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Books > Professional & Technical > Mechanical engineering & materials > Mechanical engineering > General
This book presents a hybrid approach to the mechanics of thin
bodies. Classical theories of rods, plates and shells with
constrained shear are based on asymptotic splitting of the
equations and boundary conditions of three-dimensional elasticity.
The asymptotic solutions become accurate as the thickness
decreases, and the three-dimensional fields of stresses and
displacements can be determined. The analysis includes practically
important effects of electromechanical coupling and material
inhomogeneity. The extension to the geometrically nonlinear range
uses the direct approach based on the principle of virtual work.
Vibrations and buckling of pre-stressed structures are studied with
the help of linearized incremental formulations, and direct tensor
calculus rounds out the list of analytical techniques used
throughout the book. A novel theory of thin-walled rods of open profile is subsequently developed from the models of rods and shells, and traditionally applied equations are proven to be asymptotically exact. The influence of pre-stresses on the torsional stiffness is shown to be crucial for buckling analysis. Novel finite element schemes for classical rod and shell structures are presented with a comprehensive discussion regarding the theoretical basis, computational aspects and implementation details. Analytical conclusions and closed-form solutions of particular problems are validated against numerical results. The majority of the simulations were performed in the Wolfram Mathematica environment, and the compact source code is provided as a substantial and integral part of the book.
This volume elaborates on mechatronics as the synergistic integration of mechanical engineering with electronics and intelligent computer control in the design and manufacturing of industrial products and processes. It considers the integration of mechanical systems (mechanical elements, components, machines), electronic systems (microelectronics, sensor and actuator technology), and information technology. The book's chapters present the principles of mechatronic systems design and solid materials in small elementary steps, provide an abundance of examples, and feature problems that are as practical as possible without becoming too involved with many extraneous details.
Complex illumination and meteorological conditions can significantly limit the robustness of robotic vision systems. This book focuses on image pre-processing for robot vision in complex illumination and dynamic weather conditions. It systematically covers cutting-edge models and algorithms, approaching them from a novel viewpoint based on studying the atmospheric physics and imaging mechanism. It provides valuable insights and practical methods such as illumination calculations, scattering modeling, shadow/highlight detection and removal, intrinsic image derivation, and rain/snow/fog removal technologies that will enable robots to be effective in diverse lighting and weather conditions, i.e., ensure their all-weather operating capacity. As such, the book offers a valuable resource for researchers, graduate students and engineers in the fields of robot engineering and computer science.
This volume enables readers to interpret and predict the effective mechanical properties of existing and emerging composites through modeling and design. The book addresses that materials and structures with small-scale dimensions do not behave in the same manner as their bulk counterparts. Once the dimensions of the materials are reduced to the micron and sub-micron range, their properties are subject to significant change. Thus, mechanical properties will be varied and will depend on the sample size. In the meantime, due to the large surface-to-volume ration of small structures, deformation mechanisms are subject to change. This volume integrates various approaches in micromechanics and nanomechanics into a unified mathematical framework, complete with coverage of both linear and nonlinear behaviors. It weaves together the basic concepts, mathematical fundamentals, and formulations of micromechanics and nanomechanics into a systemic approach for understanding and modeling the effective material behavior of composite materials. While providing information on recent developments in the mathematical framework of micro- and nanomechanics, the volume addresses highly localized phenomena and a number of interesting applications. It also illustrates application of micromechanical and nanomechanical theory to design novel engineering materials.
Covers development of oxide dispersion strengthened sustainable material to withstand high temperature environment Describes stimulating application oriented final mechanical properties Illustrates fabrication of alloys through effective route in order to achieve desired properties Presents in-depth comprehension of deformation behavior at ambient and high temperature Explores critical applications of the alloys in nuclear reactors, defense and aviation sectors
In recent years fractional calculus has played an important role in various fields such as mechanics, electricity, chemistry, biology, economics, modeling, identification, control theory and signal processing. The scope of this book is to present the state of the art in the study of fractional systems and the application of fractional differentiation. Furthermore, the manufacture of nanowires is important for the design of nanosensors and the development of high-yield thin films is vital in procuring clean solar energy. This wide range of applications is of interest to engineers, physicists and mathematicians.
The HMM2004 International Symposium on History of Machines and Mechanisms is the second event of a series that has been started in 2000 as main activity of the IFToMM Permanent Commission for History of MMS, Mechanism and Machine Science. The aim of the HMM Symposium is to be a forum to exchange views, opinions, and experiences on History of MMS from technical viewpoints in order to track the past but also to look at future developments in MMS. The HMM Symposium Series is devoted to the technical aspects of historical deve- pments and therefore it has been addressed mainly to the IFToMM Community. In fact, most the authors of the contributed papers are experts in MMS and related topics. This year HMM Symposium came back to Cassino, after the challenging first event in 2000. The HMM2004 International Symposium on History of Machines and Mechanisms was held at the University of Cassino, Italy, from 12 to 15 May 2004. These Proceedings contain 29 papers by authors from all around the world. These papers cover the wide field of the History of Mechanical Engineering and particularly the History of MMS. The contributions address mainly technical aspects of historical developments of Machines and Mechanisms. History of IFToMM, the International Federation for the Promotion of Mechanism and Machine Science is also outlined through the historical activities of some of its Commissions.
Research in vibration response control deals not only with prevention of catastrophic failures of structures during natural or accidental/manmade hazards but also ensures the comfort of occupants through serviceability. Therefore, the focus of this book is on the theory of dynamic response control of structures by using different kinds of passive vibration control devices. The strategies used for controlling displacement, velocity, and acceleration response of structures such as buildings, bridges, and liquid storage tanks under the action of dynamic loads emanating from earthquake, wind, wave, and so forth are detailed. The book: Explains fundamentals of vibration response control devices and their practical applications in response mitigation of structures exposed to earthquake, wind, and wave loading Offers a comprehensive overview of each passive damper, its functioning, and mathematical modeling in a dynamical system Covers practical aspects of employing the passive control devices to some of the benchmark problems that are developed from existing buildings and bridges in different countries worldwide Includes MATLAB (R) codes for determining the dynamic response of single degree of freedom (SDOF) and multi-degree of freedom (MDOF) systems along with computational models of the passive control devices This book is aimed at senior undergraduate students, graduate students, and researchers in civil, earthquake, aerospace, automotive, mechanical engineering, engineering dynamics, and vibration control, including structural engineers, architects, designers, manufacturers, and other professionals.
Foreign Object Debris and Damage in Aviation discusses both biological and non-biological Foreign Object Debris (FOD) and associated Foreign Object Damage (FOD) in aviation. The book provides a comprehensive treatment of the wide spectrum of FOD with numerous cost, management, and wildlife considerations. Management control for the debris begins at the aircraft design phase, and the book includes numerical analyses for estimating damage caused by strikes. The book explores aircraft operation in adverse weather conditions and inanimate FOD management programs for airports, airlines, airframe, and engine manufacturers. It focuses on the sources of FOD, the categories of damage caused by FOD, and both the direct and indirect costs caused by FOD. In addition, the book provides management plans for wildlife, including positive and passive methods. The book will interest aviation industry personnel, aircraft transport and ground operators, aircraft pilots, and aerospace or aviation engineers. Readers will learn to manage FOD to guarantee air traffic safety with minimum costs to airlines and airports.
Surface Structure Modification and Hardening of Al-SI Alloys explores the hardening of material surfaces using concentrated energy flows resulting in the nanostructuring of surface layers. The authors demonstrate how these methods achieve a reduction in plastic deformation of the surface and a more uniform distribution of elastic stresses near the surface during operational use, significantly reducing part failure. It presents results from research and scientific and technological enterprises involved with the modification of light alloy surfaces for use in the automobile and aerospace industries. Additional key features include: Addresses theoretical and experimental research computer simulations of structural phase transformations at the nanolevel to create new materials Details and compares electroexplosion alloying, electron beam processing and electron-plasma alloying of an Al-Si Alloy Explains multiphase plasma jet treatment to obtain high-quality coatings with good and high functional properties This reference is a valuable resource for specialists in the field of physical material science, condensed state physics, metal science and thermal treatment and will be of interest to undergraduate and post-graduate students in these fields.
Nonlinear Mechanics for Composite Heterogeneous Structures applies both classical and multi-scale finite element analysis to the non-linear, failure response of composite structures. These traditional and modern computational approaches are holistically presented, providing insight into a range of non-linear structural analysis problems. The classical methods include geometric and material non-linearity, plasticity, damage and contact mechanics. The cutting-edge formulations include cohesive zone models, the Extended Finite Element Method (XFEM), multi-scale computational homogenization, localization of damage, neural networks and data-driven techniques. This presentation is simple but efficient, enabling the reader to understand, select and apply appropriate methods through programming code or commercial finite element software. The book is suitable for undergraduate studies as a final year textbook and for MSc and PhD studies in structural, mechanical, aerospace engineering and material science, among others. Professionals in these fields will also be strongly benefited. An accompanying website provides MATLAB codes for two-dimensional finite element problems with contact, multi-scale (FE2) and non-linear XFEM analysis, data-driven and machine learning simulations.
describes more than thirty Physics practicals at high school and undergraduate level. There's background information on each one, a description of the equipment needed, and how the experiment is performed. Uniquely, for those without access to a real laboratory, the book gives you access to highly detailed 3d simulations of all the experiments.
Advanced Mechanical Vibrations: Physics, Mathematics and Applications provides a concise and solid exposition of the fundamental concepts and ideas that pervade many specialised disciplines where linear engineering vibrations are involved. Covering the main key aspects of the subject - from the formulation of the equations of motion by means of analytical techniques to the response of discrete and continuous systems subjected to deterministic and random excitation - the text is ideal for intermediate to advanced students of engineering, physics and mathematics. In addition, professionals working in - or simply interested in - the field of mechanical and structural vibrations will find the content helpful, with an approach to the subject matter that places emphasis on the strict, inextricable and sometimes subtle interrelations between physics and mathematics, on the one hand, and theory and applications, on the other hand. It includes a number of worked examples in each chapter, two detailed mathematical appendixes and an extensive list of references.
Applied Research in Hydraulics and Heat Flow covers modern subjects of mechanical engineering such as fluid mechanics, heat transfer, and flow control in complex systems as well as new aspects related to mechanical engineering education. The chapters help to enhance the understanding of both the fundamentals of mechanical engineering and their application to the solution of problems in modern industry. The book includes the most popular applications-oriented approach to engineering fluid mechanics and heat transfer. It offers a clear and practical presentation of all basic principles of fluid mechanics and heat transfer, tying theory directly to real devices and systems used in mechanical and chemical engineering. It presents new procedures for problem-solving and design, including measurement devices and computational fluid mechanics and heat transfer. This book is suitable for students, both in upper-level undergraduate and graduate mechanical engineering courses. The book also serves as a useful reference for academics, hydraulic engineers, and professionals in fields related to mechanical engineering who want to review basic principles and their applications in hydraulic engineering systems. This fundamental treatment of engineering hydraulics balances theory with practical design solutions to common engineering problems. The authors examine the most common topics in hydraulics, including hydrostatics, pipe flow, pipelines, pipe networks, pumps, hydraulic structures, water measurement devices, and hydraulic similitude and model studies. A glossary of terms, case studies, list of abbreviations, and recent references are included.
This volume provides valuable insight into diverse topics related to mechanical engineering and presents state-of-the-art work on sustainable development being carried out throughout the world by budding researchers and scientists. Divided into three sections, the volume covers machine design, materials and manufacturing, and thermal engineering. It presents innovative research work on machine design that is of relevance to such varied fields as the automotive industry, agriculture, and human anatomy. The second section addresses materials characterization, an important tool in assessing proper materials for application-oriented jobs, and emerging unconventional machining processes that are important in design engineering for new products and tools. The section on thermal engineering broadly covers the use of viable alternate fuels, such as HHO, biodiesel, etc., with the objective of reducing the burden on petroleum reserves and the environment.
This important work covers the fundamentals of finite deformation in solids and constitutive relations for different types of stresses in large deformation of solids. In addition, the book covers the fracture phenomena in brittle or quasi-brittle materials in which large deformation does not occur. The book provides a thorough understanding of fracture mechanics as well. Since mathematical proof with full derivation is demonstrated throughout the book, readers will gain the skills to understand and drive the basic concepts on their own, enabling them to put forward new ideas and solutions. Finite deformations in material can occur with change of geometry such that the deformed shape may not resemble the initial shape. Analyzing these types of deformations needs a particular mathematical tool that is always associated with tensor notations. In general the geometry may be non-orthogonal, and the use of covariant and contra-variant tensor concepts to express the finite deformations and the associated mechanical strains are needed. In addition, it is obvious that in large deformations, there are several definitions for stress, each depending on the frame of the stress definitions. The constitutive equations in material also depends on the type of stress that is introduced. In simulation of the material deformation, components of the deformation tensor will be transformed from one frame to another either in orthogonal or in non-orthogonal coordinate of geometry. This informative book covers all this in detail.
This book follows a simple approach, and introduces analytical procedures to analyze various structural members subjected to different types of loading with step-by-step problem-solving procedure is discussed. The book covers some advanced topics like curved beams, shear center, unit load method. Aa exclusive chapter on "Solving through ANSYS" covers the approach and usage of ANSYS software. Note: T& F does not sell or distribute the Hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.
This book covers crucial lacunae of the linear discrete-time time-invariant dynamical systems and introduces the reader to their treatment, while functioning under real, natural conditions, in forced regimes with arbitrary initial conditions. It provides novel theoretical tools necessary for the analysis and design of the systems operating in stated conditions. The text completely covers two well-known systems, IO and ISO, along with a new system, IIO. It discovers the concept of the full transfer function matrix F(z) in the z-complex domain, which incorporates the Z-transform of the system, input and another variable, vectors, all with arbitrary initial conditions. Consequently, it addresses the full system matrix P(z) and the full block diagram technique based on the use of F(z), which incorporates the Z-transform of the system, input and another variable, vectors, all with arbitrary initial conditions. The book explores the direct relationship between the system full transfer function matrix F(z) and the Lyapunov stability concept, definitions, and conditions, as well as with the BI stability concept, definitions, and conditions. The goal of the book is to unify the study and applications of all three classes of the linear discrete-time time-invariant system, for short systems.
Now in its fourth edition, Mechanical Engineering has been revised to be in line with the technical qualifications of the new engineering apprenticeship standards at Level 3. In addition, four new chapters are included that cover static and dynamic engineering systems, fluid systems and additive manufacturing. The text covers eight units of the BTEC L3 Advanced Manufacturing Engineering Development Technical Knowledge qualification, as well as some content in the BTEC National Engineering Syllabus and BTEC L3 Aerospace and Aviation Engineering specialist qualifications. It also covers some of the content in the EAL L3 Advanced Manufacturing Engineering Development Technical Knowledge qualification. To enhance learning, mathematical theory is backed up with numerous examples to work through. There are also activities for students to complete out of the classroom that help put the theory into context. Test your knowledge quizzes throughout the text enable students to test their understanding, while end of unit review questions are helpful for exam revision and course work. This book is ideal for students undertaking Level 3 courses in engineering although students undertaking Level 4 engineering courses will also find the content of the book useful to their studies. Alan Darbyshire is a retired Further Education lecturer and experienced textbook author for Intermediate GNVQ and AVCE. He drafted several of the mechanical engineering units for the BTEC National specifications. Charles Gibson completed an aeronautical mechanical engineering apprenticeship, and then spent 16 years in the Royal Navy maintaining military helicopters before retiring from the military in 2008. Since then, he has worked in Further Education as the Head of Aeronautical Engineering at City of Bristol College where he also taught on several programmes, including BTECs in Aeronautical Engineering and Foundation Degrees. In 2013, he transferred to Yeovil College where he continues to teach on engineering programmes from Level 2 to Level 5. He has also been involved in the writing of engineering technical knowledge qualifications for several engineering apprenticeship standards.
This book opens with an explanation of the vibrations of a single degree-of-freedom (dof) system for all beginners. Subsequently, vibration analysis of multi-dof systems is explained by modal analysis. Mode synthesis modeling is then introduced for system reduction, which aids understanding in a simplified manner of how complicated rotors behave. Rotor balancing techniques are offered for rigid and flexible rotors through several examples. Consideration of gyroscopic influences on the rotordynamics is then provided and vibration evaluation of a rotor-bearing system is emphasized in terms of forward and backward whirl rotor motions through eigenvalue (natural frequency and damping ratio) analysis. In addition to these rotordynamics concerning rotating shaft vibration measured in a stationary reference frame, blade vibrations are analyzed with Coriolis forces expressed in a rotating reference frame. Other phenomena that may be assessed in stationary and rotating reference frames include stability characteristics due to rotor internal damping and instabilities due to asymmetric shaft stiffness and thermal unbalance behavior.
Presents Total Manufacturing Assurance (TMA) as a holistic approach to manufacturing operations Focuses on analytics and performance assessment, along with Industry 4.0 and its role in advanced manufacturing, strategic planning, Innovation and engineering economics, as well as manufacturing processes, materials, and operations. It also covers product and manufacturing system reliability, maintainability, availability, quality, and safety, financial issues in decision making and engineering analysis Offers a case study for each chapter highlighting key TMA connections all with the same structure of overview, issue, objective, approach, results, and conclusion Discusses management and engineering techniques and tools, and their practical implementation, required to achieve TMA Expands on integrating fundamental manufacturing, engineering, and management topics, which are key in achieving TMA PowerPoint slides and a solutions manual are available to instructors for course adoptions.
Interoperability of enterprises is one of the main requirements for economical and industrial collaborative networks. Enterprise interoperability (EI) is based on the three domains: architectures and platforms, ontologies and enterprise modeling. This book presents the EI vision of the Grand Sud-Ouest pole (PGSO) of the European International Virtual Laboratory for Enterprise Interoperability (INTEROP-VLab). It includes the limitations, concerns and approaches of EI, as well as a proposed framework which aims to define and delimit the concept of an EI domain. The authors present the basic concepts and principles of decisional interoperability as well as concept and techniques for interoperability measurement. The use of these previous concepts in a healthcare ecosystem and in an extended administration is also presented.
Nanoengineering, Quantum Sciences, and Nanotechnology Handbook provides a consistent coverage to a broad spectrum of issues in nanoscale electronics, energy sources and materials. Basic fundamentals, recent innovations, novel solutions, emerging technologies, far-reaching developments, and new paradigms are covered in the book. The Handbook's chapters document practical solutions with applications. The contributed chapters focus on balanced coverage on technology frontiers, envisioned innovations and discoveries with substantiation and justifications towards technology developments.
The Symposium was aimed at the theoretical and numerical problems involved in modelling the dynamic response of structures which have uncertain properties due to variability in the manufacturing and assembly process, with automotive and aerospace structures forming prime examples. It is well known that the difficulty in predicting the response statistics of such structures is immense, due to the complexity of the structure, the large number of variables which might be uncertain, and the inevitable lack of data regarding the statistical distribution of these variables. The Symposium participants presented the latest thinking in this very active research area, and novel techniques were presented covering the full frequency spectrum of low, mid, and high frequency vibration problems. It was demonstrated that for high frequency vibrations the response statistics can saturate and become independent of the detailed distribution of the uncertain system parameters. A number of presentations exploited this physical behaviour by using and extending methods originally developed in both phenomenological thermodynamics and in the fields of quantum mechanics and random matrix theory. For low frequency vibrations a number of presentations focussed on parametric uncertainty modelling (for example, probabilistic models, interval analysis, and fuzzy descriptions) and on methods of propagating this uncertainty through a large dynamic model in an effi cient way. At mid frequencies the problem is mixed, and various hybrid schemes were proposed. It is clear that a comprehensive solution to the problem of predicting the vibration response of uncertain structures across the whole frequency range requires expertise across a wide range of areas (including probabilistic and non-probabilistic methods, interval and info-gap analysis, statistical energy analysis, statistical thermodynamics, random wave approaches, and large scale computations) and this IUTAM symposium presented a unique opportunity to bring together outstanding international experts in these fields." |
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