Download or read book Piezoelectric Aeroelastic Energy Harvesting written by Hassan Elahi and published by Elsevier. This book was released on 2021-11-22 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric Aeroelastic Energy Harvesting explains the design and implementation of piezoelectric energy harvesting devices based on fluid-structure interaction. There is currently an increase in demand for low power electronic instruments in a range of settings, and recent advances have driven their energy consumption downwards. As a result, the possibility to extract energy from an operational environment is of growing significance to industry and academic research globally. This book solves problems related to the integration of smart structures with the aeroelastic system, addresses the importance of the aerodynamic model on accurate prediction of the performance of the energy harvester, describes the overall effect of the piezoelectric patch on the dynamics of the system, and explains different mechanisms for harvesting energy via fluid-structure interaction. This wealth of innovative technical information is supported by introductory chapters on piezoelectric materials, energy harvesting and circuits, and fluid structure interaction, opening this interdisciplinary topic up for readers with a range of backgrounds. Provides new designs of piezoelectric energy harvesters for fluid-structure interaction Explains how to correctly model aerodynamics for effective aeroelastic energy harvesting Numerical examples allow the reader to practice the design, modeling and implementation of piezoelectric energy harvesting devices

Download or read book Piezoelectric Energy Harvesting written by Alper Erturk and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.

Download or read book Nonlinear Aspects and Performance of Hybrid Aeroelastic Energy Harvesters written by Umer Javed and published by . This book was released on 2017 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent advent of micro-electro-mechanical systems has increased the demand for localized energy harvesting. The autonomous gadgets, structural health monitoring sensors, wireless sensors, and pacemakers are all paving their ways in our lives. These electronic devices demand innovative ways of powering them effectively and efficiently. Various ambient excitations can be used from the environment like base or aeroelastic. For converting this wasted mechanical energy, several transduction mechanisms are employed, like piezoelectric, electromagnetic, and electrostatic. This dissertation is a step forward in meeting the localized energy demand for operating low-power electronic devices by using a hybrid formation of piezoelectric material and electromagnet-coil arrangement for harnessing aeroelastic oscillations. Therefore in the first part of this dissertation, this hybrid configuration is utilized to discuss energy harvesting by a cantilever beam and prismatic-shaped cylinder subjected to wind flow from transverse direction, by using a special class of aeroelastic oscillations known as galloping. After establishing the importance of accurate modeling of aeroeolastic galloping force, we proceed on to discuss about hybrid energy harvesting. The inclined square section cylinders are investigated to harvest aeroelastic energy offered by galloping oscillations using accurate modeling proposed in the first part, again by using a hybrid configuration. The last part of harvesting energy by galloping oscillation using a hybrid transduction mechanism deals with using the same cantilever based hybrid galloping harvester, but this time by inclusion of a non-rigid support exhibiting non-zero slope. The impact of such support on piezoelectric and electromagnetic energy harvesting is investigated in detail. The second part of this dissertation deals with using the same hybrid configuration for harnessing aeroelastic energy by using another, rather well-known class, named vortex-induced vibrations. The different tools of nonlinear dynamics and vibrations, such as Galerkin discretization, Normal form of Hopf bifurcation, and shooting method are used to dissect the hybrid energy harvesters in length throughout the Dissertation. It is concluded at the end that hybrid energy harvesters come with their own added shunt damping effects because of an additional transducer to a single functioning transducer, whether an added piezoelectric layer or an electromagnet-inductive coil. At the same time, careful selection of the electrical load resistances of respective piezoelectric and electromagnetic circuitries would interplay with each other, can help bring the overall coupled damping of hybrid formation to acceptable reduced levels. This careful selection can help replace a sole classical electromagnetic or piezoelectric harvester with a hybrid one which can power multiple electronic lower power gadgets.

Download or read book Energy Harvesting from Ambient and Aeroelastic Vibrations written by Abdessattar A. Abdelkefi and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Converting vibrations to a usable form of energy has been the topic of many recent investigations. The ultimate goal is to convert ambient or aeroelastic vibrations to operate low-power consumption devices, such as microelectromechanical systems, heath monitoring sensors, wireless sensors or replacing small batteries that have a finite life span or would require hard and expensive maintenance. The transduction mechanisms used for transforming vibrations to electric power include: electromagnetic, electrostatic, and piezoelectric mechanisms. Because it can be used to harvest energy over a wide range of frequencies and because of its ease of application, the piezoelectric option has attracted significant interest. In this book, we investigate the performance of different types of piezoelectric energy harvesters. The objective is to design and enhance the performance of these harvesters. To this end, distributed-parameter and phenomenological models of these harvesters are developed. Global analysis of these models is then performed using modern methods of nonlinear dynamics.

Download or read book Wind Turbines and Aerodynamics Energy Harvesters written by Dan Zhao and published by Academic Press. This book was released on 2019-08-02 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind Turbines and Aerodynamics Energy Harvesters not only presents the most research-focused resource on aerodynamic energy harvesters, but also provides a detailed review on aeroacoustics characteristics. The book considers all developing aspects of 3D printed miniature and large-size Savonious wind harvesters, while also introducing and discussing bladeless and aeroelastic harvesters. Following with a review of Off-shore wind turbine aerodynamics modeling and measurements, the book continues the discussion by comparing the numerical codes for floating offshore wind turbines. Each chapter contains a detailed analysis and numerical and experimental case studies that consider recent research design, developments, and their application in practice. Written by an experienced, international team in this cross-disciplinary field, the book is an invaluable reference for wind power engineers, technicians and manufacturers, as well as researchers examining one of the most promising and efficient sources of renewable energy. - Offers numerical models and case studies by experienced authors in this field - Contains an overview and analysis of the latest research - Explores 3D printing technology and the production of wind harvesters for real applications - Includes, and uses, ANSYS FLUENT case files

Download or read book Aeroelastic Flutter Vibration Energy Harvesting written by Matthew James Bryant and published by . This book was released on 2012 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid proliferation of wireless sensors and microelectronics has spurred considerable interest in developing small scale devices that convert ambient energy sources to electrical power. Such "energy harvesting" devices could thus eliminate the need for hardwired power and extend the useful lifespan of a wireless sensor beyond the finite capacity of a battery. Piezoelectric materials, which directly convert mechanical strain to electrical energy, have been extensively investigated in recent years as a potential means to harvest energy from mechanical vibrations. This research has predominately focused on harvesting energy from preexisting vibrating host structures through base excitation of cantilevered piezoelectric beams. This approach, while simple to implement, inherently restricts the application of piezoelectric energy harvesting technology to environments where suitable vibrations are available. This dissertations proposes and investigates a novel piezoelectric energy harvesting device that simultaneously generates vibrations and harvests energy from an ambient fluid flow by inducing an aeroelastic flutter instability in a simple structure. The proposed device is studied through a combination of analytic modeling and wind tunnel experimentation. A model of this device that captures the three-way coupling between the structural, unsteady aerodynamic, and electrical aspects of the system is developed. The model is applied to predict the flow speed required for energy harvesting using linear stability analysis, and is generalized to account for aerodynamic nonlinearities that lead to flutter limit cycle behavior over a broad range of flow speeds. Wind tunnel test results are presented to determine empirical aerodynamic model coefficients and to characterize the power output and flutter frequency of the harvester as functions of incident wind speed. The model is then used to investigate the key design parameters of the system and determine the sensitivity and effective range of each parameter in affecting the characteristics of the aeroelastic instability driving the energy harvester. Finally, wind tunnel testing and flow visualization investigate the aerodynamic interactions between multiple flutter energy harvesters operating simultaneously. These experiments reveal synergistic wake-structure interactions than can be used to enhance the array performance, allowing the harvesters to produce more power when operating in close proximity than in a steady free stream flow.

Download or read book Piezoelectric Energy Harvesting written by Mohammad Adnan Ilyas and published by Momentum Press. This book was released on 2018-03-22 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental pollution has been one of the main challenges for sustainable development. Piezoelectric materials can be used as a means of transforming ambient vibrations into electrical energy to power devices. The focus is on an alternative approach to scavenge energy from the environment. This book presents harvesting methodologies to evaluate the potential effectiveness of different techniques and provides an overview of the methods and challenges of harvesting energy using piezoelectric materials. Piezoelectric energy harvesters have many applications, including sensor nodes, wireless communication, microelectromechanical systems, handheld devices, and mobile devices. The book also presents a new approach within piezoelectric energy harvesting using the impact of raindrops. The energy-harvesting model presented is further analyzed for single-unit harvester and an array of multiple harvesters to maximize the efficiency of the device.

Download or read book Machines Mechanism and Robotics written by Rajeev Kumar and published by Springer Nature. This book was released on 2021-07-21 with total page 1830 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes select papers presented during the 4th International and 19th National Conference on Machines and Mechanism (iNaCoMM 2019), held in Indian Institute of Technology, Mandi. It presents research on various aspects of design and analysis of machines and mechanisms by academic and industry researchers.

Download or read book Perspectives in Dynamical Systems I Mechatronics and Life Sciences written by Jan Awrejcewicz and published by Springer Nature. This book was released on 2022-01-04 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of collection of contributions devoted to analytical and experimental techniques of dynamical systems, presented at the 15th International Conference “Dynamical Systems: Theory and Applications”, held in Łódź, Poland on December 2-5, 2019. The wide selection of material has been divided into three volumes, each focusing on a different field of applications of dynamical systems. The broadly outlined focus of both the conference and these books includes bifurcations and chaos in dynamical systems, asymptotic methods in nonlinear dynamics, dynamics in life sciences and bioengineering, original numerical methods of vibration analysis, control in dynamical systems, optimization problems in applied sciences, stability of dynamical systems, experimental and industrial studies, vibrations of lumped and continuous systems, non-smooth systems, engineering systems and differential equations, mathematical approaches to dynamical systems, and mechatronics.

Download or read book Essentials Of Piezoelectric Energy Harvesting written by Kenji Uchino and published by World Scientific. This book was released on 2021-04-16 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric energy is a renewable alternative energy source that operates on a smaller scale than renewable energy generation plants which generate Mega-Giga Watts of power. Its potential to 'eliminate' contemporary batteries, which are classified as hazardous wastes, makes it an important technological advancement in a world increasingly concerned about eliminating waste, increasing sustainability and shifting to more 'green' consumption habits.Authored by a pioneer of piezoelectric actuators and piezoelectric energy harvesting, this unique compendium provides a solid theoretical background of piezoelectrics, practical material selection, device design optimization, and energy harvesting electric circuits. Included in each chapter are a list of chapter essentials, check points, example problems and solutions, and practice problems.Written for advanced undergraduate and graduate students, university researchers, and industry engineers studying or working in the field of piezoelectric energy harvesting systems, the useful reference text provides readers with the essential knowledge to conduct research and raises readers' awareness of known pitfalls and mis-directions in the field.

Download or read book Advances in Energy Harvesting Methods written by Niell Elvin and published by Springer Science & Business Media. This book was released on 2013-02-15 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Energy Harvesting Methods presents a state-of-the-art understanding of diverse aspects of energy harvesting with a focus on: broadband energy conversion, new concepts in electronic circuits, and novel materials. This book covers recent advances in energy harvesting using different transduction mechanisms; these include methods of performance enhancement using nonlinear effects, non-harmonic forms of excitation and non-resonant energy harvesting, fluidic energy harvesting, and advances in both low-power electronics as well as material science. The contributors include a brief literature review of prior research with each chapter for further reference.

Download or read book Experimental Testing of a Piezoaeroelastic Energy Harvester in a Wind Tunnel written by Gregory Fobben and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeroelastic energy harvesting in Heating, Ventilation, and Air Conditioning (HVAC) ducts has the potential to provide buildings with wireless security, air quality, temperature, and humidity monitoring. The energy generated could power a sensor, an on-board microprocessor, and Wi-Fi communications without the need for power and communication wiring. The sensor could work for years without the need for maintenance (e.g. battery changing). This work investigates the effect that certain variables have on the power and voltage output of a piezoelectric energy harvester that is placed in a wind tunnel. The harvester uses a unimorph cantilever that consists of a layer of piezoelectric material, PVDF, and a base material, Mylar. The cantilever is mounted on the face of a box that is perpendicular to the flow of the wind in the tunnel, and the air is allowed to pass through small gaps around the cantilever of varying widths, causing the cantilever to vibrate. The experiment demonstrates the effect that this gap width, the wind speed, and the applied load resistance has on the amount of power and voltage that the energy harvester can generate. Analysis of the collected data suggests that power and voltage increase with increasing gap width. Realistically, power would not continue to rise as gap size continued to grow, as there would be an optimal value for gap width. Optimization of gap width, however, is not within the scope of this thesis. There is also a clear trend of power and voltage increase as wind speed and electrical load resistance increase. The experiments test power and voltage outputs for 8 wind speeds, 3 load resistances, and 3 gap widths. Further experimentation should include additional load resistances and at least one gap width larger than 5 mm to verify the trends that are observed in this thesis.

Download or read book Jets Wakes and Cavities written by Zarantonello Eduardo H. and published by Elsevier. This book was released on 2012-12-02 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applied Mathematics and Mechanics, Volume 2: Jets, Wakes, and Cavities provides a systematic discussion of jets, wakes, and cavities. This book focuses on the general aspects of ideal fluid theory and examines the engineering applications of fluid dynamics. Organized into 15 chapters, this volume starts with an overview of the different types of jets and explores the atomization of jets in carburetors in connection with gasoline engine design. This text then emphasizes the formal treatment of special flows and examines the flows that are bounded by flat plates and free streamlines. Other chapters consider the flows that are bounded by the cavity behind a symmetric wedge. This book discusses as well the intuitive momentum and similarity considerations. The final chapter deals with several surprising physical complications. Mathematician, physicists, engineers, and readers interested in the fields of applied mathematics, experimental physics, hydraulics, and aeronautics will find this book extremely useful.

Download or read book Flexible Piezoelectric Energy Harvesters and Sensors written by Bin Yang and published by John Wiley & Sons. This book was released on 2022-10-04 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible Piezoelectric Energy Harvesters and Sensors A systematic and complete discussion of the latest progress in flexible piezoelectric energy harvesting and sensing technologies In Flexible Piezoelectric Energy Harvesters and Sensors, a team of distinguished researchers delivers a comprehensive exploration of the design methods, working mechanisms, microfabrication processes, and applications of flexible energy harvesters for wearable and implantable devices. The book discusses the monitoring of normal force, shear force, strain, and displacement in flexible sensors, as well as relevant artificial intelligence algorithms. Readers will also find an overview of design and research challenges facing professionals in the field, as well as a variety of perspectives on flexible energy harvesters and sensors. With an extensive focus on the use of flexible piezoelectric material technologies for medical applications, Flexible Piezoelectric Energy Harvesters and Sensors also includes: A thorough introduction to the working principles of piezoelectric devices, including discussions of flexible PEH and piezoelectric sensors Comprehensive treatments of the design of flexible piezoelectric energy harvesters, including the challenges associated with their structural design Fulsome explanations of the fabrication of flexible piezoelectric energy harvesters, including piezoelectric ceramic thin and think films In-depth treatments of cantilever piezoelectric energy harvesters, including optimized cantilever, bimorph, and optimized bimorph PEH Perfect for materials scientists, electronics engineers, and solid-state physicists, Flexible Piezoelectric Energy Harvesters and Sensors will also earn a place in the libraries of sensor developers, and surface physicists.

Download or read book Electromagnetic Membrane based Aeroelastic Energy Harvesting written by Martin Jose Samayoa Sanz-Agero and published by . This book was released on 2012 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of XXIV AIMETA Conference 2019 written by Antonio Carcaterra and published by Springer Nature. This book was released on 2020-03-31 with total page 2200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the peer-reviewed papers presented at the XXIV Conference of the Italian Association of Theoretical and Applied Mechanics, held in Rome, Italy, on September 15-19, 2019 (AIMETA 2019). The conference topics encompass all aspects of general, fluid, solid and structural mechanics, as well as mechanics for machines and mechanical systems, including theoretical, computational and experimental techniques and technological applications. As such the book represents an invaluable, up-to-the-minute tool, providing an essential overview of the most recent advances in the field.

Download or read book Flexible Piezoelectric Energy Harvesters and Sensors written by Bin Yang and published by John Wiley & Sons. This book was released on 2022-09-19 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flexible Piezoelectric Energy Harvesters and Sensors A systematic and complete discussion of the latest progress in flexible piezoelectric energy harvesting and sensing technologies In Flexible Piezoelectric Energy Harvesters and Sensors, a team of distinguished researchers delivers a comprehensive exploration of the design methods, working mechanisms, microfabrication processes, and applications of flexible energy harvesters for wearable and implantable devices. The book discusses the monitoring of normal force, shear force, strain, and displacement in flexible sensors, as well as relevant artificial intelligence algorithms. Readers will also find an overview of design and research challenges facing professionals in the field, as well as a variety of perspectives on flexible energy harvesters and sensors. With an extensive focus on the use of flexible piezoelectric material technologies for medical applications, Flexible Piezoelectric Energy Harvesters and Sensors also includes: A thorough introduction to the working principles of piezoelectric devices, including discussions of flexible PEH and piezoelectric sensors Comprehensive treatments of the design of flexible piezoelectric energy harvesters, including the challenges associated with their structural design Fulsome explanations of the fabrication of flexible piezoelectric energy harvesters, including piezoelectric ceramic thin and think films In-depth treatments of cantilever piezoelectric energy harvesters, including optimized cantilever, bimorph, and optimized bimorph PEH Perfect for materials scientists, electronics engineers, and solid-state physicists, Flexible Piezoelectric Energy Harvesters and Sensors will also earn a place in the libraries of sensor developers, and surface physicists.