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Books > Professional & Technical > Mechanical engineering & materials > Mechanical engineering
This is an indespensible guide to both researchers in academia and
industry who wish to perform tribological experiments more
effectively. With an extensive range of illustrations which
communicate the basic concepts in experimental methods tribology
more effectively than text alone.
Techniques for Adaptive Control compiles chapters from a team of
expert contributors that allow readers to gain a perspective into a
number of different approaches to adaptive control. In order to do
this, each contributor provides an overview of a particular
product, how it works, and reasons why a user would want it as well
as an in depth explanation of their particular method.
As a result of the increased focus on modern compact machinery in industry, wear in lubricated contacts and the problems of running in, and scuffing has become the most important form of wear.Despite this trend, until now information on lubricated wear has been scattered across a wide number of journals, emphasizing only one aspect of the wear process. This new book is a unique resource, consolidating all the available information into one place. In doing this Sethuramiah, contributes significantly to the development of knowledge in the field, by highlighting knowledge gaps for future research. More immediate improvements in practice have been clearly identified with well-argued methodologies with which the present level of knowledge can be improved. This book will therefore prove an essential resource for all engineers and scientists with an interest in lubricated wear.
Instabilities of fluid flows and the associated transitions between different possible flow states provide a fascinating set of problems that have attracted researchers for over a hundred years. This book addresses state-of-the-art developments in numerical techniques for computational modelling of fluid instabilities and related bifurcation structures, as well as providing comprehensive reviews of recently solved challenging problems in the field.
This book focuses on theoretical aspects of dynamical systems in the broadest sense. It highlights novel and relevant results on mathematical and numerical problems that can be found in the fields of applied mathematics, physics, mechanics, engineering and the life sciences. The book consists of contributed research chapters addressing a diverse range of problems. The issues discussed include (among others): numerical-analytical algorithms for nonlinear optimal control problems on a large time interval; gravity waves in a reservoir with an uneven bottom; value distribution and growth of solutions for certain Painleve equations; optimal control of hybrid systems with sliding modes; a mathematical model of the two types of atrioventricular nodal reentrant tachycardia; non-conservative instability of cantilevered nanotubes using the Cell Discretization Method; dynamic analysis of a compliant tensegrity structure for use in a gripper application; and Jeffcott rotor bifurcation behavior using various models of hydrodynamic bearings.
Complete coverage from fundamentals to cutting-edge applications A solid understanding of tribology is essential for engineers in many fields working to design and ensure the reliability of machine parts and systems. This Introduction to Tribology presents detailed coverage of the mechanisms of friction, material wear, and all major lubrication techniques–liquids, solids, and gases–along with traditional and state-of-the-art applications, as well as the latest material coverage of micro/nanotribology, MEMS, and magnetic surface storage applications. The underlying theory and current applications of tribology are covered in an integrated treatment taken from a mechanical engineering, mechanics, and materials science point of view. This book’s straightforward presentation begins with the principles of tribology and prepares readers to understand the industrial applications of tribology. The principles of tribology and the emerging field of micro/nanotribology are then explored, and, finally, the author looks at tribological components and applications. Complete with exercises and problems, Introduction to Tribology is invaluable to mechanical, chemical, and materials engineers in product and process design, as well as students in mechanical, chemical, and materials engineering and physics courses.
The book presents novel Computational Fluid Dynamics (CFD) techniques to compute offshore wind and tidal applications. The papers in this volume are based on a mini-symposium held at ECCOMAS 2018. Computational fluid dynamics (CFD) techniques are regarded as the main design tool to explore the new engineering challenges presented by offshore wind and tidal turbines for energy generation. The difficulty and costs of undertaking experimental tests in offshore environments have increased the interest in CFD which is used to design appropriate turbines and blades, understand fluid flow physical phenomena associated with offshore environments, predict power production or characterise offshore environments amongst other topics.
The book investigates fundamental issues in flexible manipulator systems, including distributed parameter modeling and boundary controller design. It presents theoretical explorations of several fundamental problems concerning the dynamics and control of these systems. By integrating fresh concepts and results to form a systematic approach to control, it also provides a basic theoretical framework. In turn, the book offers a comprehensive treatment of flexible manipulator systems, addressing topics ranging from related distributed parameter modeling and advanced boundary controller design for these systems with input constraint, to active control with output constraint. In brief, the book addresses dynamical analysis and control design for flexible manipulator systems. Though primarily intended for researchers and engineers in the control system and mechanical engineering community, it can also serve as supplemental reading on the modeling and control of flexible manipulator systems at the postgraduate level.
Drag Reduction of Complex Mixtures discusses the concept of drag reduction phenomena in complex mixtures in internal and external flows that are shown experimentally by dividing flow patterns into three categories. The book is intended to support further experiments or analysis in drag reduction. As accurately modeling flow behavior with drag reduction is always complex, and since drag reducing additives or solid particles are mixed in fluids, this book covers these complex phenomena in a concise, but comprehensive manner.
This thesis investigates the tribological viability of bio-based base stock to which different nanoparticles were incorporated for engine piston-ring-cylinder-liner interaction. It determines experimentally the effects of lubricating oil conditions (new and engine-aged) on the friction and wear of the materials used for piston rings and cylinder liners. The specific base stock examined was a trimethylolpropane (TMP) ester derived from palm oil, and the nanoparticles were used as additives to obtain tribologically enhanced bio-based lubricants. The overall analysis of the results demonstrated the potential of nanoparticles to improve the tribological behavior of bio-based base stock for piston-ring-cylinder-liner interaction.
This book provides a concise introduction to the physical foundations of the electro-discharge technology and applies it to the drilling of wells, the demolition of reinforced concrete objects, and the cutting of cracks in rocks and concrete. The electro-physical basis of this technology and the technical implementation of using spark discharge as a "working tool" in the above-mentioned contexts are also briefly considered. The book is intended for all scientists and experts working in the field of resource exploration and extraction, those engaged in building new objects, and in reconstructing or demolishing old ones. It can also be used as a textbook by students and postgraduates, deepening their knowledge of these innovative technologies.
The model presented in this manual for the IT professional helps
managers work with tech workers and their customers to make a clear
and well-substantiated argument for IT service investments. In
order to validate and fully explain this model, Wigodsky presents
an overview of the "why" behind technology investment for any
organization, and combines this with detailed real-world solutions
that maximize BCO efficiency. By eliminating the "futz factor"
commonly associated with system ownership costs, the book provides
a glimpse of the next generation IT architecture, a repeatable
process for identifying organization-wide system costs, and a
customizable model for integrating BCO management with your people,
processes, and technology.
This is the second revised and enhanced edition of the book Gas Turbine Design, Components and System Integration written by a world-renowned expert with more than forty years of active gas turbine R&D experience. It comprehensively treats the design of gas turbine components and their integration into a complete system. Unlike many currently available gas turbine handbooks that provide the reader with an overview without in-depth treatment of the subject, the current book is concentrated on a detailed aero-thermodynamics, design and off-deign performance aspects of individual components as well as the system integration and its dynamic operation. This new book provides practicing gas turbine designers and young engineers working in the industry with design material that the manufacturers would keep proprietary. The book is also intended to provide instructors of turbomachinery courses around the world with a powerful tool to assign gas turbine components as project and individual modules that are integrated into a complete system. Quoting many statements by the gas turbine industry professionals, the young engineers graduated from the turbomachinery courses offered by the author, had the competency of engineers equivalent to three to four years of industrial experience.
In today's global context, there has been extensive research conducted in reducing harmful emissions to conserve and protect our environment. In the automobile and power generation industries, diesel engines are being utilized due to their high level of performance and fuel economy. However, these engines are producing harmful pollutants that contribute to several global threats including greenhouse gases and ozone layer depletion. Professionals have begun developing techniques to improve the performance and reduce emissions of diesel engines, but significant research is lacking in this area. Recent Technologies for Enhancing Performance and Reducing Emissions in Diesel Engines is a pivotal reference source that provides vital research on technical and environmental enhancements to the emission and combustion characteristics of diesel engines. While highlighting topics such as biodiesel emulsions, nanoparticle additives, and mathematical modeling, this publication explores the potential additives that have been incorporated into the performance of diesel engines in order to positively affect the environment. This book is ideally designed for chemical and electrical engineers, developers, researchers, power generation professionals, mechanical practitioners, scholars, ecologists, scientists, graduate students, and academicians seeking current research on modern innovations in fuel processing and environmental pollution control.
Socially Responsible IT Management shows IT professionals how to
overcome the social crisis that has resulted from the wide-spread
use of information technology. By responsibly managing security
threats, protecting individual privacy, reducing hazardous waste,
and minimizing other negative effects on IT staff and computer
users, as well as ordinary citizens around the world, IT
professionals can benefit the society at large and reap rewards for
their own organizations as well.
The surface characterizations of engineering materials effects
their scratch/abrasion/Mar resistance, coating adhesion/strength,
and abrasive wear mechanism.
Efficient numerical solution of realistic and, therefore, complex
equation systems occupies many researchers in many disciplines. For
various reasons, but mainly in order to approximate reality, a very
large number of unknowns are needed. Using classical techniques,
the solution of such a system of equations would take too long, and
so sometimes MultiLevel techniques are used to accelerate
convergence. Over the last one and a half decades, the authors have
studied the problem of Elastohydrodynamic Lubrication, governed by
a complex integro-differential equation. Their work has resulted in
a very efficient and stable solver. In this book they describe the
different intermediate problems analyzed and solved, and how those
ingredients finally come together in the EHL solver. A number of
these intermediate problems, such as Hydrodynamic Lubrication and
Dry Contact, are useful in their own right. In the Appendix the
full codes of the Poisson problem, the Hydrodynamic Lubrication
problem, the dry contact solver and the EHL solver are given. These
codes are all written in 'C' language, based on the 'ANSI-C'
version. |
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