|
|
Books > Professional & Technical > Mechanical engineering & materials > Mechanical engineering > General
Spacecraft Dynamics and Control: The Embedded Model Control
Approach provides a uniform and systematic way of approaching space
engineering control problems from the standpoint of model-based
control, using state-space equations as the key paradigm for
simulation, design and implementation. The book introduces the
Embedded Model Control methodology for the design and
implementation of attitude and orbit control systems. The logic
architecture is organized around the embedded model of the
spacecraft and its surrounding environment. The model is compelled
to include disturbance dynamics as a repository of the uncertainty
that the control law must reject to meet attitude and orbit
requirements within the uncertainty class. The source of the
real-time uncertainty estimation/prediction is the model error
signal, as it encodes the residual discrepancies between spacecraft
measurements and model output. The embedded model and the
uncertainty estimation feedback (noise estimator in the book)
constitute the state predictor feeding the control law. Asymptotic
pole placement (exploiting the asymptotes of closed-loop transfer
functions) is the way to design and tune feedback loops around the
embedded model (state predictor, control law, reference generator).
The design versus the uncertainty class is driven by analytic
stability and performance inequalities. The method is applied to
several attitude and orbit control problems.
Bio-inspired Algorithms for Engineering builds a bridge between the
proposed bio-inspired algorithms developed in the past few decades
and their applications in real-life problems, not only in an
academic context, but also in the real world. The book proposes
novel algorithms to solve real-life, complex problems, combining
well-known bio-inspired algorithms with new concepts, including
both rigorous analyses and unique applications. It covers both
theoretical and practical methodologies, allowing readers to learn
more about the implementation of bio-inspired algorithms. This book
is a useful resource for both academic and industrial engineers
working on artificial intelligence, robotics, machine learning,
vision, classification, pattern recognition, identification and
control.
Interval Finite Element Method with MATLAB provides a thorough
introduction to an effective way of investigating problems
involving uncertainty using computational modeling. The well-known
and versatile Finite Element Method (FEM) is combined with the
concept of interval uncertainties to develop the Interval Finite
Element Method (IFEM). An interval or stochastic environment in
parameters and variables is used in place of crisp ones to make the
governing equations interval, thereby allowing modeling of the
problem. The concept of interval uncertainties is systematically
explained. Several examples are explored with IFEM using MATLAB on
topics like spring mass, bar, truss and frame.
Sensors for Mechatronics, Second Edition, offers an overview of the
sensors and sensor systems required and applied in mechatronics.
Emphasis lies on the physical background of the operating
principles that is illustrated with examples of commercially
available sensors and recent developments. Chapters discuss the
general aspects of sensors, with a special section on quantities,
notations and relations. In addition, the book includes a section
devoted to sensor errors and error minimization that apply to most
of the sensors discussed. Each subsequent chapter deals with one
class of sensors, pursuing a classification according to physical
principles rather than measurands. Categories discussed include
resistive, capacitive, inductive and magnetic, optical,
piezoelectric and acoustic sensors. For each category of sensors, a
number of applications is given. Where appropriate, a section is
added on the interfacing of the sensor.
Advanced research in the field of mechatronics and robotics
represents a unifying interdisciplinary and intelligent engineering
science paradigm. It is a holistic, concurrent, and
interdisciplinary engineering science that identifies novel
possibilities of synergizing and fusing different disciplines. The
Handbook of Research on Advanced Mechatronic Systems and
Intelligent Robotics is a collection of innovative research on the
methods and applications of knowledge in both theoretical and
practical skills of intelligent robotics and mechatronics. While
highlighting topics including green technology, machine learning,
and virtual manufacturing, this book is ideally designed for
researchers, students, engineers, and computer practitioners
seeking current research on developing innovative ideas for
intelligent robotics and autonomous and smart interdisciplinary
mechatronic products.
Engineering Analysis with ANSYS Software, Second Edition, provides
a comprehensive introduction to fundamental areas of engineering
analysis needed for research or commercial engineering projects.
The book introduces the principles of the finite element method,
presents an overview of ANSYS technologies, then covers key
application areas in detail. This new edition updates the latest
version of ANSYS, describes how to use FLUENT for CFD FEA, and
includes more worked examples. With detailed step-by-step
explanations and sample problems, this book develops the reader's
understanding of FEA and their ability to use ANSYS software tools
to solve a range of analysis problems.
Advances in Applied Mechanics, Volume 50, draws together recent,
significant advances in various topics in applied mechanics.
Published since 1948, the book aims to provide authoritative review
articles on topics in the mechanical sciences. While the book is
ideal for scientists and engineers working in various branches of
mechanics, it is also beneficial to professionals who use the
results of investigations in mechanics in various applications,
such as aerospace, chemical, civil, environmental, mechanical and
nuclear engineering.
Fault Diagnosis and Sustainable Control of Wind Turbines: Robust
Data-Driven and Model-Based Strategies discusses the development of
reliable and robust fault diagnosis and fault-tolerant
('sustainable') control schemes by means of data-driven and
model-based approaches. These strategies are able to cope with
unknown nonlinear systems and noisy measurements. The book also
discusses simpler solutions relying on data-driven and model-based
methodologies, which are key when on-line implementations are
considered for the proposed schemes. The book targets both
professional engineers working in industry and researchers in
academic and scientific institutions. In order to improve the
safety, reliability and efficiency of wind turbine systems, thus
avoiding expensive unplanned maintenance, the accommodation of
faults in their early occurrence is fundamental. To highlight the
potential of the proposed methods in real applications,
hardware-in-the-loop test facilities (representing realistic wind
turbine systems) are considered to analyze the digital
implementation of the designed solutions. The achieved results show
that the developed schemes are able to maintain the desired
performances, thus validating their reliability and viability in
real-time implementations. Different groups of readers-ranging from
industrial engineers wishing to gain insight into the applications'
potential of new fault diagnosis and sustainable control methods,
to the academic control community looking for new problems to
tackle-will find much to learn from this work.
Opto-mechanical Fiber Optic Sensors: Research, Technology, and
Applications in Mechanical Sensing offers comprehensive coverage of
the theoretical aspects of fiber optic sensors (FOS), along with
current and emerging applications in the mechanical, petroleum,
biomedical, biomechanical, aerospace and automotive industries.
Special attention is given to FOS applications in harsh
environments. Due to recent technology advances, optical fibers
have found uses in many industrial applications. Various sectors
are major targets for FOS's capable of measuring mechanical
parameters, such as pressure, stress, strain and temperature.
Opto-mechanical FOS's offer unique advantages, including immunity
to electromagnetic interference, high fidelity and signal-to-noise
ratio, low-loss remote sensing and small size.
Time-Critical Cooperative Control of Autonomous Air Vehicles
presents, in an easy-to-read style, the latest research conducted
in the industry, while also introducing a set of novel ideas that
illuminate a new approach to problem-solving. The book is virtually
self-contained, giving the reader a complete, integrated
presentation of the different concepts, mathematical tools, and
control solutions needed to tackle and solve a number of problems
concerning time-critical cooperative control of UAVs. By including
case studies of fixed-wing and multirotor UAVs, the book
effectively broadens the scope of application of the methodologies
developed. This theoretical presentation is complemented with the
results of flight tests with real UAVs, and is an ideal reference
for researchers and practitioners from academia, research labs,
commercial companies, government workers, and those in the
international aerospace industry.
Introduction to Linear Control Systems is designed as a standard
introduction to linear control systems for all those who one way or
another deal with control systems. It can be used as a
comprehensive up-to-date textbook for a one-semester 3-credit
undergraduate course on linear control systems as the first course
on this topic at university. This includes the faculties of
electrical engineering, mechanical engineering, aerospace
engineering, chemical and petroleum engineering, industrial
engineering, civil engineering, bio-engineering, economics,
mathematics, physics, management and social sciences, etc. The book
covers foundations of linear control systems, their raison detre,
different types, modelling, representations, computations,
stability concepts, tools for time-domain and frequency-domain
analysis and synthesis, and fundamental limitations, with an
emphasis on frequency-domain methods. Every chapter includes a part
on further readings where more advanced topics and pertinent
references are introduced for further studies. The presentation is
theoretically firm, contemporary, and self-contained. Appendices
cover Laplace transform and differential equations, dynamics,
MATLAB and SIMULINK, treatise on stability concepts and tools,
treatise on Routh-Hurwitz method, random optimization techniques as
well as convex and non-convex problems, and sample midterm and
endterm exams. The book is divided to the sequel 3 parts plus
appendices. PART I: In this part of the book, chapters 1-5, we
present foundations of linear control systems. This includes: the
introduction to control systems, their raison detre, their
different types, modelling of control systems, different methods
for their representation and fundamental computations, basic
stability concepts and tools for both analysis and design, basic
time domain analysis and design details, and the root locus as a
stability analysis and synthesis tool. PART II: In this part of the
book, Chapters 6-9, we present what is generally referred to as the
frequency domain methods. This refers to the experiment of applying
a sinusoidal input to the system and studying its output. There are
basically three different methods for representation and studying
of the data of the aforementioned frequency response experiment:
these are the Nyquist plot, the Bode diagram, and the
Krohn-Manger-Nichols chart. We study these methods in details. We
learn that the output is also a sinusoid with the same frequency
but generally with different phase and magnitude. By dividing the
output by the input we obtain the so-called sinusoidal or frequency
transfer function of the system which is the same as the transfer
function when the Laplace variable s is substituted with . Finally
we use the Bode diagram for the design process. PART III: In this
part, Chapter 10, we introduce some miscellaneous advanced topics
under the theme fundamental limitations which should be included in
this undergraduate course at least in an introductory level. We
make bridges between some seemingly disparate aspects of a control
system and theoretically complement the previously studied
subjects. Appendices: The book contains seven appendices. Appendix
A is on the Laplace transform and differential equations. Appendix
B is an introduction to dynamics. Appendix C is an introduction to
MATLAB, including SIMULINK. Appendix D is a survey on stability
concepts and tools. A glossary and road map of the available
stability concepts and tests is provided which is missing even in
the research literature. Appendix E is a survey on the
Routh-Hurwitz method, also missing in the literature. Appendix F is
an introduction to random optimization techniques and convex and
non-convex problems. Finally, appendix G presents sample midterm
and endterm exams, which are class-tested several times.
This book conveys the theoretical and experimental basics of a
well-founded measurement technique in the areas of high DC, AC and
surge voltages as well as the corresponding high currents.
Additional chapters explain the acquisition of partial discharges
and the electrical measured variables. Equipment exposed to very
high voltages and currents is used for the transmission and
distribution of electrical energy. They are therefore tested for
reliability before commissioning using standardized and future test
and measurement procedures. Therefore, the book also covers
procedures for calibrating measurement systems and determining
measurement uncertainties, and the current state of measurement
technology with electro-optical and magneto-optical sensors is
discussed.
Nonlinear Theory of Elastic Plates provides the theoretical
materials necessary for the three plate models-Cosserat plates,
Reissner-Mindlin plates and Kirchhoff-Love plates- in the context
of finite elastic deformations. One separate chapter is devoted to
the linearized theory of Kirchhoff-Love plates, which allows for
the study of vibrations of a pre-stressed plate and the static
buckling of a plate. All mathematical results in the tensor theory
in curvilinear coordinates necessary to investigate the plate
theory in finite deformations are provided, making this a
self-contained resource.
Active Disturbance Rejection Control of Dynamic Systems: A Flatness
Based Approach describes the linear control of uncertain nonlinear
systems. The net result is a practical controller design that is
simple and surprisingly robust, one that also guarantees
convergence to small neighborhoods of desired equilibria or
tracking errors that are as close to zero as desired. This
methodology differs from current robust feedback controllers
characterized by either complex matrix manipulations, complex
parameter adaptation schemes and, in other cases, induced high
frequency noises through the classical chattering phenomenon. The
approach contains many of the cornerstones, or philosophical
features, of Model Free Control and ADRC, while exploiting flatness
and GPI control in an efficient manner for linear, nonlinear,
mono-variable and multivariable systems, including those exhibiting
inputs delays. The book contains successful experimental laboratory
case studies of diverse engineering problems, especially those
relating to mechanical, electro-mechanical, robotics, mobile
robotics and power electronics systems.
Maximum Dissipation: Non-Equilibrium Thermodynamics and its
Geometric Structure explores the thermodynamics of non-equilibrium
processes in materials. The book develops a general technique
created in order to construct nonlinear evolution equations
describing non-equilibrium processes, while also developing a
geometric context for non-equilibrium thermodynamics. Solid
materials are the main focus in this volume, but the construction
is shown to also apply to fluids. This volume also: * Explains the
theory behind thermodynamically-consistent construction of
non-linear evolution equations for non-equilibrium processes *
Provides a geometric setting for non-equilibrium thermodynamics
through several standard models, which are defined as maximum
dissipation processes * Emphasizes applications to the
time-dependent modeling of soft biological tissue Maximum
Dissipation: Non-Equilibrium Thermodynamics and its Geometric
Structure will be valuable for researchers, engineers and graduate
students in non-equilibrium thermodynamics and the mathematical
modeling of material behavior.
Pipeline engineers, operators, and plant managers are responsible
for the safety of pipelines, facilities, and staying on top of
regulatory compliance and maintenance. However, they frequently
need reference materials to support their decision, and many new
pipeline engineers and plant managers are responsible for major
repairs and decisions yet do not have the proper reference to set a
holistic integrity plan in place. Pipeline Integrity, Second
Edition delivers necessary pipeline inspection methods,
identification of hazard mechanisms, risk and consequence
evaluations, and repair strategies. Covering relevant standards and
processes for risk, assessment, and integrity management, this
go-to reference provides the principles that guide these concepts
enhanced with more critical regulatory information and easier
organization betwen liquid and gas pipelines. More detailed
information is provided on asset reliability, including risk-based
inspection and other inspection prioritizing tools such as
value-driven maintenance and evidence-based asset management.
Pipeline Integrity, Second Edition continues to provide engineers
and plants managers a vital resource for keeping their pipelines
and facilities safe and efficient.
The second edition of this textbook includes a refined presentation
of concepts in each chapter, additional examples; new problems and
sections, such as conformal mapping and mechanical behavior of
wood; while retaining all the features of the original book. The
material included in this book is based upon the development of
analytical and numerical procedures pertinent to particular fields
of linear elastic fracture mechanics (LEFM) and plastic fracture
mechanics (PFM), including mixed-mode-loading interaction. The
mathematical approach undertaken herein is coupled with a brief
review of several fracture theories available in cited references,
along with many color images and figures. Dynamic fracture
mechanics is included through the field of fatigue and Charpy
impact testing.
|
|