Piezoelective Semi Active Networks For Structural Vibration Damping With Energy Redistribution

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Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution

Author : Dan Wu
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (138 download)

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Book Synopsis Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution by : Dan Wu

Download or read book Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution written by Dan Wu and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural vibration control is an important issue and has received considerable research attention in many industry applications. Researches investigated various approaches to reduce undesirable vibrations. The smart materials can control and suppress vibration in an efficient and “intelligent” way without causing much additional weight. The majority of research in smart damping materials has focused on the control of composite structure using embedded or bonded piezoelectric transducers. The advantages of piezoelectric materials include high achievable bandwidth, compactness, lightness, easy implementation and good electromechanical coupling characteristics, thus making them appropriate for actuators and sensors applications. Recently, a non-linear semi-passive vibration control technique, so-called Synchronized Switch Damping (SSD), has been developed. SSD technique relies on a cumulative build-up of the voltage resulting from the continuous switching of the piezoelectric voltage and it was shown that the performance is strongly related to this total voltage amplitude available. Based on SSD techniques, a new global approach for improved vibration damping of smart structure, based on global energy redistribution by means of a network of piezoelectric elements is proposed in this thesis. The objective of this work is to propose a new approach to increase the piezoelectric voltage (also related to the damping operative energy) in order to improve the damping performance. In the proposed semi-active approach, the extra energy used to improve this voltage is gathered on the various modes of the structure using an interconnected piezoelectric element network. Two original network topologies are developed for transferring energy. One is named SSDT for “Synchronized Switch Damping by energy Transfer”. The second is defined as SSDD for “Synchronized Switch Damping with Diode”. Performance evaluations and comparisons are performed on a model representative of a clamped plate equipped with piezoelectric elements in the case of multimodal motion. Compared to the Modal-SSDI method used as a baseline, simulation results and a global theoretical model are proposed demonstrating the relationship between the achievable damping improvement and the ratio of transferred energy to the structure mechanical energy, thus proving the capability of a network of piezoelectric elements for global energy management and redistribution in order to improve the vibration damping of smart structures.

Proceedings of the International Petroleum and Petrochemical Technology Conference 2019

Author : Jia'en Lin
Publisher : Springer Nature
ISBN 13 : 9811508607
Total Pages : 501 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Proceedings of the International Petroleum and Petrochemical Technology Conference 2019 by : Jia'en Lin

Download or read book Proceedings of the International Petroleum and Petrochemical Technology Conference 2019 written by Jia'en Lin and published by Springer Nature. This book was released on 2019-12-16 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of selected papers from the 3rd International Petroleum and Petrochemical Technology Conference (IPPTC 2019). The work focuses on petroleum & petrochemical technologies and practical challenges in the field. It creates a platform to bridge the knowledge gap between China and the world. The conference not only provides a platform to exchanges experience but also promotes the development of scientific research in petroleum & petrochemical technologies. The book will benefit a broad readership, including industry experts, researchers, educators, senior engineers and managers.

Piezoelectric Energy Harvesting

Author : Alper Erturk
Publisher : John Wiley & Sons
ISBN 13 : 1119991358
Total Pages : 377 pages
Book Rating : 4.1/5 (199 download)

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Book Synopsis Piezoelectric Energy Harvesting by : Alper Erturk

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.

Piezoelectric Transducers for Vibration Control and Damping

Author : S.O. Reza Moheimani
Publisher : Springer Science & Business Media
ISBN 13 : 1846283329
Total Pages : 282 pages
Book Rating : 4.8/5 (462 download)

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Book Synopsis Piezoelectric Transducers for Vibration Control and Damping by : S.O. Reza Moheimani

Download or read book Piezoelectric Transducers for Vibration Control and Damping written by S.O. Reza Moheimani and published by Springer Science & Business Media. This book was released on 2006-06-29 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent developments in vibration control systems that employ embedded piezoelectric sensors and actuators, reviewing ways in which active vibration control systems can be designed for piezoelectric laminated structures, paying distinct attention to how such control systems can be implemented in real time. Includes numerous examples and experimental results obtained from laboratory-scale apparatus, with details of how similar setups can be built.

Active Control in Mechanical Engineering

Author : Louis Jezequel
Publisher : CRC Press
ISBN 13 : 1000443744
Total Pages : 372 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Active Control in Mechanical Engineering by : Louis Jezequel

Download or read book Active Control in Mechanical Engineering written by Louis Jezequel and published by CRC Press. This book was released on 2021-06-30 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of active control in structural dynamics has led to a number of developments over wide-ranging industrial domains. This work investigates this area and examines a number of topics including: smart materials and structures; new strategies of active control and its applications.

Proceedings of the 2nd International Conference on Mechanical System Dynamics

Author : Xiaoting Rui
Publisher : Springer Nature
ISBN 13 : 9819980488
Total Pages : 4383 pages
Book Rating : 4.8/5 (199 download)

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Book Synopsis Proceedings of the 2nd International Conference on Mechanical System Dynamics by : Xiaoting Rui

Download or read book Proceedings of the 2nd International Conference on Mechanical System Dynamics written by Xiaoting Rui and published by Springer Nature. This book was released on with total page 4383 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structural Vibration Damping with Synchronized Energy Transfer Between Piezoelectric Patches

Author : Kaixiang Li
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)

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Book Synopsis Structural Vibration Damping with Synchronized Energy Transfer Between Piezoelectric Patches by : Kaixiang Li

Download or read book Structural Vibration Damping with Synchronized Energy Transfer Between Piezoelectric Patches written by Kaixiang Li and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced materials such as carbon fiber, composite materials et al. are more and more used in modern industry. They make the structures lighter and stiffer. However, they bring vibration problems. Researchers studied numerous methods to eliminate the undesirable vibrations. These treatments are expected to be a compact, light, intellectual and modular system. Recently, a nonlinear technique which is known as Synchronized Switch Damping (SSD) technique was proposed. These techniques synchronously switched when structure got to its displacement extremes that leading to a nonlinear voltage on the piezoelectric elements. This resulting voltage showed a time lag with the piezoelectric strain thus causing energy dissipation. Based on the developed SSD techniques, a new synchronized switch damping e.g. Synchronized Switch Damping with Energy Transfer (SSDET) was proposed in this document. This method damped the vibration by using the energy from other vibrating form. The objectives of the work reported in this document were threefold. The first one consisted of introduction of SSDET principle and developing its control law. This part aimed at establishing the mathematical model and verifying the proposed method by mathematical tools. Then, the experimental validations were carried out. Three experiments with different configurations demonstrated that SSDET can be implemented not only between structures but also vibrating modes in one structure. A SSDET scheme with multi-patches was also investigated for improving the damping. Finally, a bidirectional SSDET concept was introduced based on the original SSDET technique. This technique be regarded as a multimode control SSDET. Since it privileged the target vibration while keeps a decent control effect on the source vibration.

Multimodal Vibration Damping of Structures Coupled to Their Analogous Piezoelectric Networks

Author : Boris Lossouarn
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (982 download)

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Book Synopsis Multimodal Vibration Damping of Structures Coupled to Their Analogous Piezoelectric Networks by : Boris Lossouarn

Download or read book Multimodal Vibration Damping of Structures Coupled to Their Analogous Piezoelectric Networks written by Boris Lossouarn and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural vibrations can be reduced by benefiting from the electromechanical coupling that is offered by piezoelectric materials. In terms of passive damping, piezoelectric shunts allow converting the vibration energy into electrical energy. Adding an inductor in the circuit creates an electrical resonance due to the charge exchanges with the piezoelectric capacitance. By tuning the resonance of the shunt to the natural frequency of the mechanical structure, the equivalent of a tuned mass damper is implemented. This strategy is extended to the control of a multimodal structure by increasing the number of piezoelectric patches. These are interconnected through an electrical network offering modal properties that approximate the behavior of the structure to control. This multi-resonant network allows the simultaneous control of multiple mechanical modes. An adequate electrical topology is obtained by discretizing the mechanical structure and applying the direct electromechanical analogy. The analogous network shows inductors and transformers, whose numbers and values are chosen according to the frequency band of interest. After focusing on the design of suitable magnetic components, the passive control strategy is applied to the damping of one-dimensional structures as bars or beams. It is then extended to the control of thin plates by implementing a two-dimensional analogous network.

Vibration Control

Author : Mickaël Lallart
Publisher : BoD – Books on Demand
ISBN 13 : 9533071176
Total Pages : 394 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Vibration Control by : Mickaël Lallart

Download or read book Vibration Control written by Mickaël Lallart and published by BoD – Books on Demand. This book was released on 2010-08-18 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrations are a part of our environment and daily life. Many of them are useful and are needed for many purposes, one of the best example being the hearing system. Nevertheless, vibrations are often undesirable and have to be suppressed or reduced, as they may be harmful to structures by generating damages or compromise the comfort of users through noise generation of mechanical wave transmission to the body. the purpose of this book is to present basic and advanced methods for efficiently controlling the vibrations and limiting their effects. Open-access publishing is an extraordinary opportunity for a wide dissemination of high quality research. This book is not an exception to this, and I am proud to introduce the works performed by experts from all over the world.

Enhanced Self-powered Vibration Damping of Smart Structures by Modal Energy Transfer

Author : Zhen Wang
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (116 download)

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Book Synopsis Enhanced Self-powered Vibration Damping of Smart Structures by Modal Energy Transfer by : Zhen Wang

Download or read book Enhanced Self-powered Vibration Damping of Smart Structures by Modal Energy Transfer written by Zhen Wang and published by . This book was released on 2020 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a context of embedded structures, the next challenge is to develop an efficient, energetically autonomous vibration control technique. Synchronized Switch Damping techniques (SSD) have been demonstrated interesting properties in vibration control with a low power consumption. For compliant or soft smart structures, modal control is a promising way as specific modes can be targetted. This Ph-D work examines a novel energy transfer concept and design of simultaneous energy harvesting and vibration control on the same host structure. The basic idea is that the structure is able to extract modal energy from the chosen modes, and utilize this harvested energy to suppress the target modes via modal control method. We propose here a new technique to enhance the classic SSD circuit due to energy harvesting and energy transfer. Our architecture called Modal Synchronized Switching Damping and Harvesting (Modal SSDH) is composed of a harvesting circuit (Synchronized Switch Harvesting on Inductor SSHI), a Buck-Boost converter and a vibration modal control circuit (SSD). Various alternatives of our SSDH techniques were proposed and simulated. A real smart structure is modeled and used as specific case to test the efficiency of our concept. Piezoelectric sensors and actuators are taken as active transducers, as they develop the direct and inverse effects useful for the energy harvesting and the vibration damping. Optimization are running out and the basic design factors are discussed in terms of energy transfer. Simulations, carried out under bi-harmonic and noise excitation, underline that our new SSDH concept is efficient and robust. Our technique improve the damping effect of semi-active method compared to classic SSD method thanks to the use of harvested modal energy.

Acoustics Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.U/5 (183 download)

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Book Synopsis Acoustics Abstracts by :

Download or read book Acoustics Abstracts written by and published by . This book was released on 1996 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Model Validation and Uncertainty Quantification, Volume 3

Author : Robert Barthorpe
Publisher : Springer
ISBN 13 : 3319548581
Total Pages : 368 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Model Validation and Uncertainty Quantification, Volume 3 by : Robert Barthorpe

Download or read book Model Validation and Uncertainty Quantification, Volume 3 written by Robert Barthorpe and published by Springer. This book was released on 2017-06-07 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Model Validation and Uncertainty Quantification, Volume 3: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics, 2017, the third volume of ten from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Model Validation and Uncertainty Quantification, including papers on: Uncertainty Quantification in Material Models Uncertainty Propagation in Structural Dynamics Practical Applications of MVUQ Advances in Model Validation & Uncertainty Quantification: Model Updating Model Validation & Uncertainty Quantification: Industrial Applications Controlling Uncertainty Uncertainty in Early Stage Design Modeling of Musical Instruments Overview of Model Validation and Uncertainty

Smart Civil Structures

Author : You-Lin Xu
Publisher : CRC Press
ISBN 13 : 1315351919
Total Pages : 548 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Smart Civil Structures by : You-Lin Xu

Download or read book Smart Civil Structures written by You-Lin Xu and published by CRC Press. This book was released on 2017-04-11 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: A smart civil structure integrates smart materials, sensors, actuators, signal processors, communication networks, power sources, diagonal strategies, control strategies, repair strategies, and life-cycle management strategies. It should function optimally and safely in its environment and maintain structural integrity during strong winds, severe earthquakes, and other extreme events. This book extends from the fundamentals to the state-of-the-art. It covers the elements of smart civil structures, their integration, and their functions. The elements consist of smart materials, sensors, control devices, signal processors, and communication networks. Integration refers to multi-scale modelling and model updating, multi-type sensor placement, control theory, and collective placement of control devices and sensors. And the functions include structural health monitoring, structural vibration control, structural self-repairing, and structural energy harvesting, with emphasis on their synthesis to form truly smart civil structures. It suits civil engineering students, professionals, and researchers with its blend of principles and practice.

Vibration Control of Active Structures

Author : A. Preumont
Publisher : Springer Science & Business Media
ISBN 13 : 1402004966
Total Pages : 376 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Vibration Control of Active Structures by : A. Preumont

Download or read book Vibration Control of Active Structures written by A. Preumont and published by Springer Science & Business Media. This book was released on 2002-02-28 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: My objective in writing this book was to cross the bridge between the structural dynamics and control communities, while providing an overview of the potential of SMART materials for sensing and actuating purposes in active vibration c- trol. I wanted to keep it relatively simple and focused on systems which worked. This resulted in the following: (i) I restricted the text to fundamental concepts and left aside most advanced ones (i.e. robust control) whose usefulness had not yet clearly been established for the application at hand. (ii) I promoted the use of collocated actuator/sensor pairs whose potential, I thought, was strongly underestimated by the control community. (iii) I emphasized control laws with guaranteed stability for active damping (the wide-ranging applications of the IFF are particularly impressive). (iv) I tried to explain why an accurate pred- tion of the transmission zeros (usually called anti-resonances by the structural dynamicists) is so important in evaluating the performance of a control system. (v) I emphasized the fact that the open-loop zeros are more difficult to predict than the poles, and that they could be strongly influenced by the model trun- tion (high frequency dynamics) or by local effects (such as membrane strains in piezoelectric shells), especially for nearly collocated distributed actuator/sensor pairs; this effect alone explains many disappointments in active control systems.

International Aerospace Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1042 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Vibration Control

Author : Mickaël Lallart
Publisher : IntechOpen
ISBN 13 : 9789533071176
Total Pages : 392 pages
Book Rating : 4.0/5 (711 download)

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Book Synopsis Vibration Control by : Mickaël Lallart

Download or read book Vibration Control written by Mickaël Lallart and published by IntechOpen. This book was released on 2010-08-18 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrations are a part of our environment and daily life. Many of them are useful and are needed for many purposes, one of the best example being the hearing system. Nevertheless, vibrations are often undesirable and have to be suppressed or reduced, as they may be harmful to structures by generating damages or compromise the comfort of users through noise generation of mechanical wave transmission to the body. the purpose of this book is to present basic and advanced methods for efficiently controlling the vibrations and limiting their effects. Open-access publishing is an extraordinary opportunity for a wide dissemination of high quality research. This book is not an exception to this, and I am proud to introduce the works performed by experts from all over the world.

Programmable Elastic Metamaterials for Wave Control and Device Applications

Author : Hui Chen
Publisher : Frontiers Media SA
ISBN 13 : 2832537146
Total Pages : 108 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Programmable Elastic Metamaterials for Wave Control and Device Applications by : Hui Chen

Download or read book Programmable Elastic Metamaterials for Wave Control and Device Applications written by Hui Chen and published by Frontiers Media SA. This book was released on 2023-10-27 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging from electromagnetic waves and fast extending to acoustic and elastic waves, metamaterials that exhibit extraordinary wave control abilities have been gaining soaring attention. Over the past two decades, elastic metamaterials with engineered microstructures have provided a variety of appealing solutions for controlling elastic waves and vibrations. By tailoring their internal microstructures at a subwavelength scale, elastic metamaterials fruitfully distinct themselves from traditional materials or phononic crystals by their striking functions in wave trajectory manipulation, cloaking, nonreciprocal and topological wave control, as well as low-frequency wave/vibration mitigation and absorption.