abdelmomen Mahgoub ◽  
Daniele Davino ◽  
Ciro Visone
Keyword(s):  
Energy Harvesting ◽  
Equivalent Circuit ◽  
Permanent Magnets ◽  
Nonlinear Functions ◽  
Circuit Simulator ◽  
The Subject ◽  
Full Coupling ◽  
Resistive Loads ◽  
Energy Harvesting Devices ◽  
Physical Quantities

Kinetic energy harvesting devices based on magnetostrictive materials are composed of several parts, for dealing with multiphysics, including mechanical, magnetic, and electric quantities. An effective method to simulate the effects of different working conditions is important to fully exploit such devices. The aim of this paper is to present an equivalent circuit that can be identified with standard measurements on the device and simulated with a standard circuit simulator, such as Spice. The circuit is a nonlinear three-port circuit, related to the mechanical, magnetic, and electrical parts of the device. Unlike many of the published papers on the subject, the magneto-mechanical modeling is quite realistic and exploits nonlinear functions and the full coupling among the involved physical quantities of the employed magnetostrictive material. The nonlinear equivalent circuit is preliminarily validated on a concept device with permanent magnets biasing on a Stress Annealed Galfenol rod. Experimental data with different resistive loads and magnetic biasing are considered and compared with simulation outputs, in terms of the RMS voltage and harvested power.

Validation of a multi-physics simulation platform for engine emissions modelling

2021 ◽  
pp. 146808742110643
Author(s):  
Aleksandrs Korsunovs ◽  
Oscar Garcia-Afonso ◽  
Felician Campean ◽  
Gaurav Pant ◽  
Efe Tunc
Keyword(s):  
Design Of Experiments ◽  
Model Simulation ◽  
Transient Simulation ◽  
Performance Criteria ◽  
Nox Emissions ◽  
Simulation Platform ◽  
Reactor Model ◽  
Drive Cycle ◽  
Physics Engine ◽  
Physics Simulation

This paper introduces a comprehensive and systematic Design of Experiments based methodology deployed in conjunction with a multi-physics engine air-path and combustion co-simulation, leading to the development of a global transient simulation capability for engine out NOx emissions. The proposed multi-physics engine simulation framework couples a real-time one-dimensional air flow model with a Probability Density Function based Stochastic Reactor Model that accounts for detailed in-cylinder combustion chemistry to predict combustion emissions. The integration challenge stemming from the different computation complexities and time scales required to ensure adequate fidelity levels across multi-physics simulations was addressed through a comprehensive Design of Experiments methodology to develop a reduction of the slower Stochastic Reactor Model simulation to enable a transient simulation focussed on NOx emissions. The Design of Experiments methodology, based on Optimal Latin Hypercube design experiments, was deployed on the multi-physics engine co-simulation platform and systematically validated against both steady state and transient light-duty Diesel engine test data. The surrogate selection process included the evaluation of a range of metamodels, with Kriging metamodels selected based on both the statistical performance criteria and consideration of physical phenomena trends. The transient validation was carried out on a simulated New European Drive Cycle against the experimental data available, showing good capability to capture transient NOx emission behaviour in terms of trends and values. The significance of the results is that it proves the transient and drive cycle capability of the multi-physics simulation platform, suggesting a promising potential applicability for early powertrain development work focussed on drive cycle emissions.

Progress on Developing a Multi-physics Simulation Platform: Rigorous Advanced Plasma Integration Testbed (RAPIT)

2018 ◽  
Author(s):  
Yun-Min Lee ◽  
Meng-Hua Hu ◽  
Cheng-Chin Su ◽  
Kuan-Lin Chen ◽  
Meng-Fan Tseng ◽  
...  
Keyword(s):  
Simulation Platform ◽  
Physics Simulation

scholarly journals Modeling and Characterization of a Kinetic Energy Harvesting Device Based on Galfenol

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3199 ◽  
Author(s):  
Carmine Stefano Clemente ◽  
Daniele Davino
Keyword(s):  
Energy Harvesting ◽  
Permanent Magnets ◽  
Electronic Devices ◽  
Power Electronic ◽  
Electrical Load ◽  
Circuit Simulator ◽  
Force Profile ◽  
Conversion Performance ◽  
Electrical Connections

The proposal of Energy Harvesting (EH) techniques and devices has experienced a significant growth over the last years, because of the spread of low power electronic devices. Small ambient energy quantities can be recovered through EH and exploited to power Wireless Sensor Networks (WSN) used, for example, for the Structural Health Monitoring (SHM) of bridges or viaducts. For this purpose, research on EH devices based on magnetostrictive materials has significantly grown in the last years. However, these devices comprise different parts, such as a mechanical system, magnetic circuit and electrical connections, which are coupled together. Then, a method able to reproduce the performance may be a handy tool. This paper presents a nonlinear equivalent circuit of a harvester, based on multiple rods of Galfenol, which can be solved with standard circuit simulator. The circuital parameters are identified with measurements both on one rod and on the whole device. The validation of the circuit and the analysis of the power conversion performance of the device have been conducted with different working conditions (force profile, typology of permanent magnets, resistive electrical load).

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