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Author: Oriol Gomis-Bellmunt
Publisher: VDM Publishing
ISBN: 9783836470858
Category : Technology & Engineering
Languages : en
Pages : 102
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Book Description
Piezoelectric actuators are proving to be a reliable solution for many engineering applications, ranging from micro-positioning (machine tools, optic devices or modern microscopes) to active control of structures. The main motivation of this work is to delve into models to represent the hysteretic behavior of piezoelectric actuators in order to apply them to the conception of controllers for such hysteretic systems. A general study of piezoelectric actuators is performed to later deal with the modeling of such actuators. Due to the high non-linear behavior observed, the problem of identifying and modeling the actuator requires a hysteresis model. The Bouc-Wen model has been chosen and investigations to identify its parameters and to validate the model have been undertaken. Once the system has been identified, a linear controller has been designed and implemented in a real platform, employing a Digital Signal Processor.
Author: Oriol Gomis-Bellmunt
Publisher: VDM Publishing
ISBN: 9783836470858
Category : Technology & Engineering
Languages : en
Pages : 102
Get Book Here
Book Description
Piezoelectric actuators are proving to be a reliable solution for many engineering applications, ranging from micro-positioning (machine tools, optic devices or modern microscopes) to active control of structures. The main motivation of this work is to delve into models to represent the hysteretic behavior of piezoelectric actuators in order to apply them to the conception of controllers for such hysteretic systems. A general study of piezoelectric actuators is performed to later deal with the modeling of such actuators. Due to the high non-linear behavior observed, the problem of identifying and modeling the actuator requires a hysteresis model. The Bouc-Wen model has been chosen and investigations to identify its parameters and to validate the model have been undertaken. Once the system has been identified, a linear controller has been designed and implemented in a real platform, employing a Digital Signal Processor.
Author: Mohd. Nazmin Maslan
Publisher:
ISBN:
Category : Piezoelectric devices
Languages : en
Pages : 0
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Book Description
Author: Seung-Bok Choi
Publisher: CRC Press
ISBN: 9781439818091
Category : Technology & Engineering
Languages : en
Pages : 280
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Book Description
Currently, many smart materials exhibit one or multifunctional capabilities that are being effectively exploited in various engineering applications, but these are only a hint of what is possible. Newer classes of smart materials are beginning to display the capacity for self-repair, self-diagnosis, self-multiplication, and self-degradation. Ultimately, what will make them practical and commercially viable are control devices that provide sufficient speed and sensitivity. While there are other candidates, piezoelectric actuators and sensors are proving to be the best choice. Piezoelectric Actuators: Control Applications of Smart Materials details the authors’ cutting-edge research and development in this burgeoning area. It presents their insights into optimal control strategies, reflecting their latest collection of refereed international papers written for a number of prestigious journals. Piezoelectric materials are incorporated in devices used to control vibration in flexible structures. Applications include beams, plates, and shells; sensors and actuators for cabin noise control; and position controllers for structural systems such as the flexible manipulator, engine mount, ski, snowboard, robot gripper, ultrasonic motors, and various type of sensors including accelerometer, strain gage, and sound pressure gages. The contents and design of this book make it useful as a professional reference for scientists and practical engineers who would like to create new machines or devices featuring smart material actuators and sensors integrated with piezoelectric materials. With that goal in mind, this book: Describes the piezoelectric effect from a microscopic point of view Addresses vibration control for flexible structures and other methods that use active mount Covers control of flexible robotic manipulators Discusses application to fine-motion and hydraulic control systems Explores piezoelectric shunt technology This book is exceptionally valuable as a reference for professional engineers working at the forefront of numerous industries. With its balanced presentation of theory and application, it will also be of special interest to graduate students studying control methodology.
Author: Hu Huang
Publisher: BoD – Books on Demand
ISBN: 1839688319
Category : Science
Languages : en
Pages : 186
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Book Description
Taking advantage of high resolution, rapid response, and compact structure, piezoelectric actuators are widely employed for achieving precision positioning in both scientific research and industrial application. With the development of science and technology, the requirements for precision positioning are increasing. Accordingly, great efforts have been made to improve the performances of piezoelectric actuators, and significant progress has been achieved. This book discusses some recent achievements and developments of piezoelectric actuators, in terms of piezoelectric material, driving principle, structural design, modeling, and control, as well as applications.
Author: Frederic Giraud
Publisher: Butterworth-Heinemann
ISBN: 0128141867
Category : Technology & Engineering
Languages : en
Pages : 212
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Book Description
Piezoelectric Actuators: Vector Control Method: Base, Modelling and Mechatronic Design of Ultrasonic Devices guides researchers and engineers through the process of implementing the vector control method (VCM) in their systems. The book presents which measurements can be made, how to visualize a variable as a rotating vector, about the angular position of the rotating reference frame, how to calculate the parameters of the controllers, and how to observe key variables. Additionally, the book focuses on the modeling of PE ultrasonic transducers and investigates the energy conversion process in an ultrasonic transducer. Presents the fundamentals of the VCM at a basic level for researchers and practitioners who are new to the field Simulates several MATLAB and Simulink examples for deeper learning of the subject matter Presents the application to several test cases, with actual measurements obtained on experimental test benches Describes practical implementations of the method
Author: Tan Kok Kiong
Publisher: CRC Press
ISBN: 1351832166
Category : Science
Languages : en
Pages : 272
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Book Description
Modeling and Control of Precision Actuators explores new technologies that can ultimately be applied in a myriad of industries. It covers dynamical analysis of precise actuators and strategies of design for various control applications. The book addresses four main schemes: modeling and control of precise actuators; nonlinear control of precise actuators, including sliding mode control and neural network feedback control; fault detection and fault-tolerant control; and advanced air bearing control. It covers application issues in the modeling and control of precise actuators, providing several interesting case studies for more application-oriented readers. Introduces the driving forces behind precise actuators Describes nonlinear dynamics of precise actuators and their mathematical forms, including hysteresis, creep, friction, and force ripples Presents the control strategies for precise actuators based on Preisach model as well as creep dynamics Develops relay feedback techniques for identifying nonlinearities such as friction and force ripples Discusses a MPC approach based on piecewise affine models which emulate the frictional effects in the precise actuator Covers the concepts of air bearing stages with the corresponding control method Provides a set of schemes suitable for fault detection and accommodation control of mechanical systems Emphasizing design theory and control strategies, the book includes simulation and practical examples for each chapter; covers precise actuators such as piezo motors, coil motors, air bearing motors, and linear motors; discusses integration among different technologies; and includes three case studies in real projects. The book concludes by linking design methods and their applications, emphasizing the key issues involved and how to implement the precision motion control tasks in a practical system. It provides a concise and comprehensive source of the state-of-the-art developments and results for modeling and control of precise actuators.
Author: Andrzej Bartoszewicz
Publisher: BoD – Books on Demand
ISBN: 9533071621
Category : Science
Languages : en
Pages : 560
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Book Description
The main objective of this monograph is to present a broad range of well worked out, recent application studies as well as theoretical contributions in the field of sliding mode control system analysis and design. The contributions presented here include new theoretical developments as well as successful applications of variable structure controllers primarily in the field of power electronics, electric drives and motion steering systems. They enrich the current state of the art, and motivate and encourage new ideas and solutions in the sliding mode control area.
Author: Micky Rakotondrabe
Publisher: Springer
ISBN: 9783642240454
Category : Technology & Engineering
Languages : en
Pages : 310
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Book Description
This book reflects new developments in the modeling and control of piezoelectric cantilevers. The main nonlinearities (hysteresis and creep) of these actuators are explained from a physical point of view and introduced into the modeling through operators and systems. The achieved models are adapted and used for the synthesis of classical (PID...) and advanced control schemes and laws. Another important aim of the control part in this book is the feed forward control which is of great interest for linearization and for damping vibration or for performances improvement when no sensor is available for feedback. Finally, the last part addresses the measurement techniques and integration for piezoelectric actuators. The concept of self-sensing and the use of observer techniques are highlighted, emphasizing the close relation between the nonlinearities and the reliability of the provided measurement. This book supplies practical tools for modeling, control and signal measurement of piezoelectric cantilevers. Numercial examples, identification and implementation procedures for experiments are provided. Finally, the appendices provide the tools to get familiar with the employed control techniques.
Author: Emanuele Grasso
Publisher: Logos Verlag Berlin GmbH
ISBN: 383253623X
Category : Technology & Engineering
Languages : en
Pages : 198
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Book Description
Self sensing techniques allow using a piezoelectric transducer simultaneously as an actuator and as a sensor, as they reconstruct its mechanical sensory information by measuring its electrical quantities, i.e. voltage and charge. In vibration control applications piezoelectric self sensing actuators are highly desirable as they allow precise collocated control. Past research work was mainly based on the linear behavior of piezoelectric materials, thus restricting the operating driving voltages to low values. This work addresses the problem of using a self sensing piezoelectric actuator at its full driving voltage range. A new self sensing technique is proposed, which is based on the hysteretic modeling and identification of the piezoelectric transducer capacitance. After providing a sound presentation on piezoelectricity and vibrating structures, the most common self sensing techniques are discussed and the new self sensing technique is introduced and compared to typical linear methods both theoretically and experimentally.
Author: Hornsen (HS) Tzou
Publisher: Springer
ISBN: 9402412581
Category : Technology & Engineering
Languages : en
Pages : 469
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Book Description
This book offers an introduction to piezoelectric shells and distributed sensing, energy harvesting and control applications. It familiarizes readers with a generic approach of piezoelectric shells and fundamental electromechanics of distributed piezoelectric sensors, energy harvesters and actuators applied to shell structures. The book is divided into two major parts, the first of which focuses on piezoelectric shell continua, while the second examines distributing sensing, energy harvesting and control of elastic continua, e.g., shells and plates. The exploitation of new, advanced multifunctional smart structures and structronic systems has been one of the mainstream research and development activities over the years. In the search for innovative structronics technologies, piezoelectric materials have proved to be very versatile in both sensor and actuator applications. Consequently, the piezoelectric technology has been applied to a broad range of practical applications, from small-scale nano- and micro-sensors/actuators to large-scale airplane and space structures and systems. The book provides practicing engineers and researchers with an introduction to advanced piezoelectric shell theories and distributed sensor/energy harvester/actuator technologies in the context of structural identification, energy harvesting and precision control. The book can also be used as a textbook for graduate students. This second edition contains substantial new materials, especially energy harvesting and experimental components, and has been updated and corrected for a new generation of readers.
