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Books > Professional & Technical > Mechanical engineering & materials > Production engineering > Industrial quality control
As quality becomes an increasingly essential factor for achieving business success, building quality improvement into all stages-product planning, product design, and process design-instead of just manufacturing has also become essential. Quality Engineering: Off-Line Methods and Applications explores how to use quality engineering methods and other modern techniques to ensure design optimization at every stage. The book takes a broad approach, focusing on the user's perspective and building a well-structured framework for the study and implementation of quality engineering. Starting with the basics, this book presents an overall picture of quality engineering. The author delineates quality engineering methods such as DOE, Taguchi, and RSM as well as computational intelligence approaches. He discusses how to use a general computational intelligence approach to improve product quality and process performance. He also provides extensive examples and case studies, numerous exercises, and a glossary of basic terms. By adopting quality engineering, the defect rate during manufacturing shows noticeable improvement, the production cost is significantly lower, and the quality and reliability of products can be enhanced. Taking an integrated approach that makes the methods of upstream quality improvement accessible, without extensive mathematical treatments, this book is both a practical reference and an excellent textbook.
The NA TO Advanced Study Institute is, to quote the Notes for Applicants "primarily a high level teaching activity at which a carefully defined subject is presented in a systematic and coherently structured programme. The subject is treated in considerable depth by eminent lecturers . . . . **. . . " The NATO ASI on Generic Techniques in Systems Reliability Assessment was held at the University of Liverpool and the Proceedings are presented in the present volume. Regrettably many of the papers are in shortened version. This was an inter disciplinary assembly designed to focus on the synthesis of generic reliability concepts and technology and to discuss relevant teaching and research in universities and colleges. One important objective was, of course, to give opportunity for interchange of information on advanced techniques in reliability in various fields. The Institute was held in Dale Hall, one of the halls of residence of the University of Liverpool, England, from 17th to 28th July, 1973. Sixty-four engineers from twelve countries attended, namely, 27 from U. K. , 14 from U. S. A. 8 from Italy, 4 from West Germany, 2 from France, 2 from the Netherlands, 2 from Sweden each from Belgium, Canada, Denmark, India and Norway. and one Seven of these had their wives and some brought their children also. The technical affiliations which were represented were 23 universities, 22 national laboratories, 11 industry, 5 military, 3 consultants.
Game Theoretic Risk Analysis of Security Threats introduces reliability and risk analysis in the face of threats by intelligent agents. More specifically, game-theoretic models are developed for identifying optimal and/or equilibrium defense and attack strategies in systems of varying degrees of complexity. The book covers applications to networks, including problems in both telecommunications and transportation. However, the book s primary focus is to integrate game theory and reliability methodologies into a set of techniques to predict, detect, diminish, and stop intentional attacks at targets that vary in complexity. In this book, Bier and Azaiez highlight work by researchers who combine reliability and risk analysis with game theory methods to create a set of functional tools that can be used to offset intentional, intelligent threats (including the threats of terrorism and war). A comprehensive treatment of such problems must consider two aspects: (1) the structure of the system to be protected; and (2) the adaptive nature of the threat). The book provides a set of tools for applying game theory TO reliability problems in the presence of intentional, intelligent threats. These tools will help to address problems of global security and also facilitate more cost-effective defensive investments. "
This book discusses statistical process control (SPC) concepts, emphasizing the need to establish stability of work processes. It gives the elements required to develop a defect prevention system (DPS), and integrates the application of process control and problem analysis tools.
Dieses Buch bietet eine praxisorientierte Einfuhrung in die industrielle Bildverarbeitung. Das Buch liegt nun in einer uberarbeiteten 3. Auflage vor, die die aktuellen technologischen Entwicklungen zum Beispiel im Bereich Kameratechnik und Farbbildverarbeitung berucksichtigt. Der Schwerpunkt liegt dabei auf dem Zusammenwirken von Verfahren in einem bildverarbeitenden Gesamtsystem einschliesslich der typischen Problemstellungen bei der Integration in die automatisierte Fertigung. Anhand von realen Beispielen und der Standard-Software NeuroCheck wird eine Anleitung zur Loesung industrieller Sichtprufaufgaben gegeben. Basierend auf ihrer langjahrigen Erfahrung legen die Autoren auch diejenigen Rezepte offen, die zwar ublicherweise nicht publiziert werden, fur das Funktionieren von Bildverarbeitungssystemen jedoch wesentlich sind. Mit der als Download verfugbaren Testversion der Software kann das Gelesene nachvollzogen und eingeubt werden.
Die Magnetpulverprufung ist ein zerstoerungsfreies Verfahren zur Prufung von metallischen und nichtmetallischen Werkstoffen auf Oberflachenfehler. Das Buch behandelt die physikalischen und die verfahrensspezifischen Grundlagen, die Magnetisierung und Entmagnetisierung, Prufmittel, die Prufsystem- und Verfahrenskontrollen, die Gerate-, Pruf- und Auswertetechniken der Magnetpulverprufung, die Unganzen im Fertigungsprozess und bei der Betriebsbeanspruchung sowie die Durchfuhrung von Magnetpulverprufungen. Weitere Themen sind die Klassifizierung und Beurteilung von Anzeigen, die Grenzen des Prufverfahrens sowie den einschlagigen Arbeits- und Umweltschutz. Das Buch vermittelt dem Werkstoffprufer das erforderliche Rustzeug fur seine praktische Tatigkeit einschliesslich der dabei zu beachtenden wichtigsten Normen und Regelwerke. Es eignet sich ebenso zur Ausbildung in der Werkstoffprufung sowohl in Hochschulen, Firmen oder Werkstoffinstituten. Der Autor Prof. Dr.-Ing. Karlheinz Schiebold ist ein ausgewiesener Spezialist auf dem Gebiet der zerstoerungsfreien Materialprufung mit langjahriger Erfahrung in Prufpraxis und Ausbildung.
Cradle-to-grave analyses are becoming the norm, as an increasing amount of corporations and government agencies are basing their procurement decisions not only on initial costs but also on life cycle costs. And while life cycle costing has been covered in journals and conference proceedings, few, if any, books have gathered this information into an easily accessible resource. Eliminating the need to consult many different sources, Life Cycle Costing for Engineers brings together up-to-date life cycle costing concepts and explains their application in various industrial sectors. The author sets the scene with a chapter on fundamental economics followed by a chapter on reliability and maintainability, providing background information and platform for further understanding. He then discusses life cycle costing fundamentals, models and estimation methods, reliability, quality, safety, and manufacturing costing, and maintenance, maintainability, usability, and warranty costing. The book includes life cycle costing for computer systems and software, transportation systems, aircraft turbine engines, cargo ships, rail systems, civil engineering structures, and energy systems. An in-depth look at cost estimation models and engineering reliability and maintainability topics such as bathtub hazard rate curve, common reliability networks, general reliability, mean time to failure, and hazard rate formulas round out the coverage. Filled with examples, tables, figures, and equations, this book integrates life cycle costing concepts for use in industrial and other sectors. It provides a modern treatment of the subject that can easily be applied to any industry.
Risse in Bauteilen begrenzen die Nutzungs- und die Lebensdauer von Bauteilen. Der Autor vermittelt, wie diese Grenzen zu erkennen sind, und wie das Rissverhalten zu bewerten ist. Bei der Dimensionierung von Bauteilen und beim Nachweis ihrer Haltbarkeit auf der Grundlage der Festigkeitslehre wird das Vorhandensein rissartiger Schadigungen ublicherweise nicht durch geminderte zulassigen Spannungen berucksichtigt. Im praktischen Betrieb werden rissgeschadigte Bauteile durch zerstoerungsfreie Prufungen uberwacht. Aus eigener praktischer Tatigkeit bei der Untersuchung von Schadensfallen sowie zu deren Vermeidung stellt der Autor Erfahrungen zusammen, die den Leser zur Beurteilung von Schadensfallen befahigen und ihm ermoeglichen, kompetent Auskunft geben oder Massnahmen veranlassen zu koennen.
A comprehensive presentation of control theory for the SPC community Quality control has become a major concern in today’s competitive industrial environment, and industrial engineers are constantly seeking to make process adjustments that will optimize production efficiency and improve product quality. Statistical Process Adjustment for Quality Control fills the need for a comprehensive presentation of control theory at the elementary level, focusing on statistical methods used in process adjustment (Engineering Process Control Methods or EPC) and their relation to the classical methods of process monitoring, particularly those using SPC control charts. The author presents the severe effects of autocorrelated data on control chart performance and advocates the use of active adjustment methods for improving the quality of products and processes. He uses a detailed explanation of Deming’s funnel experiment to illustrate the need for process adjustment when there are process dynamics, and presents an in-depth description of ARIMA models and Transfer Function models from a statistical point of view. He offers several adjustment strategies, including Minimum Variance Controllers, PID controllers, EWMA controllers, deadband policies, and constrained variance controllers. The book also offers integration strategies for SPC and EPC methods, discusses multivariate ARMAX models used for multivariate adjustment, and provides readers with a brief introduction to frequency domain and state-space methods. Statistical Process Adjustment for Quality Control is a timely resource for students, industrial engineers, and applied statisticians in both academic and industrial settings. Unique features include:
In dem Band erlautern die Autoren die Umsetzung der systematischen Konzeptentwicklung und die Gestaltung technischer Produkte. Aufbauend auf den Grundlagen der systematischen Problemloesung und der methodischen Produktentwicklung stellen sie Ansatze vor, die eine Handhabung der Komplexitat von Produkt und Prozess ermoeglichen. Die Erlauterung des Munchener Produktkonkretisierungsmodell wurde fur die 2. Auflage grundlich uberarbeitetet. Zudem wird der Umgang mit unterschiedlichen Hauptzielsetzungen wie Zuverlassigkeit oder Nachhaltigkeit demonstriert.
The definitive guide to the latest tools & techniques for achieving performance excellence in manufacturing, distribution, and planning Now completely revised and expanded, World Class Production and Inventory Management presents the latest information on the unique tools and techniques needed to manage the planning and production of a manufacturing enterprise. Including a completely new chapter on Efficient Consumer Response (ECR), updated case studies, and additional information on manufacturing integration, this comprehensive reference includes:
Signifikante Potenziale zur Optimierung der Produktqualitat und Effizienz koennen bei etablierten Fertigungsverfahren nur erkannt werden, wenn der gesamte Herstellungsprozess sowohl unter technologischen als auch unter logistischen Gesichtspunkten untersucht wird. Um nachhaltige Erfolge zu erzielen mussen radikale Veranderungen der Prozesskette, wie beispielsweise der Einsatz von innovativen und wirtschaftlich risikoreichen Fertigungsverfahren oder die vollstandige Umgestaltung der bekannten Prozessketten, in Betracht gezogen werden. Durch prozessubergreifend abgestimmte technologische sowie logistische Massnahmen koennen so bisher unbekannte und ungenutzte Optimierungspotenziale auch bei etablierten und hochgradig optimierten Einzelprozessen gewinnbringend genutzt werden. Vor diesem Hintergrund beschaftigt sich das vorliegende Werk mit der Vorstellung und detaillierten Untersuchung der Prozesskette zur Herstellung von prazisionsgeschmiedeten Hochleistungsbauteilen, sowohl unter technologischen als auch logistischen Aspekten. Fur die Einzelprozesse der Prozesskette wird der aktuelle Stand der Forschung und Technik beschrieben und darauf aufbauend eine prozessubergreifende Technologieentwicklung vorgestellt.
Technische Produkte benotigen zuverlassige Software, fur die hohe Qualitatsmassstabe gelten. Fur eingebettete Software ist die Beherrschung qualitatssichernder Entwicklungsprozesse notwendig, um einen bestandigen wirtschaftlichen Erfolg zu erreichen. Dabei mussen im gesamten Entwicklungszyklus Fehler vermieden werden, eine fruhzeitige Fehlererkennung und - beseitigung ist sicherzustellen. Hier werden speziell dafur entwickelte Methoden zur Qualitatssicherung vorgestellt, strukturiert und bewertet sowie in ein qualitatsorientiertes Vorgehensmodell integriert."
Seeking new technologies for the development of industrial control
has become a major challenge for the control industry. This book
introduces the novel methodologies, architectures and algorithms of
intelligent control systems, and their industrial applications. The
intelligent systems addressed include: neural networks, fuzzy
logic, rule base, and genetic algorithms - each having a strong
industrial application. The main features are:
Die Betriebsfestigkeitsprufung von Bauteilen ist u. a. erforderlich, um ihre Lebensdauer zu berechnen. Dazu werden verschiedene Methoden angewendet, die jeweils Vor- und Nachteile aufweisen. Bei schwingender Beanspruchung ist die Methode der Zahlverfahren geeignet. Sie wird in dem vorliegenden Buch beschrieben und bewertet. Die Autoren bieten einen kompakten Uberblick uber den Stand der Technik und liefern Empfehlungen fur die Anwendung in der Praxis."
In der vorliegenden zweiten Auflage wurde der Methodenteil um die Wertstromanalyse erganzt, die sich zu einem Standardwerkzeug der Analyse und Verbesserung von Prozessen etabliert hat. Neu ist ein Kapitel uber die Verbesserungs-Kata, die als ganzheitliche Verbesserungsmethode zurzeit diskutiert wird, sowie ein Kapitel uber die IT-Unterstutzung von Prozessen, das einen Einblick in gangige Systeme zur Automatisierung von Prozessen gibt. Trotz Bestrebungen zur Kostenreduzierung investieren die meisten Unternehmen in die Optimierung ihrer Arbeitsablaufe und Organisation. Denn wer Prozesse optimal definiert, gestaltet und umsetzt, kann nicht nur Kunden besser zufrieden stellen, sondern hat damit auch die Moeglichkeit, auf den Kosten- und Wettbewerbsdruck mit "schlanken" und wertschoepfenden Prozessen zu reagieren. Ein Unternehmen ohne Prozesse gibt es nicht. Nur wenn die Handlungen einzelner Mitarbeiter entlang einer Ablauf- oder Prozesskette koordiniert werden, kann das Unternehmen erfolgreich agieren. Diese Koordination stellt eine hoch komplexe Aufgabenstellung dar, die Unternehmen effizient loesen mussen. Eine Moeglichkeit besteht darin, ein kontinuierliches Prozessmanagement zu etablieren. Damit Konzepte wie Six Sigma, Kaizen und Total Quality Management effizient angewandt werden koennen, wird ein grundlegendes Verstandnis des Projektmanagements benoetigt. Eine sichere Anwendung dieser Methoden wird immer mehr zu einer Schlusselqualifikation nicht nur fur Studierende und Absolventen, sondern auch fur Berufspraktiker vom "Denken in Funktionen" hin zum "Denken in Prozessen".
Early and accurate fault detection and diagnosis for modern chemical plants can minimise downtime, increase the safety of plant operations, and reduce manufacturing costs. The process monitoring techniques that have been most effective in practice are based on models constructed almost entirely from process data.The goal of the book is to present the theoretical background and practical techniques for data-driven process monitoring. Process monitoring techniques presented include: Data-driven methods - principal component analysis, Fisher discriminant analysis, partial least squares and canonical variate analysis; Analytical Methods - parameter estimation, observer-based methods and parity relations; Knowledge-based methods - causal analysis, expert systems and pattern recognition.The text demonstrates the application of all of the data-driven process monitoring techniques to the Tennessee Eastman plant simulator - demonstrating the strengths and weaknesses of each approach in detail. This aids the reader in selecting the right method for his process application. Plant simulator and homework problems in which students apply the process monitoring techniques to a non-trivial simulated process, and can compare their performance with that obtained in the case studies in the text are included. A number of additional homework problems encourage the reader to implement and obtain a deeper understanding of the techniques. The reader will obtain a background in data-driven techniques for fault detection and diagnosis, including the ability to implement the techniques and to know how to select the right technique for a particular application.
The past decade has witnessed an increasing interest in observers for nonlinear systems. This subject is relevant in different contexts such as synchronization of complex dynamical systems, fault detection and isolation, and output feedback control. This book contains the contributions that are to be presented at the workshop "New Directions in Nonlinear Observer Design", to be held from June 24-26, 1999, in Geiranger Fjord, Norway. The workshop has been organised by Olav Egeland, Thor I. Fossen and Henk Nijmeijer; it will include participants from Africa, Asia, Europe and USA and it will focus on recent developments in the above mentioned areas. The contributions form a good review of present achievements and challenges in nonlinear observer design. The workshop is supported by the Strategic University Program on Marine Cybernetics at the Norwegian University of Science and Technology and ABB.
The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology impacts all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies..., new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. The environmental aspects of all of our society's activities are extremely important if the countryside; the sea and wildernesses are to be fully enjoyed by future generations. Urban waste in all its manifestations presents a particularly difficult disposal problem, which must be tackled conscientiously to prevent long lasting damage to the environment. Technological solutions should be seen as part of the available options. In this monograph, the authors M. R. Katebi, M. A. Johnson and J. Wilkie seek to introduce a comprehensive technological framework to the particular measurement and control problems of wastewater processing plants. Of course the disposal of urban sewage is a long-standing process but past solutions have used options (disposal at sea) which are no longer acceptable. Thus to meet new effluent regulations it is necessary to develop a new technological paradigm based on process control methods, and this is what the authors attempt to provide.
Praise for the "Second Edition" "As a comprehensive statistics reference book for quality
improvement, it certainly is one of the best books
available." This new edition continues to provide the most current, proven statistical methods for quality control and quality improvement The use of quantitative methods offers numerous benefits in the fields of industry and business, both through identifying existing trouble spots and alerting management and technical personnel to potential problems. "Statistical Methods for Quality Improvement, Third Edition" guides readers through a broad range of tools and techniques that make it possible to quickly identify and resolve both current and potential trouble spots within almost any manufacturing or nonmanufacturing process. The book provides detailed coverage of the application of control charts, while also exploring critical topics such as regression, design of experiments, and Taguchi methods. In this new edition, the author continues to explain how to combine the many statistical methods explored in the book in order to optimize quality control and improvement. The book has been thoroughly revised and updated to reflect the latest research and practices in statistical methods and quality control, and new features include: Updated coverage of control charts, with newly added toolsThe latest research on the monitoring of linear profiles and other types of profilesSections on generalized likelihood ratio charts and the effects of parameter estimation on the properties of CUSUM and EWMA proceduresNew discussions on design of experiments that include conditional effects and fraction of design space plotsNew material on Lean Six Sigma and Six Sigma programs and training Incorporating the latest software applications, the author has added coverage on how to use Minitab software to obtain probability limits for attribute charts. new exercises have been added throughout the book, allowing readers to put the latest statistical methods into practice. Updated references are also provided, shedding light on the current literature and providing resources for further study of the topic. "Statistical Methods for Quality Improvement, Third Edition" is an excellent book for courses on quality control and design of experiments at the upper-undergraduate and graduate levels. the book also serves as a valuable reference for practicing statisticians, engineers, and physical scientists interested in statistical quality improvement.
The presence of considerable time delays in many industrial processes is well recognized and achievable performances of conventional unity feedback control systems are degraded if a process has a relatively large time delay compared to its time constants. In this case, dead time compensation is necessary in order to enhance the performances. The most popular scheme for such compensation is the Smith Predictor, but it is unsuitable for unstable or lightly damped processes because the compensated closed-loop system always contains the process poles themselves. An alternative scheme for delay elimination from the closed-loop is the finite spectrum assignment (FSA) strategy and it can arbitrarily assign the closed-loop spectrum. One may note that the Smith Predictor Control can be found in delay systems control books and many process control books, but the FSA control is rarely included in these books. It is therefore timely and desirable to fill this gap by writing a book which gives a comprehensive treatment of the FSA approach. This is useful and worthwhile since the FSA provides not only an alternative way but also certain advantages over the Smith-Predictor. The book presents the state-of-the-art of the finite spectrum assignment for time-delay systems in frequency domain. It mainly contains those works carried out recently by the authors in this field. Most of them have been published and others are awaiting publication. They are assembled together and reorganized in such a way that the presentation is logical, smooth and systematic."
H... control theory is a subject that deals with the minimisation of the H... norm of the transfer matrix from an exogenous disturbance to a pertinent controlled output of a given plant. H... Control and Its Applications examines both the theoretical and practical aspects of H... control from the angle of the structural properties of linear systems. Constructive algorithms for finding solutions to general singular H... control problems are presented, as well as solutions to general H... almost disturbance decoupling problems, and the applications of the theory to real-life problems with actual implementations is also presented. The book deals with all such issues for general continuous - and discrete-time systems. The book can be used in graduate courses in departments of aeronautics and astronautics, applied mathematics, chemical engineering, electrical engineering and mechanical engineering. It is also invaluable for practising engineers in industry.
Orthogonal Functions may be divided into two classes. The class of continuous systems and the discontinuous class of piecewise constant systems. Problems arise because continuous systems form an unsatisfactory basis for the expansion of functions containing discontinuities whilst piecewise constant systems insert artificial discontinuities into all representations. Since these two classes of functions would be unsuccessful in coping with functions that possess both continuity and discontinuity we must look to General Hybrid Orthogonal Functions (GHOF) which have been shown to be the most appropriate in such situations. This book introduces the system of GHOF, discusses its properties, develops an operational algebra for the discretization of continuous dynamic systems on the system of GHOF and illustrates its use as a flexible and powerful framework of computational tools in a wide range of systems and control.
The behaviour of steel structures and the criteria used in their design are set out in detail in this book. The book bridges the gap between the methods of analysis and the sizing of structural components. The basis of the limit state design criteria of the latest Australian code for structural steel are explained, and the reader is pointed to the relevant provisions of the code.
This monograph was motivated by a very successful workshop held before the 3rd IEEE Conference on Decision and Control held at the Buena Vista Hotel, lake Buena Vista, Florida, USA. The workshop was held to provide an overview of polynomial system methods in LQG (or H ) and Hoo optimal control and 2 estimation. The speakers at the workshop were chosen to reflect the important contributions polynomial techniques have made to systems theory and also to show the potential benefits which should arise in real applications. An introduction to H2 control theory for continuous-time systems is included in chapter 1. Three different approaches are considered covering state-space model descriptions, Wiener-Hopf transfer function methods and finally polyno mial equation based transfer function solutions. The differences and similarities between the techniques are explored and the different assumptions employed in the solutions are discussed. The standard control system description is intro duced in this chapter and the use of Hardy spaces for optimization. Both control and estimation problems are considered in the context of the standard system description. The tutorial chapter concludes with a number of fully worked ex amples." |
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