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Books > Professional & Technical > Technology: general issues > Technical design
Gain a Deeper Understanding of Mechanical Fastening: Assemble More Efficient and Competitive Products A good design, quality parts, and properly executed assembly procedures and processes result in well-fastened assemblies. Utilizing a combined knowledge of mechanical assembly engineering and fastening technology, Mechanical Fastening, Joining, and Assembly, Second Edition provides readers with a solid understanding of mechanical fastening, joining, and assembly information. Based on the author's experience in the field, this updated mechanical arts guide and reference chronicles the technical progress since the first edition was published more than a decade ago. Provides Case Studies Showing Real-World Applications for Commonly Used Assemblies The second edition addresses recent trends in the industry, and looks at new fastening technologies used in aerospace, automotive, and other key areas. It explains the fastening function in depth, and describes the types of fastening approaches that can be used effectively. The revised text expands on the presentation and review of fastened components, detailing the assembly, design, manufacturing, and installation of fastener products and procedures. It covers specific joining applications, including vibration, standard, and special materials; details environmental factors; and provides useful reference charts for future use. What's New in the Second Edition: Provides an up-to-date selection of technologies Contains practical approaches to modern fastener technology Reviews engineering fundamentals with a focus on their application in the fastener industry Includes a section on fastener statics Expands on fastener manufacturing processes, most specifically cold heading and roll threading Adds fastener dynamics to draw attention to forces in motion (wind turbine hub turning in strong winds) and fastener strength of materials Extends review of the economics of fastening and provides some tools for engineering economics Examines the difference in static and dynamic strengths Considers fastener materials in this new century, provides some observations about the fastener laboratory, and discusses electrical theory Addresses sustainability, application product management, thermodynamics, energy systems, and new thought maps for application analysis Takes a look at a favorite application, D&D 100, and more Mechanical Fastening, Joining, and Assembly, Second Edition is accessible to novices and experienced technologists and engineers, and covers the latest in fastener technology and assembly training.
This book presents the scientific principles and real-world best practices of behavioral safety, one of the most mature and impactful applications of behavioral science to reduce injuries in industrial workplaces. The authors review the core principles of behavioral science and their application to modern safety processes. Process components are discussed in detail, including risk analysis and pinpointing, direct observation, performance feedback, reinforcing engagement, trending and functional analysis, behavior change interventions, and program evaluation. Discussions are complemented by industry best-practice case studies from world-class behavioral safety programs accredited by the Cambridge Center for Behavioral Studies (CCBS), which provide compelling evidence of the effectiveness of these behavioral science principles in reducing injury. The Science and Best Practices of Behavioral Safety is essential reading for safety professionals, process safety engineers, and leaders in companies who have implemented, or are considering implementing, behavioral safety; or as an aid to learning more about the scientific background behind effective and practical safety practices. Researchers, expert consultants, and students who are already familiar with the practice will also find the book a valuable source to further develop their expertise.
Data Mining introduces in clear and simple ways how to use existing data mining methods to obtain effective solutions for a variety of management and engineering design problems. Data Mining is organised into two parts: the first provides a focused introduction to data mining and the second goes into greater depth on subjects such as customer analysis. It covers almost all managerial activities of a company, including: * supply chain design, * product development, * manufacturing system design, * product quality control, and * preservation of privacy. Incorporating recent developments of data mining that have made it possible to deal with management and engineering design problems with greater efficiency and efficacy, Data Mining presents a number of state-of-the-art topics. It will be an informative source of information for researchers, but will also be a useful reference work for industrial and managerial practitioners.
Shape interrogation is the process of extraction of information from a geometric model. It is a fundamental component of Computer Aided Design and Manufacturing (CAD/CAM) systems. The authors focus on shape interrogation of geometric models bounded by free-form surfaces. Free-form surfaces, also called sculptured surfaces, are widely used in the bodies of ships, automobiles and aircraft, which have both functionality and attractive shape requirements. Many electronic devices as well as consumer products are designed with aesthetic shapes, which involve free-form surfaces. This book provides the mathematical fundamentals as well as algorithms for various shape interrogation methods including nonlinear polynomial solvers, intersection problems, differential geometry of intersection curves, distance functions, curve and surface interrogation, umbilics and lines of curvature, geodesics, and offset curves and surfaces. This book will be of interest both to graduate students and professionals.
Parallel CFD 2008, the twentieth in the high-level international series of meetings featuring different aspect of parallel computing in computational?uid dynamics and other modern scienti?c domains was held May 19?22, 2008 in Lyon, France. The themes of the 2008 meeting included the traditional emphases of this c- ference, and experiences with contemporary architectures. Around 70 presentations were included into the conference program in the following sessions: Parallel Algorithms and solvers Parallel performances with contemporary architectures Structured and unstructured grid methods, boundary methods software framework and components architecture CFD applications(Bio ?uid, environmentalproblem)Lattice Boltzmannmethodand SPH Optimisation in Aerodynamics This book presents an up-to-date overviewof the state of the art in Parallel C- putational Fluid Dynamics from Asia, Europe, and North America. This reviewed proceedingsincluded about sixty percent of the oral lectures presented at the conf- ence. The editors. VI Preface Parallel CFD 2008 was organized by the Institut Camille Jordan of the Univ- sity of Lyon 1 in collaboration with the Center for the Development of the Parallel Scienti?c Computing. The Scienti?c Committee and Local Organizers of Parallel CFD 2008 are - lighted to acknowledge the generous sponsorship of the following organizations, through ?nancial or in-kind assistance. Assistance of our sponsors allowed to - ganize scienti?c as well as social program of the conference.
High Performance Fiber Reinforced Cement Composites (HPFRCC) re-present a class of cement composites whose stress-strain response in tension undergoes strain hardening behaviour accompanied by multiple cracking, leading to a high strain capacity prior to failure. The primary objective of this International Workshop was to provide a compendium of up-to-date information on the most recent developments and research advances in the field of High Performance Fiber Reinforced Cement Composites. Approximately 65 contributions from leading world experts are assembled in these proceedings and provide an authoritative perspective of the subject. Special topics include mechanical behavior under compressive, tensile, and shear loading, impact and fire resistance, self-compacting mixtures, fresh and hardening state properties, durability issues, hybrid composites, ultra-high performance fiber reinforced concrete, textile reinforced concrete and structural applications, including modelling, design and retrofit/repair. Target readers: graduate students, researchers, fiber producers, design engineers, material scientists
This volume consists of papers presented at the Variational Analysis and Aerospace Engineering Workshop II held in Erice, Italy in September 2010 at the International School of Mathematics "Guido Stampacchia." The workshop provided a platform for aerospace engineers and mathematicians (from universities, research centers and industry) to discuss the advanced problems requiring an extensive application of mathematics. The presentations were dedicated to the most advanced subjects in engineering and, in particular to computational fluid dynamics methods, introduction of new materials, optimization in aerodynamics, structural optimization, space missions, flight mechanics, control theory and optimization, variational methods and applications, etc. This book will capture the interest of researchers from both academia and industry. "
Microprocessors increasingly control and monitor our most critical systems, including automobiles, airliners, medical systems, transportation grids, and defense systems. The relentless march of semiconductor process technology has given engineers exponentially increasing transistor budgets at constant recurring cost. This has encouraged increased functional integration onto a single die, as well as increased architectural sophistication of the functional units themselves. Additionally, design cycle times are decreasing, thus putting increased schedule pressure on engineers. Not surprisingly, this environment has led to a number of uncaught design flaws. Traditional simulation-based design verification has not kept up with the scale or pace of modern microprocessor system design. Formal verification methods offer the promise of improved bug-finding capability, as well as the ability to establish functional correctness of a detailed design relative to a high-level specification. However, widespread use of formal methods has had to await breakthroughs in automated reasoning, integration with engineering design languages and processes, scalability, and usability. This book presents several breakthrough design and verification techniques that allow these powerful formal methods to be employed in the real world of high-assurance microprocessor system design.
This book serves as a reference for researchers and designers in Embedded Systems who need to explore design alternatives. It provides a design space exploration methodology for the analysis of system characteristics and the selection of the most appropriate architectural solution to satisfy requirements in terms of performance, power consumption, number of required resources, etc. Coverage focuses on the design of complex multimedia applications, where the choice of the optimal design alternative in terms of application/architecture pair is too complex to be pursued through a full search comparison, especially because of the multi-objective nature of the designer 's goal, the simulation time required and the number of parameters of the multi-core architecture to be optimized concurrently.
Many systems, devices and appliances used routinely in everyday life, ranging from cell phones to cars, contain significant amounts of software that is not directly visible to the user and is therefore called "embedded." For coordinating the various software components and allowing them to communicate with each other, support software is needed, called an operating system (OS). Because embedded software must function in real time (RT), a RTOS is needed. This book describes a formally developed, network-centric Real-Time Operating System, OpenComRTOS. One of the first in its kind, OpenComRTOS was originally developed to verify the usefulness of formal methods in the context of embedded software engineering. Using the formal methods described in this book produces results that are more reliable while delivering higher performance. The result is a unique real-time concurrent programming system that supports heterogeneous systems with just 5 Kbytes/node. It is compatible with safety related engineering standards, such as IEC61508.
* State-of-the-art examination of the theory and practice of system innovation* Introduces the concept of PSS innovation and outlines the characteristics* Examines a wide range of potential research directions on sustainable PSS design* Valuable resource for design students, teachers and practicing designersThis book is a state-of-the-art examination of the theory and practice of system innovation through Product-Service System (PSS) design for sustainability from a trans-cultural viewpoint. PSS design incorporates innovative strategies that shift businesses away from designing and selling physical products to developing integrated systems of products and services. The book provides background, advice and tools for designers and design students interested in sustainable PSSs and has a wealth of case studies for practitioners to digest. The first part of the book introduces the concept of PSS innovation, outlining the characteristics and features of such innovation, how different types of PSS can be classified, and which are the related benefits, drivers and barriers. It argues that such innovation has the capability to potentially bring radical reductions in the current levels of resource consumption, without minimizing consumer levels of satisfaction.The second part of the book examines a wide range of potential research directions on sustainable PSS design including: Sustainable PSS in different socio-economic contexts (industrialized, emerging and low income) Sustainable PSS in different organizational bodies (companies, public administrations, NGOs) Sustainable PSS and consumption patterns Sustainable PSS and social innovations Sustainable PSS and aesthetics Sustainable PSS and distributed economies Sustainable PSS and social enterprises Sustainable PSS and socio-technical transitions Sustainable PSS and the sufficiency economy: combining efficiency with sufficiencyThis book is the outcome of the LeNS, the Learning Network on Sustainability, a project funded by the Asia Link Programme, EuropAid, European Commission, for curricula development and teaching diffusion in worldwide design Higher Education Institutions. It is a hugely important teaching resource for undergraduate, graduate and PhD design students, design teachers and practicing designers worldwide."
This book gathers the best articles presented by researchers and industrial experts at the International Conference on "Innovative Design and Development Practices in Aerospace and Automotive Engineering (I-DAD 2018)". The papers discuss new design concepts, analysis and manufacturing technologies, with an emphasis on achieving improved performance by downsizing; improving the weight-to-strength ratio, fuel efficiency, and operational capability at room and elevated temperatures; reducing wear and tear; and addressing NVH aspects, while balancing the challenges of Euro IV/Barat Stage IV emission norms and beyond, greenhouse effects, and recyclable materials. The innovative methods discussed here offer valuable reference material for educational and research organizations, as well as industry, encouraging them to pursue challenging projects of mutual interest.
Manufacturing industry has been one of the key drivers for recent rapid global economic development. Globalisation of manufacturing industries due to distributed design and labour advantage leads to a drive and thirst for technological advancements and expertise in the fields of advanced design and manufacturing. This development results in many economical benefits to and improvement of quality of life for many people all over the world. This rapid development also creates many opportunities and challenges for both industrialists and academics, as the design requirements and constraints have completely changed in this global design and manufacture environment. Consequently the way to design, manufacture and realise products have changed as well. More and more design and manufacture tasks can now be undertaken within computer environment using simulation and virtual reality technologies. These technological advancements hence support more advanced product development and manufacturing operations in such a global design and manufacturing environment. In this global context and scenario, both industry and the academia have an urgent need to equip themselves with the latest knowledge, technology and methods developed for engineering design and manufacture.
This book offers a collection of original peer-reviewed contributions presented at the 6th International Congress on Design and Modeling of Mechanical Systems (CMSM'2015), held in Hammamet, Tunisia, from the 23rd to the 25th of March 2015. It reports on both recent research findings and innovative industrial applications in the fields of mechatronics and robotics, dynamics of mechanical systems, fluid structure interaction and vibroacoustics, modeling and analysis of materials and structures, and design and manufacturing of mechanical systems. Since its first edition in 2005, the CMSM Congress has been held every two years with the aim of bringing together specialists from universities and industry to present the state-of-the-art in research and applications, discuss the most recent findings and exchange and develop expertise in the field of design and modeling of mechanical systems. The CMSM Congress is jointly organized by three Tunisian research laboratories: the Mechanical Engineering Laboratory of the National Engineering School of Monastir; the Mechanical Laboratory of Sousse, part of the National Engineering School of Sousse; and the Mechanical, Modeling and Manufacturing Laboratory at the National Engineering School of Sfax.
Software has become a decisive cost and time factor in regard to developing and establishing manufacturing systems and setting them into operation. In addition, software determines the availability, reliability as well as functionality of manufacturing units. Software Engineering for Manufacturing Systems considers the methods and procedures required to deal with problems in the software engineering of control technology for manufacturing systems. Significantly, the following topics are addressed: * definitions and requirements of software for control technology * system design, describing forms of control software * CASE tools for the generation of a code * configuration, adaption of standard software variants, and re-usability of software * and man-machine interface. It contains the selected proceedings of the International Conference on Software Engineering and Case Tools for Control Technology of Manufacturing Systems, sponsored by the IFIP and held in Germany, in March 1996.
In order to select an optimal structure among possible similar
structures, one needs to compare the elastic behavior of the
structures. A new criterion that describes elastic behavior is the
rate of change of deformation. Using this criterion, the safe
dimensions of a structure that are required by the stress
distributed in a structure can be calculated. The new non-linear
theory of elasticity allows one to determine the actual individual
limit of elasticity/failure of a structure using a simple
non-destructive method of measurement of deformation on the model
of a structure while presently it can be done only with a
destructive test for each structure. For building and explaining
the theory, a new logical structure was introduced as the basis of
the theory. One of the important physical implications of this
logic is that it describes mathematically the universal domain of
the possible stable physical relations.
This volume provides production and mechanical engineers with a wide-ranging account of the techniques of machining that have been developed to deal with new materials. These include polymers, hard metals and ceramics, which are difficult to treat by conventional methods either because of the hardness of components or the high accuracies of machining required. Each chapter includes a discussion of the basic working principles, the removal rates and surface characteristics attainable, and typical industrial applications and machines that are available. Electron, ion beam, electrochemical and laser machining are described in detail. The erosive effects of sparks giving rise to accurately controlled metal removal or electrodischarge machining in which a liquid dielectric such as light oil is the working fluid is next described. Machining by use of plasma arcs, the medium here being an ionised gas, is then discussed. Two non-conventional mechanical methods of machining, involving ultrasonics and water jets, are also explained. Chapter ten of the book describes a range of mainly chemical methods of machining, many of which are the basis for the nano-machining technology needed for the latest generations of computers.
Designing is one of the foundations for change in our society. It is a fundamental precursor to manufacturing, fabrication and construction. Design research aims to develop an understanding of designing and to produce models of designing that can be used to aid designing. The papers in this volume are from the Sixth International Conference on Artificial Intelligence in Design (AID'00) held in June 2000, in Worcester, Massachusetts, USA. They represent the state of the art and the cutting edge of research and development in this field, and demonstrate both the depth and breadth of the artificial intelligence paradigm in design. They point the way for the development of advanced computer-based tools to aid designers, and describe advances in both theory and application. This volume will be of particular interest to researchers, developers, and users of advanced computer systems in design.
Reconstructing Medical Practice examines how doctors see health care and their place in it, why they remain in medicine and why they are limited in their ability to lead change in the current system. Doctors are beset by doubts and feel rejected by systems where they should be leaders - some see their role as 'flog[ging] a derelict system to get the last breath of workability out ... for their patients'. Others simply turn away. Rigorous studies carried out at large public teaching hospitals in Australia found that doctors were reluctant to increase safety in the wider health system, despite making every effort for their 'own' patients. Doctors' self-esteem was found to be delicate due to the uncertain nature of their work; colleagues provide the support doctors need to deliver good care. However, these essential relationships and their cherished connections with patients have disadvantages: reducing doctors' ability to admit to error. On top of this, senior doctors predict a future bereft of professional values - one where medicine is 'just a job'. While the loss of professional identity introduces new risks for patients and doctors, the repercussions of the more self-serving attitudes of younger doctors are unknown. Reconstructing Medical Practice concludes that regulation, despite its recent proliferation, is a clumsy and limited approach to ensuring good care. It presents original and much-needed ideas for ways to rebuild the critical relationship between doctors and the system. By better valuing communicative interactions and workplace relationships, safe and satisfying medical practice can be reconstructed.
A virtual prototype is a major interim step towards the creation of a virtual environment. This book explores the simulation, interaction, concepts and tools of virtual prototypes and environments. It provides a mixture of state-of-the-art, advanced research and industrial papers.
Design is a fundamental creative human activity. This certainly applies to the design of artefacts, the realisation of which has to meet many constraints and ever raising criteria. The world in which we live today, is enormously influenced by the human race. Over the last century, these artefacts have dramatically changed the living conditions of humans. The present wealth in very large parts of the world, depends on it. All the ideas for better and new artefacts brought forward by humans have gone through the minds of designers, who have turned them into feasible concepts and subsequently transformed them into realistic product models. The designers have been, still are, and will remain the leading 'change agents' in the physical world. Manufacturability of artefacts has always played a significant role in design. In pre industrial manufacturing, the blacksmith held the many design and realisation aspects of a product in one hand. The synthesis of the design and manufacturing aspects took, almost implicitly, place in the head of the man. All the knowledge and the skills were stored in one person. Education and training took place along the line of many years of apprenticeship. When the production volumes increased, -'assembling to measure' was no longer tolerated and production efficiency became essential - design, process planning, production planning and fabrication became separated concerns. The designers created their own world, separated from the production world. They argued that restrictions in the freedom of designing would badly influence their creativity in design."
This book contains selected contributions from the 6th CIRP International Seminar on Computer-Aided Tolerancing, which was held on 22-24 March, 1999, at the University of Twente, Enschede, The Netherlands. This volume presents the theory and application of consistent tolerancing. Until recently CADCAM systems did not even address the issue of tolerances and focused purely on nominal geometry. Therefore, CAD data was only of limited use for the downstream processes. The latest generation of CADCAM systems incorporates functionality for tolerance specification. However, the lack of consistency in existing tolerancing standards and everyday tolerancing practice still lead to ill-defined products, excessive manufacturing costs and unexpected failures. Research and improvement of education in tolerancing are hot items today. Global Consistency of Tolerances gives an excellent overview of the recent developments in the field of Computer-Aided Tolerancing, including such topics as tolerance specification; tolerance analysis; tolerance synthesis; tolerance representation; geometric product specification; functional product analysis; statistical tolerancing; education of tolerancing; computational metrology; tolerancing standards; and industrial applications and CAT systems. This book is well suited to users of new generation CADCAM systems who want to use the available tolerancing possibilities properly. It can also be used as a starting point for research activities.
Recent rapid globalisation of manufacturing industries leads to a drive and thirst for rapid advancements in technological development and expertise in the fields of advanced design and manufacturing, especially at their interfaces. This development results in many economical benefits to and improvement of quality of life for many people all over the world. Technically speaking, this rapid development also create many opportunities and challenges for both industrialists and academics, as the design requirements and constraints have completely changed in this global design and manufacture environment. Consequently the way to design, manufacture and realise products have changed as well. The days of designing for a local market and using local suppliers in manufacturing have gone, if enterprises aim to maintain their competitiveness and global expansion leading to further success. In this global context and scenario, both industry and the academia have an urgent need to equip themselves with the latest knowledge, technology and methods developed for engineering design and manufacture. To address this shift in engineering design and manufacture, supported by the European Commission under the Asia Link Programme with a project title FASTAHEAD (A Framework Approach to Strengthening Asian Higher Education in Advanced Design and Manufacture), three key project partners, namely the University of Strathclyde of the United Kingdom, Northwestern Polytechncial University of China, and the Troyes University of Technology of France organised a third international conference.
Process planning determines how a product is to be manufactured and is therefore a key element in the manufacturing process. It plays a major part in determining the cost of components and affects all factory activities, company competitiveness, production planning, production efficiency and product quality. It is a crucial link between design and manufacturing. There are several levels of process planning activities. Early in product engineering and development, process planning is responsible for determining the general method of production. The selected general method of production affects the design constraints. In the last stages of design, the designer has to consider ease of manufacturing in order for it to be economic. The part design data is transferred from engineering to manufacturing and process planners develop the detailed work package for manufacturing a part. Dimensions and tolerances are determined for each stage of processing of the workpiece. Process planning determines the sequence of operations and utilization of machine tools. Cutting tools, fixtures, gauges and other accessory tooling are also specified. Feeds, speeds and other parameters of the metal cutting and forming processes are determined.
This short Introduction into Space Charge E?ects in Semiconductors is designed for teaching the basics to undergraduates and show how space charges are created in semiconductors and what e?ect they have on the el- tric?eldandthe energybanddistributioninsuchmaterials,andconsequently on the current-voltage characteristics in semiconducting devices. Such space charge e?ects were described previously in numerous books, fromtheclassicsofSpenkeandShockleytothemorerecentonesofSeegerand others.Butmanymoredetailedinformationwereonlyavailableintheoriginal literatureandsomeofthemnotatall.Itseemstobeimportanttocollectallin a comprehensive Text that can be presented to students in Physics, Electrical Engineering, and Material Science to create the fundamental knowledge that is now essential for further development of more sophisticated semiconductor devices and solar cells. This book will go through every aspect of space charge e?ects and - scribe them from simple elementaries to the basics of semiconductor devices, systematically and in progressing detail. For simplicity we have chosen this description for a one-dimensional se- conductorthatpermitsasimpledemonstrationoftheresultsgraphicallywi- out requiring sometimes confusing perspective rendering. In order to clarify the principles involved, the book starts with a hy- thetical model, by assuming simple space charge distributions and deriving their e?ects on ?eld and potential distributions, using the Poisson equation. Itemphasizestheimportantsignrelationsoftheinterreactingvariables,space charge, ?eld, and potential (band edges). It then expands into simple semiconductor models that contain an abrupt nn-junction and gives an example of important space chargelimited currents, + as observed in nn -junctions. |
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