Piezoelectric Transducers for Vibration Control and Damping - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Piezoelectric Transducers for Vibration Control and Damping write by S.O. Reza Moheimani. This book was released on 2006-06-29. Piezoelectric Transducers for Vibration Control and Damping available in PDF, EPUB and Kindle. 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.
Vibration Control of Active Structures
Vibration Control of Active Structures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Vibration Control of Active Structures write by A. Preumont. This book was released on 2006-04-11. Vibration Control of Active Structures available in PDF, EPUB and Kindle. 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.
Self Sensing Techniques for Piezoelectric Vibration Applications
Self Sensing Techniques for Piezoelectric Vibration Applications - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Self Sensing Techniques for Piezoelectric Vibration Applications write by Emanuele Grasso. This book was released on 2014-02-27. Self Sensing Techniques for Piezoelectric Vibration Applications available in PDF, EPUB and Kindle. 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.
Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution
Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution write by Dan Wu. This book was released on 2014. Piezoelective Semi-active Networks for Structural Vibration Damping with Energy Redistribution available in PDF, EPUB and Kindle. 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.
Adaptive Structural Systems with Piezoelectric Transducer Circuitry
Adaptive Structural Systems with Piezoelectric Transducer Circuitry - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Adaptive Structural Systems with Piezoelectric Transducer Circuitry write by Kon-Well Wang. This book was released on 2009-04-03. Adaptive Structural Systems with Piezoelectric Transducer Circuitry available in PDF, EPUB and Kindle. Adaptive Structural Systems with Piezoelectric Transducer Circuitry provides a comprehensive discussion on the integration of piezoelectric transducers with electrical circuitry for the development and enhancement of adaptive structural systems. Covering a wide range of interdisciplinary research, this monograph presents a paradigm of taking full advantage of the two-way electro-mechanical coupling characteristics of piezoelectric transducers for structural control and identification in adaptive structural systems. Presenting descriptions of algorithm development, theoretical analysis and experimental investigation, engineers and researchers alike will find this a valuable reference.
