Piezoelectric Multilayer Beam Bending Actuators: Static and Dynamic Behavior and Aspects of Sensor Integration

ISBN-13: 9783642069109 / Angielski / Miękka / 2010 / 358 str.

Rudiger G. Ballas

Opis

An important aim of the presented book is the explanation of the application of piezoelectric materials such as piezoceramics within the wide field of electromechanical actuators and sensor technology. The reader should be presented the physical and mechanical properties of piezoceramics in a distinct way. In a next step the reader is gradually introduced into the mechanical description of the static behavior of piezoelectric multilayer beam bending actuators being indispensable for industrial applications. Thereby, the reader gains insights, that are of great importance for the physical understanding and the design of piezoelectric bending actuators. In a next step the transition to the description of the dynamic behavior of piezoelectric multilayered bending actuators is carried out on the basis of Lagrange's formalism and Hamilton's principle providing the description within the field of structural dynamics for any kind of piezoelectric actuator. Subsequently, the attained insights are used for the systematic development of the electromechanical circuit representation within the context of the network theory for any kind of piezoelectric bending actuators. Particularly, this kind of representation is an indispensable tool for electrical engineers and engineers working in the field of mechatronics. The applications of piezoelectric multilayer beam bending actuators can be extended by means of special displacement sensors. The sensor integration enables the compensation of effects such as hysteresis, creeping and drift being typical for piezoelectric actuators. Thus, beam bending actuators can be applied for high-accuracy positioning. Within the scope of the presented work two different sensor-actuator systems are shown being based on an integrated capacitive and inductive displacement sensor respectively. Analytical simulations of the static and dynamic behavior are compared to real measurement results of a specially developed piezoelectric multilayer beam bender. Here, the suitability of the developed theoretical aspects is shown in an outstanding way. Furthermore, the inductive and the capacitive displacement sensor and the corresponding sensor electronics are discussed in detail. This kind of representation proves usefully for engineers working in the field of electronics and sensor development. The presented book reveals the multidisciplinarity of the topic. The successful approaches on the part of actuators exemplify the solution of similar problems in industries and research and provide the transition to integrated electromechanical systems.

Spis treści

Focus of the Book.- Theoretical Aspects and Closed Form Analysis.- Piezoelectric Materials.- Linear Theory of Piezoelectric Materials.- Theory of the Static Behavior of Piezoelectric Beam Bending Actuators.- Piezoelectric Beam Bending Actuators and Hamilton’s Principle.- Theory of the Dynamic Behavior of Piezoelectric Beam Bending Actuators.- Network Representation of Piezoelectric Multilayered Bending Actuators.- Measurement Setup and Validation of Theoretical Aspects.- Measurement Setup for Piezoelectric Beam Bending Actuators.- Measurements and Analytical Calculations.- Sensor Integration for Tip Deflection Measurements.- Piezoelectric Beam Bending Actuator with Integrated Sensor.- Tip Deflection Measurement — Capacitive Sensor Principle.- Tip Deflection Measurement — Inductive Sensor Principle.- Conclusion.

O autorze

Rüdiger G. Ballas was born in 1971 in Blieskastel, Germany. After finishing education as an assistant in physics at the Technical School for Natural Sciences Ludwigshafen, Germany, he received the diploma in microsystemtechnology in 1999 from the University of Applied Sciences Kaiserslautern, Germany. From 1999 until 2001 he worked with Tele Quarz in Neckarbischofsheim, Germany, where he was head of the group concerning microstructuring of AT-quartz crystals and development of high-frequency inverted MESA-quartzes. From 2001 until 2006 he worked as a Ph.D. student at Darmstadt University of Technology in the field of piezoelectric bending multilayer actuators with integrated sensors for tip deflection measurements. He received the Ph.D. degree in electrical engineering in 2006 from Darmstadt University of Technology. His actual research fields are theoretical mechanics, electromechanical system theory and modeling of the nonlinear behavior of piezoelectric actuators.

Blurb

An important aim of the presented book is the explanation of the application of piezoelectric materials such as piezoceramics within the wide field of electromechanical actuators and sensor technology. The reader should be presented the physical and mechanical properties of piezoceramics in a distinct way. In a next step, the reader is introduced into the mechanical description of the static behavior of piezoelectric multilayer beam bending actuators.

The description of the dynamic behavior of piezoelectric multilayered bending actuators is effected on the basis of Lagrange‘s formalism and Hamilton‘s principle. The achieved insights are used for the systematic development of the electromechanical circuit representation within the scope of the network theory for any design of piezoelectric bending actuators.

The applications of piezoelectric multilayer beam bending actuators can be extended by means of special displacement sensors allowing for the compensation of effects such as hysteresis, creep and drift being typical for piezoelectric actuators. Within the scope of the presented book, two different sensor-actuator-systems are presented being based on an integrated capacitive and inductive displacement sensor, respectively.

Analytical simulations of the static and dynamic behavior are compared to real measurement results of a specially developed piezoelectric multilayer beam bender. Here, the suitability of the developed theoretical aspects is shown in an outstanding way.