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Synergistic integration of smart materials, structures, sensors,
actuators and control electronics has redefined the concept
of"structures" from a conventional passive elastic system to an
active controllable structronic (structure +electronic) system with
inherent self-sensing, diagnosis, and control capabilities. Such
structronic systems can be used as components of high performance
systems or can be an integrated structure itself performing
designated functions and tasks. Due to the multidisciplinary nature
of structronic systems their development has attracted researchers
and scientists from theoretical and applied mechanics and many
other disciplines, such as structures, materials, control,
electronics, computers, mathematics, manufacturing,
electromechanics, etc. , see Figure I. This field was first
introduced about mid-80 and it is quickly becoming a new emerging
field recognized as one ofthe key technologies of 51 the 21
century. This new field focuses on not only multi-field and
multi-discipline integrations, but has also enormous practical
applications impacting many industries and enriching human living
qualities. Structures (Systemill, Monitoring...) (Non-homogeneous
& Incompatible Structures) Electromechanics I StrucTranics I
(SmartStructures) ___. I Mechanics (Solid, (Intelligent Structural
Systems) Fracture,Fatigue...) DynamicslKinematics & Vibration
Figure I Multi-disciplinary integration ofstructronic systems. To
reflect the rapid development in smart structures and structronic
systems, the objective of the IUTAM 2000 Symposium on Smart
Structures and Structronic Systems, the first IUTAM symposium in
this new emerging area, is to provide a forum to discuss recent
research advances and future directions or trends in this field.
Research into and development of high-precision systems,
microelectromechanical systems, distributed sensors/actuators,
smart structural systems, high-precision controls, etc. have drawn
much attention in recent years. These new devices and systems will
bring about a new technical revolution in modern industries and
impact future human life. This book presents a unique overview of
these technologies such as silicon based sensors/actuators and
control piezoelectric micro sensors/actuators, micro actuation and
control, micro sensor applications in robot control, optical fiber
sensors/systems, etc. These are four essential subjects emphasized
in the book: 1. Survey of the (current) research and development;
2. Fundamental theories and tools; 3. Practical applications. 4.
Outlining future research and development.
Exploiting new advanced structures and electromechanical systems,
e. g. , adaptive structures, high-precision systems, micro
electromechanical systems, distributed sensors/actuators, precision
manipulation and controls, etc. , has been becoming one of the
mainstream research and development activities (structure &
motion) in recent years. These new systems and devices could bring
a new technological revolution in modern industries and further,
directly or indirectly, impact human life. In the search for and
research in innovative technologies, it is proved that
piezoelectric materials are very versatile in both sensor and
actuator applications. Consequently, piezoelectric technology has
been widely applied to a large number of industrial applications
and devices, varying from thin-film micro sensors/actuators to
large space structures in addition to those relatively conventional
applications, e. g. , sensors, actuators, hydrophones, precision
manipulators, mobile robots, micro motors, etc. There have been a
few books on piezoelectricity published in the past; however, a
unified presentation of piezoelectric shells and distributed
senSing/control applications is still lacking. This book is
intended to fill the gap and to pro~de practising engineers and
researchers with an introduction to advanced piezoelectric shell
theories and distributed sensor/actuator technologies in structural
identification and control. This book represents a collection of
the author's recent research and development on piezoelectric
shells and related applications to distributed measurement and
control of continuaj it reflects six best-paper awards, including [
xviii] * Contents. two ASME Best-Paper Awards in recent years.
In recent years, "intelligent (sm. o. rt) structures antlllJ/stems"
has become an emerging new research area that is multi-disciplinary
in nature, requiring technical expertise from mechanical
engineering, structural engineering, electrical engineering,
applied mechanics, engineering mathematics, material science,
computer science, biological science, etc. This technology is quite
likely to contribute significant advancements in the design of
high-performance structures, adaptive structures, high-precision
systems, micro-systems, etc. Although this emerging area has been
rapidly gathering momentum in the last few years, researchers are
aware that to some extent only initial, but highly feasible studies
of the concepts proposed have been conducted. It is obvious that
many important, pertinent fundamental research subjects must yet be
investigated and resolved in the near future. We have the privilege
to invite a number of highly regarded research scientists and
engineers to summarize and contribute the results of their years of
research experience with the evolution of intelligent (smart)
structures and systems to the collection of chapters contained in
this book. Their research topics include current intelligent
(smart) structures research activities, piezoelectric structures,
shape memory alloy reinforced composites, applications of
electrorheological fluids, intelligent sensor systems, adaptive
precision trusses, damage detection, model refinement, control of
axial moving continua, distributed transducers, etc. These subjects
represent only a small portion of the complete picture; indeed, the
fundamentally important development of smart or intelligent
materials is not addressed in detail here.
Synergistic integration of smart materials, structures, sensors,
actuators and control electronics has redefined the concept
of"structures" from a conventional passive elastic system to an
active controllable structronic (structure +electronic) system with
inherent self-sensing, diagnosis, and control capabilities. Such
structronic systems can be used as components of high performance
systems or can be an integrated structure itself performing
designated functions and tasks. Due to the multidisciplinary nature
of structronic systems their development has attracted researchers
and scientists from theoretical and applied mechanics and many
other disciplines, such as structures, materials, control,
electronics, computers, mathematics, manufacturing,
electromechanics, etc., see Figure I. This field was first
introduced about mid-80 and it is quickly becoming a new emerging
field recognized as one ofthe key technologies of 51 the 21
century. This new field focuses on not only multi-field and
multi-discipline integrations, but has also enormous practical
applications impacting many industries and enriching human living
qualities. Structures (Systemill, Monitoring. . . )
(Non-homogeneous & Incompatible Structures) Electromechanics I
StrucTranics I (SmartStructures) ___. I Mechanics (Solid,
(Intelligent Structural Systems) Fracture, Fatigue. . . )
DynamicslKinematics & Vibration Figure I Multi-disciplinary
integration ofstructronic systems. To reflect the rapid development
in smart structures and structronic systems, the objective of the
IUTAM 2000 Symposium on Smart Structures and Structronic Systems,
the first IUTAM symposium in this new emerging area, is to provide
a forum to discuss recent research advances and future directions
or trends in this field.
Research into and development of high-precision systems,
microelectromechanical systems, distributed sensors/actuators,
smart structural systems, high-precision controls, etc. have drawn
much attention in recent years. These new devices and systems will
bring about a new technical revolution in modern industries and
impact future human life. This book presents a unique overview of
these technologies such as silicon based sensors/actuators and
control piezoelectric micro sensors/actuators, micro actuation and
control, micro sensor applications in robot control, optical fiber
sensors/systems, etc. These are four essential subjects emphasized
in the book: 1. Survey of the (current) research and development;
2. Fundamental theories and tools; 3. Practical applications. 4.
Outlining future research and development.
In recent years, "intelligent (sm. o. rt) structures antlllJ/stems"
has become an emerging new research area that is multi-disciplinary
in nature, requiring technical expertise from mechanical
engineering, structural engineering, electrical engineering,
applied mechanics, engineering mathematics, material science,
computer science, biological science, etc. This technology is quite
likely to contribute significant advancements in the design of
high-performance structures, adaptive structures, high-precision
systems, micro-systems, etc. Although this emerging area has been
rapidly gathering momentum in the last few years, researchers are
aware that to some extent only initial, but highly feasible studies
of the concepts proposed have been conducted. It is obvious that
many important, pertinent fundamental research subjects must yet be
investigated and resolved in the near future. We have the privilege
to invite a number of highly regarded research scientists and
engineers to summarize and contribute the results of their years of
research experience with the evolution of intelligent (smart)
structures and systems to the collection of chapters contained in
this book. Their research topics include current intelligent
(smart) structures research activities, piezoelectric structures,
shape memory alloy reinforced composites, applications of
electrorheological fluids, intelligent sensor systems, adaptive
precision trusses, damage detection, model refinement, control of
axial moving continua, distributed transducers, etc. These subjects
represent only a small portion of the complete picture; indeed, the
fundamentally important development of smart or intelligent
materials is not addressed in detail here.
Distributed parameter systems encompass a broad range of
engineering applications from stereo speakers to space structures.
The dynamic behavior of these systems is usually governed by one or
more partial differential equations, which may accurately represent
the physical system but are often difficult to solve exactly.
Research in the dynamics and control of distributed parameter
structural systems has grown dramatically in recent years, owing in
part to the increasing complexity of these systems. Emerging
technologies such as smart materials and mechatronics have
contributed to growth in interest. The purpose of this book is to
document recent progress in both theory and practical applications.
Chapters discuss new simulation, modeling, and analysis techniques
used to investigate a variety of elastic, electromechanical, and
acoustic systems. With contributions by leading authorities, this
book will serve as an up-to-date resource for researchers and
graduate students and also as a useful reference for practicing
engineers working in the area of dynamics and control of
distributed systems.
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