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Books > Professional & Technical > Technology: general issues > Technical design > General
In order to compete in the current commercial environment companies must produce greater product variety, at lower cost, all within a reduced product life cycle. To achieve this, a concurrent engineering philosophy is often adopted. In many cases the main realization of this is Design for Manufacture and Assembly (DFM/A). There is a need for in-depth study of the architectures for DFM/A systems in order that the latest software and knowledge-based techniques may be used to deliver the DFM/A systems of tomorrow. This architecture must be based upon complete understanding of the issues involved in integrating the design and manufacturing domains. This book provides a comprehensive view of the capabilities of advanced DFM/A systems based on a common architecture.
Both academia and the real world are showing a vastly increased interest in international logistics. Although this book covers the entire topic, it may not contain sufficient detail to answer all questions. The topic-and the challenge is much larger than any single book can cover! A number of people helped us, and their assistance should be recognized. They include Robert L. Argentieri, Eunice Coleman, Patricia J. Daugherty, Robert Derbin, Robert Hannus, Ken Knox, Douglas Long, Eugene L. Magad, Dale S. Rogers, Robert Rouse, John Silvey, and Clyde Kenneth Walter. This book is designed for both the business world and the classroom. A separate Instructor's Manual has been prepared and may be requested on school letterhead from Chapman & Hall. International Logistics 1 Introduction This book is about international logistics and the international logistics system. International means that it will deal with transactions involving indi viduals or firms in more than one nation. Logistics means the organized movement of goods, ser vices, and, sometimes, people. Logistics was originally a military term. For exam ple, in author Tom Clancy's novel, Red Storm Rising, Russian General Alekseyev thought to himself about a battlefield situation: "The tactics ... no, amateurs dis cuss tactics. Professional soldiers study logistics. ,,1 When one speaks of the intema tionallogistics system, he means that huge array of carriers, forwarders, bankers, traders, and so on that facilitate international transactions, trades, and movements of goods and services. Communications are important, and a logistics system in cludes whatever communication capability it needs.
Plate structures are used in almost every area of engineering, including aerospace and naval architecture, civil engineering, and electronics. These structures have diverse geometries and have to withstand a wide range of loading conditions. This book provides the theoretical foundations of the theories of plates manufactured from various materials, outlines and illustrates the methods used for the analysis of these structures, and emphasizes designs and solution techniques available to an engineer. The book is written for engineers working in industry, graduate students at aerospace, mechanical, civil engineering and naval architecture departments, and investigators interested in the development of the theory of plates and related subjects. While the mathematical modeling employed in the book is understandable to both engineers and graduate students, the book also provides insight into relevant phenomena and theories underlying plate structures. Thus, the reader is equipped with a thorough understanding of the problems and appropriate assumptions, even if the analysis is conducted using commercially available software codes. In addition, the book includes numerous analytical solutions that can confidently be used in the design of plate structures. The combination of theoretical insight and references to practical problems makes the book equally attractive to academia and industry.
Dealing with environmental issues should no longer be considered simply as a cost of doing business. Effective environmental improvements to a company's products and services can be turned into business opportunities. This book was written with the express purpose of helping managers of companies, in particular of Small to Medium sized Enterprises (SMEs), to better deal with environmental challenges and address customer requirements, all in order to turn their environmental inve- ments into competitive market advantages. Several examples are provided throughout the book, but also warning signs (Alert Boxes). These "Alerts" are posted to help managers avoid typical traps when working with environmental considerations in business processes. The authors have many years of experience in the various aspects of impleme- ing Ecodesign. This experience includes working in industry for many years; le- ing the environmental departments in a multinational company; managing research projects in eco-product development; Life Cycle Assessment; and national and international environmental communication and marketing. This book is the latest in a series. The 2002 "Ecodesign Pilot" introduced a tool and software to help design more environmentally compatible products. It was directed specifically at designers. The 2004 book, "Ecodesign Implementation," was written to help project managers optimize product development processes from an environmental perspective.
We describe in this book, bio-inspired models and applications of hybrid intel- gent systems using soft computing techniques for image analysis and pattern r- ognition based on biometrics and other information sources. Soft Computing (SC) consists of several intelligent computing paradigms, including fuzzy logic, neural networks, and bio-inspired optimization algorithms, which can be used to produce powerful hybrid intelligent systems. The book is organized in five main parts, which contain a group of papers around a similar subject. The first part consists of papers with the main theme of classification methods and applications, which are basically papers that propose new models for classification to solve general pr- lems and applications. The second part contains papers with the main theme of modular neural networks in pattern recognition, which are basically papers using bio-inspired techniques, like modular neural networks, for achieving pattern r- ognition based on biometric measures. The third part contains papers with the theme of bio-inspired optimization methods and applications to diverse problems. The fourth part contains papers that deal with general theory and algorithms of bio-inspired methods, like neural networks and evolutionary algorithms. The fifth part contains papers on computer vision applications of soft computing methods. In the part of classification methods and applications there are 5 papers that - scribe different contributions on fuzzy logic and bio-inspired models with appli- tion in classification for medical images and other data.
The current marketplace is undergoing an accelerated pace of change that challenges corporations to innovate new techniques to respond rapidly to an ever-changing environment. At the center of this changing environment is a new generation of empowered buyers (customers) equipped with fast evolving technologies that allow them to buy from markets scattered across the globe. Empowering the customers has deprived organizations of what was once their right-to introduce new products slowly, at their own leisure. Organizations used to introduce new products every few years, and, for the most part, products offered limited functionalities and features. A low-priced quality product-irrespective of customer satisfaction-was a guaranteed ticket for success. New global economies and global markets changed business practices and focused on the customer as the major player in the economy. Organizations now fail or succeed based upon their ability to respond quickly to changing customer demands and to utilize new technological innovations. In such an environment, the advantage goes to the firm that can offer greater varieties of new products with higher performance and greater overall appeal. In order to compete in this fast-paced global market, organizations need to produce products that can be easily configured to offer distinctive capabilities compared to the competition. Furthermore, organizations need to develop new methods and techniques to react rapidly to required changes in products and market trends and to shorten the product development cycle, which will enable them to gain more economic competitiveness.
The importance of proper geometric dimensioning and tolerancing as a means of expressing the designer's functional intent and controlling the inevitable geometric and dimensional variations of mechanical parts and assemblies, is becoming well recognized. The research efforts and innovations in the field of tolerancing design, the development of supporting tools, techniques and algorithms, and the significant advances in computing software and hardware all have contributed to its recognition as a viable area of serious scholarly contributions. The field of tolerancing design is successfully making the transition to maturity where deeper insights and sound theories are being developed to offer explanations, and reliable implementations are introduced to provide solutions. Machine designers realized very early that manufacturing processes do not produce the nominal dimensions of designed parts. The notion of associating a lower and an upper limit, referred to as tolerances, with each dimen sion was introduced. Tolerances were specified to ensure the proper function of mating features. Fits of mating features included clearances, location fits, and interference fits, with various sub-grades in each category assigned a tolerance value depending on the nominal size of the mating features. During the inspection process, a part is rejected if a dimension fell outside the specified range. As the accuracy requirements in assemblies became tighter, designers had to consider other critical dimensions and allocate tolerances to them in order to ensure the assembly's functionality.
The need exists in the private sector and government manufacturing sites to reduce product development time, production lead times, inventory, and non-value added activities. At the same time, there is increased pressure to improve manufacturing process yields, produc tion efficiency, and resource utilization. Much of the technology required to meet these needs already exists, but an integrated structure that can demonstrate the potential for the technology in a concurrent engineering context does not. This book provides a road map for building the integrated technology environment to evaluate existing products, manufacturing processes and system design tools. This book details innovative approaches that will significantly improve design/manufacturing technology development and deploy ment capabilities for civilian and defense applications. These approaches are integrated product, process, and system design (IPPSD) initiatives which will greatly enhance the manufacturing competitiveness of the economy. These approaches involve the use of simulation, modeling tools and computerized virtual workstations in conjunction with a design environment which allows a diverse group of researchers, manufacturers, and suppliers to work within a comprehensive network of shared knowledge. The IPPSD infrastructure consists of virtual workstations, servers and a suite of simulation, quantitative, computa tional, analytical, experimental and qualitative tools. Such an IPPSD infrastructure will permit effective and efficient predictions of complete product design, manufacturing proces design, and customer satisfac tion.
This practical yet rigorous book provides a development of nonlinear, Lyapunov-based tools and their use in the solution of control-theoretic problems. Rich in motivating examples and new design techniques, the text balances theoretical foundations and real-world implementation.
This book is concerned with Intelligent Control methods and applications. The field of intelligent control has been expanded very much during the recent years and a solid body of theoretical and practical results are now available. These results have been obtained through the synergetic fusion of concepts and techniques from a variety of fields such as automatic control, systems science, computer science, neurophysiology and operational research. Intelligent control systems have to perform anthropomorphic tasks fully autonomously or interactively with the human under known or unknown and uncertain environmental conditions. Therefore the basic components of any intelligent control system include cognition, perception, learning, sensing, planning, numeric and symbolic processing, fault detection/repair, reaction, and control action. These components must be linked in a systematic, synergetic and efficient way. Predecessors of intelligent control are adaptive control, self-organizing control, and learning control which are well documented in the literature. Typical application examples of intelligent controls are intelligent robotic systems, intelligent manufacturing systems, intelligent medical systems, and intelligent space teleoperators. Intelligent controllers must employ both quantitative and qualitative information and must be able to cope with severe temporal and spatial variations, in addition to the fundamental task of achieving the desired transient and steady-state performance. Of course the level of intelligence required in each particular application is a matter of discussion between the designers and users. The current literature on intelligent control is increasing, but the information is still available in a sparse and disorganized way.
In this volume the investigations of filtering problems, a start on which has been made in 55], are being continued and are devoted to theoretical problems of processing stochastic fields. The derivation of the theory of processing stochastic fields is similar to that of the theory extensively developed for stochastic processes ('stochastic fields with a one-dimensional domain'). Nevertheless there exist essential distinctions between these cases making a construction of the theory for the multi-dimensional case in such a way difficult. Among these are the absence of the notion of the 'past-future' in the case of fields, which plays a fundamental role in constructing stochastic processes theory. So attempts to introduce naturally the notion of the causality (non-anticipativity) when synthesising stable filters designed for processing fields have not met with success. Mathematically, principal distinctions between multi-dimensional and one-dimensional cases imply that the set of roots of a multi-variable polyno mial does not necessary consist of a finite number of isolated points. From the main theorem of algebra it follows that in the one-dimensional case every poly nomial of degree n has just n roots (considering their multiplicity) in the com plex plane. As a consequence, in particular, an arbitrary rational function cents(."
Advances in Structural Optimization presents the techniques for a wide set of applications, ranging from the problems of size and shape optimization (historically the first to be studied) to topology and material optimization. Structural models are considered that use both discrete and finite elements. Structural materials can be classical or new. Emerging methods are also addressed, such as automatic differentiation, intelligent structures optimization, integration of structural optimization in concurrent engineering environments, and multidisciplinary optimization. For researchers and designers in industries such as aerospace, automotive, mechanical, civil, nuclear, naval and offshore. A reference book for advanced undergraduate or graduate courses on structural optimization and optimum design.
Environmental Design is becoming an increasingly significant agenda for many manufacturing companies and yet there is no standard to their approaches, strategies or their levels of execution. Applying Design for Environment (DfE) methodologies to develop a more sustainable supply chain has formed procedures and techniques which allow designers to integrate these methods with environmental supply chain management. Design for Environment as a Tool for the Development of a Sustainable Supply Chain aims to define relevant target specifications for a product throughout its life cycle; from conception and design to the end of its operating life. Be considering this new approach to the supply chain, environmental responsiveness can work in tandem with sounds business management. The usual focus on suppliers, manufacturers and customers is expanded in Design for Environment as a Tool for the Development of a Sustainable Supply Chain to include stakeholders such as government bodies and recycling companies. The influence of these additional groups is analyzed alongside concepts such as: Product life cycle development aimed at environmental impact minimization; Supplier selection and management based on environmental criteria; and Marketing and communication choices which increase the value of environmentally sensitive products. By including several case studies alongside theoretical topics, Design for Environment as a Tool for the Development of a Sustainable Supply Chains acts as a foundation for professionals across the supply chain, from industrial designers to marketing and sales departments, who are involved in environmental issues.
Darwin2K: An Evolutionary Approach to Automated Design for Robotics is an essential reference tool for researchers, professionals, and students involved in robot design or in evolutionary synthesis, design, and optimization. It is also necessary for users of Darwin2K. Researchers and hobbyists interested in genetic algorithms and artificial life techniques will find the book interesting. The primary purpose of this book is to describe a methodology for using computers to automatically design robots to meet the specific needs of an application. Details of many novel aspects of the methodology are presented, including an evolutionary algorithm for synthesizing and optimizing multiple objective functions, an algorithm for dynamic simulation of arbitrary robots, an extensible software architecture, and a new representation for robots that is appropriate for robot design. The methodology as a whole is significant in terms of its impact on robot design practices, and as a case study in building evolutionary design systems. Individual parts of the systems are also relevant to other areas. For example, the evolutionary algorithm can be used for design and optimization problems other than robotics, and the dynamic simulation algorithm can be used for analysis and simulation of existing robots or as a part of a manual design tool. The book also gives an overview of previous work in automated design of robots, and of evolutionary design in other engineering disciplines.
Crandall's Power Supply Testing Handbook comes into the marketplace at an optimum time. Now, more than ever, there is an urgency for a comprehensive handbook on power supply testing that will fulfill the reference needs of the wide variety of professionals testing power supplies, including designers, manufacturers, purchasers, and field service organizations.
Designing inclusively is no longer an option for companies. It is a business essential. Global populations are getting older, legislation is increasingly prohibitive of unnecessary exclusion and consumer attitudes are beginning to change. Exclusivity is out, inclusivity is in. Research communities the world over are responding to this change in design emphasis. Conferences such as the Cambridge Workshops on Universal Access and Assistive Technology (CWUAAT) offer a forum for researchers from diverse and varied disciplines to bring their perspectives on inclusive design together. This book has been inspired by the second CWUAAT, held in Cambridge, England in March 2004. It contains chapters from an international group of leading researchers in this field. Contributions focus on the following topics: design issues for universal access and assistive technology; enabling computer access and new technologies; and, assistive technology and rehabilitation robotics. This series of conferences is aimed at a broad range of interests, with a general focus on the development of products and solutions. Numerous case studies are used to raise awareness of the challenges faced in developing truly inclusive products, along with examples of good practice for design for a more inclusive world.
This book is a compilation of research accomplishments in the fields of modeling, simulation, and their applications, as presented at AsiaSim 2011 (Asia Simulation Conference 2011). The conference, held in Seoul, Korea, November 16-18, was organized by ASIASIM (Federation of Asian Simulation Societies), KSS (Korea Society for Simulation), CASS (Chinese Association for System Simulation), and JSST (Japan Society for Simulation Technology). AsiaSim 2011 provided a forum for scientists, academicians, and professionals from the Asia-Pacific region and other parts of the world to share their latest exciting research findings in modeling and simulation methodologies, techniques, and their tools and applications in military, communication network, industry, and general engineering problems.
This volume, Temperate Fruits: Production, Processing, and Marketing, presents the latest pomological research on the production, postharvest handling, processing and storage, and information on marketing for a selection of temperate fruits. These include apple, pear, quince, peach, plum, sweet cherry, kiwifruit, strawberry, mulberry, and chestnut. With chapters from fruit experts from different countries of the world, the book provides the latest information on the effect of climate change on fruit production, organic fruit growing and advanced fruit breeding, the nutraceutical value and bioactive compounds in fruits and their role in human health, and new and advanced methods of fruit production. Topics include microirrigation, sustainable nutrient management, crop protection and plant health management, and farm mechanization.
This unique book is the only recent summary presenting a comprehensive, up-to-date and detailed treatment of relay feedback theory, the use of relay feedback for process identification and the use of identified models for general control design in a single volume.
As Directors of this NATO Workshop we welcome this opportunity to record formally our thanks to the NATO Scientific Affairs Division for making our meeting possible through generous financial support and encouragement. This meeting had two purposes: the first obvious one because we have collected key scientists from East and West together to discuss the latest developments in the design against fatigue for structures and components. The second is less obvious but perhaps in the longer term more important; that is the building of bridges between East and West Europe, bridges cemented in the first place by personal friendship between scientists. Fatigue is the process by which structures subjected to cyclical loads deteriorate. The advent of the industrial revolution and in particular the spread of railways caused this phenomena to be recognised and studied some 150 years ago. Despite intensive efforts over the years and despite a huge increase in our theoretical and practical understanding offatigue, failures still occur causing economic disruption and even loss of life. Some of the reasons lying behind this apparent failure to apply advanced knowledge to everyday engineering were explored during this Workshop. Economic pressures to extend the lives of existing plant are becoming more intense. Therefore of vital importance is the generation of knowledge used to assess the performance of existing structures and machines and to produce guidance on their continued safe operation.
Machines will gradually become programmed using computers which have the knowledge of how the objects in the world relate to one another. This book capitalizes on the fact that products which are manufactured can be designed on the computer and that information about the product such as its physical shape provide powerful information to reason about how to develop the process plan for their manufacture. This book explores the whole aspect of using the principles of how parts behave naturally to automatically generate programs that govern how to produce them. The last decade saw tremendous work on how machines can be programmed to perform a variety of tasks automatically. Robotics has witnessed the most work on programming techniques. But it was not until the emergence of the advanced CAD system as a proper source of information representation about objects which are to be manipulated by the robot that it became viable for automated processors to generate robot programs without human interface. It became possible for objects to be described and for principles about how they interact in the world to be developed. The functions which the features designed into the objects serve for the objects can be adequately represented and used in reasoning about the manufacturing of the parts using the robot. This book describes the necessary principles which must be developed for a robot to generate its own programs with the knowledge of the world in the CAD system.
This book is devoted to the optimization of product design and manufacturing systems. It contains selected and carefully composed articles based on presentations given at the IDMME conference held in Nantes, France in 1996. The authors are all involved in cutting-edge research in their respective fields of specialization. The integration of manufacturing constraints and their optimization in the design process is becoming more and more widespread in the development of mechanical products or systems. There is a clear industrial need for these kind of methodologies. Important - but still unsolved - problems are related to the definition of design processes, the choice of optimal manufacturing processes and their integration through coherent methodologies in adapted environments. The main topics addressed in this book are: the optimization and evaluation of the product design process (design methodology, representation and integration of design constraints, design for manufacturing, synthesis of objects with constraints, automatic modelling) the optimization and evaluation of the manufacturing systems (modelling of machining processes, modelling for control and measuring, feature-based manufacturing, CAM and off-line programming) some methodological aspects (computational geometry, simultaneous and concurrent engineering, integrated design and CAD/CAM systems, object modelling, feature-based modelling, design and communication, automatic solvers and optimizers) . Apart from giving a thorough theoretical background, a very important theme is the relation between research and industrial applications. The book is of interest for engineers, researchers and PhD students who are involved in the optimization of design and manufacturing processes.
This volume originates from two workshops, both focusing on themes that are reflected in the title of the volume. The first workshop took place at Eindhoven University of Technology, April 24-26, 2001, on the occasion of the University granting a doctorate honoris causa to Profes sor John A. Buzacott. The second workshop was held on June 15, 2002 at Cornell University (preceding the annual INFORMSjMSOM Confer ence), honoring John's retirement and his lifetime contributions. Each of the two workshops consisted of about a dozen technical presentations. The objective of the volume, however, is not to simply publish the proceedings of the two workshops. Rather, our objective is to put to gether a select set of articles, each organized into a well-written chapter, focusing on a timely topic. Collected into a single volume, these chapters aim to serve as a useful reference for researchers and practitioners alike, and also as reading materials for graduate courses or seminars.
This essential book documents the latest research progress and key issues affecting SSM software development. With a particular focus on the CAD/CAM environment, it provides a rich source of reference and covers a wide range of topics.
With collaborative product development in a geographically distributed environment and global outsourcing becoming normal for many companies, it is imperative to bring academics, researchers and industrialists together to share research ideas and best practice. The European-Asia Symposium on Engineering Design and Manufacture (EASED 2004) provides such a platform and aims to increase the exchange of ideas and best practice among practitioners and researchers from two major global regions - Europe and Asia. As the manufacturing activities, associated with the design activities in European, American and Japan, are being transferred to Asia, it is timely to organise this International Symposium. The Symposium brings together research experts and industrialists to focus on the issues related to these global changes. This geographical distribution of tasks involved in the whole engineering product realisation process brings great challenge as well as huge benefits. This Symposium provides a platform for academic researchers and industrial practitioners to exchange ideas used to address the challenges presented by this new global economic development. This book presents 75 papers from 185 accepted refereed papers presented at EASED2004. |
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