Surgically Implanted Energy Harvesting Devices for Renewable Power Sources in Insect Cyborgs

2008 ◽  
Author(s):  
Timothy Reissman ◽  
Ephrahim Garcia
Keyword(s):  
Energy Harvesting ◽  
Kinetic Energy ◽  
Manduca Sexta ◽  
Energy Harvester ◽  
Power Sources ◽  
Renewable Power ◽  
Implantation Process ◽  
Battery Technology ◽  
Energy Harvesting Devices ◽  
Application Specific

This work details the implantation process of an energy harvester platform within a Manduca sexta Hawkmoth for the purpose of creating a cyborg insect. Also included is an evaluation of energy harvesting with respect to present lightweight battery technology and the magnitudes of ambient energy available for the cyborg insect application. Specific emphasis is given to kinetic energy harvester development, with theory and fabrication of the devices detailed.

Multi-Stable Magnetic Spring-Based Energy Harvester Subject to Harmonic Excitation: Comparative Study and Experimental Evaluation

2018 ◽  
Author(s):  
Hieu Nguyen ◽  
Hamzeh Bardaweel
Keyword(s):  
Energy Harvesting ◽  
Kinetic Energy ◽  
Comparative Study ◽  
Experimental Evaluation ◽  
Chaotic Motion ◽  
Energy Harvester ◽  
Electric Energy ◽  
Harmonic Excitation ◽  
Jump Frequency ◽  
Piezoelectric Elements

The work presented here investigates a unique design platform for multi-stable energy harvesting using only interaction between magnets. A solid cylindrical magnet is levitated between two stationary magnets. Peripheral magnets are positioned around the casing of the energy harvester to create multiple stable positions. Upon external vibration, kinetic energy is converted into electric energy that is extracted using a coil wrapped around the casing of the harvester. A prototype of the multi-stable energy harvester is fabricated. Monostable and bistable configurations are demonstrated and fully characterized in static and dynamic modes. Compared to traditional multi-stable designs the harvester introduced in this work is compact, occupies less volume, and does not require complex circuitry normally needed for multi-stable harvesters involving piezoelectric elements. At 2.5g [m/s2], results from experiment show that the bistable harvester does not outperform the monostable harvester. At this level of acceleration, the bistable harvester exhibits intrawell motion away from jump frequency. Chaotic motion is observed in the bistable harvester when excited close to jump frequency. Interwell motion that yields high displacement amplitudes and velocities is absent at this acceleration.

Optimizing the Electrical Power in an Energy Harvesting System

2015 ◽  
Vol 25 (12) ◽  
pp. 1550171 ◽  
Author(s):  
Mattia Coccolo ◽  
Grzegorz Litak ◽  
Jesús M. Seoane ◽  
Miguel A. F. Sanjuán
Keyword(s):  
Energy Harvesting ◽  
Kinetic Energy ◽  
High Frequency ◽  
Energy Harvester ◽  
Electrical Power ◽  
Low Frequency ◽  
Electrical Energy ◽  
Resonance Phenomenon ◽  
Vibrational Resonance ◽  
Energy Harvesting System

In this paper, we study the vibrational resonance (VR) phenomenon as a useful mechanism for energy harvesting purposes. A system, driven by a low frequency and a high frequency forcing, can give birth to the vibrational resonance phenomenon, when the two forcing amplitudes resonate and a maximum in amplitude is reached. We apply this idea to a bistable oscillator that can convert environmental kinetic energy into electrical energy, that is, an energy harvester. Normally, the VR phenomenon is studied in terms of the forcing amplitudes or of the frequencies, that are not always easy to adjust and change. Here, we study the VR generated by tuning another parameter that is possible to manipulate when the forcing values depend on the environmental conditions. We have investigated the dependence of the maximum response due to the VR for small and large variations in the forcing amplitudes and frequencies. Besides, we have plotted color coded figures in the space of the two forcing amplitudes, in which it is possible to appreciate different patterns in the electrical power generated by the system. These patterns provide useful information on the forcing amplitudes in order to produce the optimal electrical power.

Investigations of a Stiffness Tunable Nonlinear Vibrational Energy Harvester

2014 ◽  
Vol 14 (08) ◽  
pp. 1440023 ◽  
Author(s):  
Dongxu Su ◽  
Kimihiko Nakano ◽  
Rencheng Zheng ◽  
Matthew P. Cartmell
Keyword(s):  
Energy Harvesting ◽  
Permanent Magnets ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Duffing Oscillator ◽  
Experimental Tests ◽  
High Energy ◽  
Practical Implementation ◽  
Energy Harvesting Devices ◽  
Energy Orbit

The recent potential benefit of nonlinearity has been applying in order to improve the effectiveness of energy harvesting devices. For instance, at relatively high excitation levels, both low and high-energy responses can coexist for the same parameter combinations in a hardening type Duffing oscillator, and this provides a wider bandwidth and a higher energy harvesting effectiveness under periodic excitations. However, frequency or amplitude sweeps of the excitation must be used in order to reach a desirable high-energy orbit, and this gives a limitation on practical implementation. This paper presents a stiffness tunable nonlinear vibrational energy harvester which contains a moving magnetic end mass attached to a cantilever beam, whose nonlinearity emerges from the interaction forces with two neighboring permanent magnets facing with opposing poles. The motivating hypothesis has been that the jump from the low-energy orbit to the high-energy orbit can be triggered by tuning the stiffness of the system without changing the frequency or the amplitude of the excitation. Theoretical investigations show a methodology for tuning stiffness, and experimental tests have validated that the proposed method can be used to trigger a jump to the desirable state, and hereby this can broaden the bandwidth of the energy harvester.

A Low-order Model for the Design of Piezoelectric Energy Harvesting Devices

2008 ◽  
Vol 20 (5) ◽  
pp. 495-504 ◽  
Author(s):  
Jeffrey L. Kauffman ◽  
George A. Lesieutre
Keyword(s):  
Energy Harvesting ◽  
Design Tool ◽  
Mode Shapes ◽  
Piezoelectric Energy Harvesting ◽  
Coupling Coefficients ◽  
Order Model ◽  
Power Sources ◽  
Piezoelectric Energy ◽  
Energy Harvesting Devices ◽  
Low Order

Piezoelectric energy harvesting devices are an attractive approach to providing remote wireless power sources. They operate by converting available vibration energy and storing it as electrical energy. Currently, most devices rely on mechanical excitation near their resonance frequency, so a low-order model which computes a few indicators of device performance is a critical design tool. Such a model, based on the assumed modes method, develops equations of motion to provide rapid computations of key device parameters, such as the natural frequencies, mode shapes, and electro-mechanical coupling coefficients. The model is validated with a comparison of its predictions and experimental data.

scholarly journals Vibration energy harvesting: A review

2019 ◽  
Vol 09 (04) ◽  
pp. 1930001 ◽  
Author(s):  
Anwesa Mohanty ◽  
Suraj Parida ◽  
Rabindra Kumar Behera ◽  
Tarapada Roy
Keyword(s):  
Energy Harvesting ◽  
Small Scale ◽  
Recent Past ◽  
Vibration Energy Harvesting ◽  
Power Sources ◽  
Energy Harvesters ◽  
Portable Power ◽  
Different Types ◽  
Energy Harvesting System ◽  
Energy Harvesting Devices

This study is based on energy harvesting from vibration and deals with the comparison of different techniques. In the present scenario, energy harvesting has drawn the attention of researchers due to a rapid increase in the use of wireless and small-scale devices. So, there is a huge thirst among scientists to develop permanent portable power sources. In the surroundings, a lot of unutilized energy is wasted which can be collected and used for power generation. Research works have been extensively carried out to develop energy harvesting devices catering to the increasing needs of being efficient and economical. Effective energy harvesting mainly depends on the design of the transducer. Different types of design techniques, material properties, and availability of energy harvesters are reviewed in this paper. The paper aims to explore the advantages and limitations of different energy harvesting principles, advances, and findings of the recent past. This study also discusses some of the key ideas for the enhancement of power output. This paper provides a broad view of the energy harvesting system to the learners, which will facilitate them to design more efficient energy harvesting devices by using different principles.

scholarly journals A Study on the Analytic Power Estimation of the Electromagnetic Resonant Energy Harvester for the High-Speed Train

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 403 ◽  
Author(s):  
Jaehoon Kim
Keyword(s):  
Energy Harvesting ◽  
High Speed ◽  
Energy Harvester ◽  
Vertical Direction ◽  
Design Parameters ◽  
Maximum Speed ◽  
Power Sources ◽  
Resonant Energy ◽  
High Speed Trains ◽  
Analytic Estimation

This study is intended to identify the applicability of energy harvesting technologies that are regarded as new electrical power sources for the sensors on high-speed trains. The analytic estimation research is conducted on the amount of electric energy harvested from the high-speed trains, operating at a maximum speed of over 400km/h to verify the applicability of the energy harvesting technology converting the vibration energy of axle and bogie into electric power. Based on the data of the vibration acceleration on the axles and bogies, which were measured by using a 500 Hz analog filter, an analytic estimation on the amount of power harvested by an electromagnetic resonant harvester is conducted through the analysis of the main frequency. The power of the electromagnetic resonant harvester is based on a theoretical model of the mass-spring-damper system, and the harvested power from the axles and bogies in the vertical direction is analytically estimated in this study. The analytic calculations typically give the target value for the final performance of the electromagnetic resonant energy harvester. The targets of the analytic estimations are given to provide the basis for the detailed design and to give a basis for defining the basic design parameters of the electromagnetic resonant energy harvester.

Design and Implementation of Hybrid Micro Energy Harvester for Autonomous WSN Components

2013 ◽  
Vol 313-314 ◽  
pp. 1362-1366
Author(s):  
Mukter Zaman ◽  
Airul Azha Abd. Rahman ◽  
Aiman Aziz ◽  
Jauhari Abdul Ghafar ◽  
Shabiul Islamn
Keyword(s):  
Energy Harvesting ◽  
Energy Harvester ◽  
Power Requirement ◽  
Power Sources ◽  
Hybrid Energy ◽  
Design And Implementation ◽  
Hybrid Energy Harvester ◽  
Limited Life ◽  
Sufficient Energy ◽  
Functional Prototype

Successful deployment of Wireless Sensor Network (WSN) depends on the availability of power sources. Conventional battery-based WSN components has several drawbacks, such as limited life-span, bulky size and hazardous to the environment. Hence, energy harvesting from ambient sources attracts enormous attention. But energy harvesting depends on the availability of the ambient sources. In most cases energy harvesting from a single source is not enough to produce sufficient energy to power up WSN components. This paper describe about the design, and implementation consideration of a hybrid energy harvester for an autonomous sensing system. The sensing components of WSN are connected with the hybrid energy harvester on the same structure to generate required energy from the ambient environment such as solar and chemical reaction. As a case study, the power requirements of in-house developed WSN components [1] are measured. Based on the power requirement a hybrid energy harvester based autonomous system is designed [2], and a functional prototype of the system is implemented. In the implemented prototype, energy is being harvested from the ambient solar and chemical sources. From the evaluation of the developed system, it is found that powering WSN components, hybrid energy harvester produces an additional amount of 10491.93 J (equivalent to 2.91 Wh) of energy, which is capable to fill-up a 971 mA-hr storage in one day operation. This is enough for the WSN components to draw power subsequently, when there is not enough ambient sources available for next few days.

Optimum power of a nonlinear piezomagnetoelastic energy harvester with using multidisciplinary optimization algorithms

2020 ◽  
pp. 1045389X2097443
Author(s):  
Mohammad Tahmasbi ◽  
Asghar Jamshiddoust ◽  
Amin Farrokhabadi
Keyword(s):  
Genetic Algorithm ◽  
Simulated Annealing ◽  
Energy Harvesting ◽  
Energy Harvester ◽  
Random Search ◽  
Electrical Power ◽  
Multidisciplinary Optimization ◽  
Physical Parameters ◽  
Parallel Configuration ◽  
Energy Harvesting Devices

Energy-harvesting devices have been widely used to generate electrical power. Through the use of energy harvesting techniques, ambient vibration energy can be captured and converted into usable electricity in order to create self-powering systems. In the present study, to further improve the efficiency of energy-harvesting devices, a nonlinear piezomagnetoelastic energy harvester is proposed in two different configurations that is parallel and series. In order to optimize the generated electrical power, the physical parameters of the harvester are chosen as the design variables. Classical and Metaheuristic algorithms, namely, random search, genetic algorithm, and simulated annealing are applied to optimize the output power regarding the stress and displacement constraints and feasible variable bounds. Finally, the results of the applied algorithms are compared together. The results demonstrate that most of the implemented algorithms converge to the similar objective function value. The constrained random search methods with SQP and active set algorithms converge faster with small iterations. However, the genetic algorithm and simulated annealing algorithm are more capable to find the global optimum. The obtained results revealed that, before the optimization, the average extracted power in specified time was 3.121 W in parallel configuration and 3.156 W in serial configuration. By using the optimization approaches, the power converged to 4.273 W in parallel configuration and 4.296 W in serial configuration that means the power is increased by 36.9% and 36.1% approximately.

Novel printing techniques to print flexible radio frequency devices such as antennas

Impact ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 6-8
Author(s):  
Simon George King ◽  
Bilal Tariq Malik ◽  
Pavlos Giannak ◽  
Maxim Shkunov
Keyword(s):  
Energy Harvesting ◽  
Radio Frequency ◽  
Electronic Devices ◽  
Solar Panels ◽  
Power Sources ◽  
Wind Generators ◽  
Smart Surfaces ◽  
Energy Harvesting Devices ◽  
Printing Techniques ◽  
Flexible Radio

Energy harvesting devices such as solar panels and wind generators collect energy sources and convert them to generate power. Such devices are economical and efficient and also allow energy to be generated and devices and applications powered in places without conventional power sources, such as underwater. Energy harvesting also has the potential to be used to satisfy the need for energy autonomy that autonomous electronics, the Internet of Things (IoT) and wearable devices demand. At the University of Surrey, UK, Dr Simon King is collaborating with Dr Bilal Malik, Dr Maxim Shkunov and Dr Pavlos Giannakou on a project called flexible smart SURFaces for Augmented indoor communicationS (SURFAS) to design energy harvesting surfaces (antennas) for zero-power consuming electronic devices. Each team member has their own speciality and all share the common goal of revolutioning the ways that devices access and consume energy. The goal is to reduce energy consumption and provide cost benefits. Part of the team's current work involves the use of novel printing techniques to fabricate flexible radio frequency (RF) devices, such as rectifying antennas. The team believes the development of fully integrated printed energy harvesting devices will lead to countless future IoT applications. The ultimate objective of SURFAS is to enable zero-power consumption electronic devices and smart surfaces that are capable of optimally redirecting Wi-Fi signals and enhancing the performance of receivers. The team is also working to develop a manufacturing process for rapidly and cost-effectively producing such devices.

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