Die aerodynamische Gestaltung von Fahrzeugen wie Automobile und Eisenbahnen, von Bauwerken wie weit gespannte Brucken, Turme oder Hochhauser, ist eine ausserst vielschichtige Aufgabe. Ihre Auslegung basiert auf ingenieurmassigen Verfahren, aber ihre Optimierung vorwiegend auf dem Prinzip von Trial & Error. Dabei erweist es sich als nutzlich, das anstehende Problem auf moglichst einfache Modellfalle zuruckzufuhren. Das vorliegende Buch stellt die dazu erforderlichen Grundlagen bereit und beschreibt, wie sie anzuwenden sind. Gegenuber der ersten Auflage wurde das Buch vollkommen uberarbeitet und erweitert: um die neuen Windlastnormen, die Seitenwindstabilitat von schnellen Zugen, sowie die Wechselwirkung von Aerodynamik und Statik biegeweicher Konstruktionen. Das Kapitel uber die numerischen Verfahren (CFD) wurde auf den allerneuesten Stand gebracht.

Globalisierung und Unternehmensfusionen, gesAttigte MArkte sowie eine zunehmende technische und organisatorische KomplexitAt charakterisieren die Automobilindustrie zu Beginn dieses 21. Jahrhunderts. Die Branche ist gekennzeichnet von einem Wettlauf um Innovationen, der die Konzentration auf den wahren Kundennutzen gefAhrdet.

Das Buch analysiert die Konsequenzen aus den dynamischen VerAnderungen im Markt und gibt konkrete Antworten darauf, wie Automobilzulieferer die aktuellen Herausforderungen meistern kAnnen. Im Mittelpunkt steht dabei der vom Autor entwickelte Management-Navigator, ein Modell, das gezielt langjAhriges Branchenwissen mit fundiertem Managementapproach verknA1/4pft. Praxisorientierte LAsungen und authentische Fallstudien machen das Buch zur PflichtlektA1/4re fA1/4r Brancheninsider und zur faszinierenden LektA1/4re fA1/4r jeden Autofan.

"Das wichtigste vorweg: Die Zulieferer der Automobilindustrie und alle anderen branchennahen Unternehmen haben mit dem vorliegenden Buch von Rainer Kurek einen Managementleitfaden der anderen Art a" unterlegt mit einer hervorragenden Branchenanalyse. Mit seiner punktgenauen Analyse aktueller Probleme legt Rainer Kurek den Finger in die Wunde."

Prof. Dr. h.c. Lothar SpAth, MinisterprAsident a.D.

"Erfolgsstrategien fA1/4r Automobilzulieferer ist nicht nur eine fundierte Bestandsaufnahme a" treffsicher auf den Punkt gebracht;

Rainer Kurek nennt auch ganz konkret die wichtigsten Erfolgskriterien, um am Ende zu den Gewinnern zu zAhlen."

Dr.-Ing. Wolfgang Ziebart, Deputy Chairman of the Executive Board, Continental AG

"Rainer Kurek liefert fundierte Handlungsempfehlungen, Werkzeuge und Ideen, die bei dererfolgreichen BewAltigung der tagtAglichen Herausforderungen in der Automobilindustrie wirksam unterstA1/4tzen."

Siegfried Wolf, Executive Vice-Chairman von Magna International Inc.

Microsystems are an important success factor in the automobile industry. In order to fulfil the customers requests for safety convenience and vehicle economy, and to satisfy environmental requirements, microsystems are becoming indispensable. Thus a large number of microsystem applications came into the discussion. Some examples are sensors for engine management, exhaust and air quality control, immobilizers, ABS, anti skid (ASC) and vehicle dynamics control (VDC), smart airbag systems and other safety applications as obstacle detection and vision enhancement. With the international conference AMAA '98, VDI/VDE-IT provides a platform for the discussion of all MST relevant components for automotive applications. The conference proceedings gather the papers by authors from automobile suppliers and manufacturers.

In the last decade unsupervised pattern discovery in time series, i.e. the problem of finding recurrent similar subsequences in long multivariate time series without the need of querying subsequences, has earned more and more attention in research and industry. Pattern discovery was already successfully applied to various areas like seismology, medicine, robotics or music. Until now an application to automotive time series has not been investigated. This dissertation fills this desideratum by studying the special characteristics of vehicle sensor logs and proposing an appropriate approach for pattern discovery. To prove the benefit of pattern discovery methods in automotive applications, the algorithm is applied to construct representative driving cycles.

Das Buch fuhrt in die CAE-Methoden ein und behandelt die spezifischen Fragestellungen von CAE-Methoden in der Fahrzeugtechnik. Zunachst werden Grundlagen zur Modellbildung und zu Diskretisierungsverfahren fur partielle Differentialgleichungen dargestellt. Die anschliessenden Kapitel beschreiben die Inhalte Temperaturausgleich, Mehrkorpersimulationen sowie Statik und Dynamik elastischer Korper. Es folgt ein Kapitel uber Finite-Elemente. Anschliessend werden die fahrzeugspezifischen Themen Crash- und Insassensimulation, Akustik, Statik und Dynamik von Rohkarosserien, Mehrkorpersimulationen und Lebensdauer, Stromungssimulation und Reifen-Fahrbahn-Wechselwirkungen behandelt. Erganzt werden die Inhalte durch Kapitel uber nichtlineare Phanomene und Optimierungsverfahren."

"Der Konzern ... ruft 850.000 Fahrzeuge wegen Funktionsproblemen in die Werkstatten zuruck."

Mangel stellen ein grosses wirtschaftliches Problem fur den Lieferanten dar, der sich mit verscharften Gewahrleistungspflichten auseinandersetzen muss. Von immer komplexer werdenden technischen Produkten erwartet man heute nicht nur gesteigerte Leistungsfahigkeit, sondern auch erhohte Zuverlassigkeit. Dieses Buch ist eine anwendungsorientierte Einfuhrung in die Zuverlassigkeitstheorie fur Fahrzeug- und Maschinenbauingenieure und bietet als Nachschlage- und Vertiefungswerk fur Zuverlassigkeitsspezialisten viele weitergehende Informationen. Schwerpunktmassig befasst es sich mit der Zuverlassigkeitsanalyse ganzer Systeme.

Der Stoff wurde theoretisch fundiert und zugleich praxisnah aufbereitet, so dass der Leser mit den angegeben Hilfen unmittelbar arbeiten kann. Vertieft werden die beschriebenen Theorien, Begriffe und Vorgehensweisen durch Ubungsbeispiele mit Losungen. Im Detail werden behandelt: Mathematische Grundlagen, Lebensdauerverteilungen, Systemzuverlassigkeitstheorie, FMEA, Fehlerbaumanalyse, Zuverlassigkeitstestplanung, Versuchsauswertung, Berechnung reparierbarer Systeme und Zuverlassigkeitssicherungsprogramme."

Der Band fuhrt in Grundlagen, Auslegung und rechnergestutzte Simulation stationarer und mobiler Gasturbinenanlagen ein. Ausgehend von den realen, thermodynamischen Arbeitsprozessen werden die Hauptkomponenten wie Turboverdichter, Turbinen und Brennraume dargestellt. Darauf aufbauend wird das stationare und instationare Betriebsverhalten simuliert sowie die Anpassung an verschiedene Lastbereiche und Einsatzbedingungen behandelt. Strategien zur Auslegungsmethodik und -optimierung werden insbesondere an typischen Turbofan-Triebwerken demonstriert."

Twentyfour years have gone by since the publication of K. Lohner and H. Muller's comprehen sive work "Gemischbildung und Verbrennung im Ottomotor" in 1967 1.1]' Naturally, the field of mixture formation and combustion in the spark-ignition engine has wit nessed great technological advances and many new findings in the intervening years, so that the time seemed ripe for presenting a summary of recent research and developments. There fore, I gladly took up the suggestion of the editors of this series of books, Professor Dr. H. List and Professor Dr. A. Pischinger, to write a book summarizing the present state of the art. A center of activity of the Institute of Internal-Combustion Engines and Automotive Engineering at the Vienna Technical University, which I am heading, is the field of mixture formation -there fore, many new results that have been achieved in this area in collaboration with the respective industry have been included in this volume. The basic principles of combustion are discussed only to that extent which seemect necessary for an understanding of the effects of mixture formation. The focal point of this volume is the mixture formation in spark-ignition engines, covering both the theory and actual design of the mixture formation units and appropriate intake manifolds. Also, the related measurement technology is explained in this work."

This book introduces readers to the key provisions of the URRAN-based technical asset management system - a methodology for managing resources and risks by analyzing and ensuring the required levels of reliability and safety in Russia's railway transport facilities. It describes the architecture of the URRAN information system's unified corporate platform (UCP URRAN) and its subsystems for infrastructure facilities and rolling stock complexes. It also highlights the UCP URRAN's prospects for development, especially in the application of artificial intelligence to predict dangerous events in railway transport operation. The book is chiefly intended for specialists engaged in practical work on the technical maintenance of railway transport facilities. It can also be used as a reference guide for students and researchers at railway universities or professionals who are dealing with problems in technical asset management in other industries.

Das Buch behandelt ausfuhrlich das Verhalten der thermischen Turbomaschinen unter geanderten Betriebsbedingungen und darauf aufbauend ihre Regelungseigenschaften. Weiter werden die spezifischen Festigkeitsprobleme der Turbomaschinen dargestellt. Diesen Kapiteln ist ein allgemeines Kapitel uber die Grundlagen der Festigkeitsrechnungen vorausgeschickt, das zwar diejenigen Aspekte besonders hervorhebt, die im Turbomaschinenbau vor allem wichtig sind, aber auch fur verwandte Gebiete bedeutsam ist, da eine geraffte Darstellung dieser Art bis heute fehlt. Der Bestimmung der Temperaturverteilung in den massgebenden Konstruktionsteilen (insbes. in der gekuhlten Gasturbine) ist ein weiteres Kapitel gewidmet. Den Abschluss bilden die Ausfuhrungen uber die Schaufelschwingungen und die lauftechnischen Probleme der Rotoren."

Das Werk gibt eine umfassende Darstellung der theoretischen Grundlagen zur Berechnung und Auslegung von Dampfturbinen, Gasturbinen und Turbokompressoren. Der erste Band behandelt die thermodynamische Prozessfuhrung von Dampf- und Gasturbinenanlagen und die thermodynamisch-stroemungstechnische Berechnung der Turbomaschinen selbst. Um zu einem vertieften Verstandnis zu fuhren, wird die Theorie stets aus den Grundwissenschaften heraus entwickelt, weshalb auch ein kurzer Abriss der thermodynamischen und stroemungstechnischen Grundlagen an den Anfang gestellt ist.

Features hundreds of questions and answers about every aspect of car maintenance and repair. Coverage includes step-by-step repair procedures for the range of conditions afflicting cars; consumer information on purchasing accessories; how to increase the longevity of vehicles by following essential maintenance practices; how to get malfunctions repaired properly and keep your mechanic honest, and much more. A detailed table of contents enables readers to easily locate whatever information they need.

Gesamtwerk: In diesem Werk der beiden bedeutenden Aerodynamiker wird das gesamte Gebiet der Flugzeugaerodynamik von den Grundlagen bis zu den Entwicklungen der 60er Jahre des 20. Jahrhunderts in klarer, ingenieursgemasser Form dargestellt. Das Hauptgewicht liegt dabei auf den physikalisch und technisch wichtigen Sachverhalten. Die erlauterten Berechnungsverfahren werden durch zahlreiche Beispielrechnungen und Abbildungen veranschaulicht sowie durch Vergleich mit experimentellen Werten uberpruft. Zweiter Band: Im zweiten Band wird die Theorie des Tragflugels endlicher Spannweite bei inkompressibler Stroemung, die Theorie des Tragflugels bei kompressibler Stroemung, die Aerodynamik des Rumpfes, der Flugel-Rumpf-Anordnung, der Leitwerke sowie der Ruder und Klappen behandelt.

This book is designed to fill a professional vacuum in the new field of advance, high-angle, vectored stealth aircraft. The subject matter presented in the volume has never before been investigated and presented as a unified field of study because it covers entirely new fields and because specialized fragments of this unified field are scattered throughout literature in specific problems. The book is of interest to aeronautical and mechanical engineers, electrical and control engineers, aerospace industry, USAF, US Navy, NASA, pilots and instructors.

Gesamtwerk: In diesem Werk der beiden bedeutenden Aerodynamiker wird das gesamte Gebiet der Flugzeugaerodynamik von den Grundlagen bis zu den Entwicklungen der 60er Jahre des 20.Jahrhunderts in klarer, ingenieursgemasser Form dargestellt. Das Hauptgewicht liegt dabei auf den physikalisch und technisch wichtigen Sachverhalten. Die erlauterten Berechnungsverfahren werden durch zahlreiche Beispielrechnungen und Abbildungen veranschaulicht sowie durch Vergleich mit experimentellen Werten uberpruft. Erster Band: Der erste Band behandelt die Grundlagen der Stromungsmechanik einschliesslich der Gasdynamik und der Grenzschichttheorie, und zwar mit besonderer Betonung der Anwendungen in der Flugtechnik. Ausserdem enthalt der erste Band die Profiltheorie, d.h. den ersten Teil der Aerodynamik des Tragflugels."

It was when I saw the countless number of icebergs floating in the North Atlantic Ocean in August 1964 that I decided to commence research into the solidification mechanism of metals, and already I have been continu- ing this research for two decades. In 1970 my former professor Susumu Miyata received a letter from Pre- sident Jiro Komatsu of the Tokyo Keigokin Seisaskusho Co., Ltd. The letter enclosed a copy of an article written by Mr. Imao Sasaki, chief of the casting research section at Daihatsu Motor Co., Ltd., entitled "Aruminyumu gyoko riron no shimpo" (Progress in aluminum solidi- fication theory) from a journal called "Kinzoku Zairyo" (Metals in En- gineering). This article introduced my research in considerable detail and well-written style. After stating that I "rebuffed conventional theories and enlightened casting engineers", Sasaki wrote that "These research results deserve great attention from casting engineers for the progress they have brought about in basic theories on improved soundness in casting quality." The letter from President Komatsu was a request to arrange a meeting with me. Saying that "I've heard you mention your theory occasionally, but I'd like to hear a full discussion of it for once", Professor Miyata accompanied me to the Tokyo Keigokin Seisakusho Co., Ltd. at Gyoda in Saitama Pre- fecture.

This book includes selected peer-reviewed papers presented at third International Conference on Computational and Experimental Methods in Mechanical Engineering held in June 2021 at G.L. Bajaj Institute of Technology and Management, Greater Noida, U.P, India. The book covers broad range of topics in latest research including hydropower, heat transfer, fluid mechanics, advanced manufacturing, recycling and waste disposal, solar energy, thermal power plants, refrigeration and air conditioning, robotics, automation and mechatronics, and advanced designs. The authors are experienced and experts in their field, and all papers are reviewed by expert reviewers in respective field. The book is useful for industry peoples, faculties, and research scholars.

This book focuses on the design of secure and efficient signature and signcryption schemes for vehicular ad-hoc networks (VANETs). We use methods such as public key cryptography (PKI), identity-based cryptography (IDC), and certificateless cryptography (CLC) to design bilinear pairing and elliptic curve cryptography-based signature and signcryption schemes and prove their security in the random oracle model. The signature schemes ensure the authenticity of source and integrity of a safety message. While signcryption schemes ensure authentication and confidentiality of the safety message in a single logical step. To provide readers to study the schemes that securely and efficiently process a message and multiple messages in vehicle to vehicle and vehicle to infrastructure communications is the main benefit of this book. In addition, it can benefit researchers, engineers, and graduate students in the fields of security and privacy of VANETs, Internet of vehicles securty, wireless body area networks security, etc.

From the Preface: The Proceedings contain papers presented at the 1st Working Conference on "Reliability and Optimization of Structural Systems," Aalborg, Denmark, May 6-8, 1987. The conference was the first scientific meeting of the new IFIP Working Group 7.5 on "Reliability and Optimization of Structural Systems." The purpose of the Working Group 7.5 is: - to promote modern structural system optimization and reliability theory, - to advance international cooperation in the field of structural system optimization and reliability theory, - to stimulate research, development and application of structural system optimization and reliability theory, - to further the dissemination and exchange of information on reliability and optimization of structural system optimization and reliability theory, - to encourage education in structural system optimization and reliability theory.

The German Aerospace Research Establishment (DFVLR) has initiated a new series of seminars concerning fundamental problems in applied engineering sciences. These seminars will be devoted to interdisciplinary topics related to the vast variety of DFVLR activities in the fields of fluid mechanics, flight mechanics, guidance and control, materials and struc tures, non-nuclear energetics, communication technology, and remote sensing. The purpose of the series is twofold, namely, to bring modern ideas and techniques to the attention of the DFVLR in order to stimulate internal activi ties, and secondly, to promulgate DFVLR achievements wi thin the international scientific/technical community. To this end, prominent speakers from Germany and other countries will be invited to join in a series of lectures and discussions on certain topics of mutual interest. The first colloquium of this series dealt with the dynamics of nonlinear systems, especially in relation'to its application to fluid mechanics, particularly in transcritical flows. Of special interest are questions concerning the formation of nonlinear three-dimensional structures in classical fluid mechanical stability problems, the physical process of transition to turbulence, and the appearance of chaotic solutions. The scope of lectures reaches from self-organization in physical systems to structural stability of three-dimensional vortex patterns, the treatment of dissipative and conservative systems, the formation of nonlinear structures in the region of laminar-turbulent transition, and numerical simulation of cumulus cloud convection in meteorology. The seminar should provide an insight into the extent to which theoretical findings in Non linear Dynamics apply to the comprehension of fluid-mechanical problems."

Organized by Deutsche Forschungs- und Versuchsanstalt fur Luft- und Raumfahrt (DFVLR)

The use of catalytic converters for the purification of automotive exhaust gases is a relatively new technology which was brought into existence by social pressures for the preservation of acceptable environmental conditions. The majority of catalytic practitioners have been able to watch the growth of this technology from its inception to its current state of sophistication. Automotive catalytic converter technology is now in a mature state, and this chapter from Vol. 5 Catalysis: Science and Technology by Dr. K. C. Taylor provides a review which covers both the process chemistry and the most important converter design factors. Contents 1. Introduction. . . . . . . . . . . . . . 2. Emission Regulations in the United States. 3. Exhaust Emission Characteristics. . 3 4. 1981 Emission Control Technology. 5 A. Converters. . . 5 B. Control System. 7 8 ~. Catalyst Screening . 6. Laboratory Testing. .10 7. The Chemical Reactions 13 8. Composition of Three-Way Catalysts. 16 A. Rhodium 17 21 B. Platinum. C. Palladium 22 D. Iridium . 22 23 E. Ruthenium and Nickel. F. Cerium Oxide ..... 23 G. Search for Alternatives to Nohle Metals 24 9. Catalyst Supports . 25 A. Pellets .... 26 B. Monoliths . . 26 10. The Transient Behavior of Three-Way Catalysts 27 II. Deterioration of Three-Way Catalysts. 35 A. Thermal Effects. . . . 35 B. Phosphorus Poisoning. . . 37 C. Lead Poisoning. . . . . . * 38 D. Catalyst Poisoning by Sulfur * 40 12. The 0.4 NO,; Research Objective. * 41 13. Control of Diesel Particulate Emissions.

DEFINITION AND NOMENCLATURE A Stirling engine is a mechanical device which operates on a closed regenerative thermodynamic cycle with cyclic compression and expansion of the working fluid at different temperature levels. The flow of working fluid is controlled only by the internal volume changes, there are no valves and, overall, there is a net conversion of heat to work or vice-versa. This generalized definition embraces a large family of machines with different functions; characteristics and configurations. It includes both rotary and reciprocating systems utilizing mechanisms of varying complexity. It covers machines capable of operating as a prime mover or power system converting heat supplied at high tempera ture to output work and waste heat at a lower temperature. It also covers work-consuming machines used as refrigerating systems and heat pumps abstracting heat from a low temperature source and delivering this plus the heat equivalent of the work consumed to a higher tem perature. Finally it covers work-consuming devices used as pressure generators compressing a fluid from a low pressure to a higher pres sure. Very similar machines exist which operate on an open regen erative cycle where the flow of working fluid is controlled by valves. For convenience these may be called Ericsson engines but unfortunate ly the distinction is not widely established and regenerative machines of both types are frequently called 'Stirling engines'."

For courses in engine performance and drivability, fuel emissions systems, and automotive principles. This text is part of the Pearson Automotive Series. Preparing today's automotive students for career success! Market-leading Advanced Engine Performance Diagnosis has been fully updated and expanded to address the latest technology and automotive systems. Written to meet the needs of a second semester Engine Performance (A8) course, it covers many tasks of the ASE A8 content area as well as topics to prepare students for the ASE Advanced Level Engine Performance (L1) certification test. Each chapter includes practical examples and step-by-step photo sequences covering terminology, best practices, and on-the-job procedures. The 7th edition has enhanced chapters on oscilloscopes and DSOs, plus over 75 new full color photos and line drawings. New content includes many case studies that include the "Three Cs" (Complaint, Cause and Correction), plus new content on immobilizer systems, and module programming.