Reliability in Automotive and Mechanical Engineering Determination o

In the present contemporary climate of global competition in every branch of engineering and manufacture it has been shown from extensive customer surveys that above every other attribute, reliability stands as the most desired feature in a finished produ

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Bernd Bertsche

Reliability in Automotive and Mechanical Engineering Determination of Component and System Reliability In Collaboration with Alicia Schauz and Karsten Pickard

With 337 Figures and 66 Tables

123

Prof.Dr. Bernd Bertsche Universit¨at Stuttgart Fak. 07 Maschinenbau Inst. Maschinenelemente Pfaffenwaldring 9 70569 Stuttgart Germany [email protected]

ISBN: 978-3-540-33969-4

e-ISBN: 978-3-540-34282-3

DOI: 10.1007/978-3-540-34282-3 Library of Congress Control Number: 2008921996 c 2008 Springer-Verlag Berlin Heidelberg  This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Cover design: eStudio Calamar S.L., F. Steinen-Broo, Pau/Girona, Spain Printed on acid-free paper 9 8 7 6 5 4 3 2 1 springer.com

Preface

Reliability and maintenance coupled with quality represent the three major columns of today’s modern technology and life. The impact of these factors on the success and survival of companies and organisations is more important than ever before. Although these disciplines may be viewed as non-profitable, experience has shown that neglecting or omitting them can lead to severe consequences. This is underlined by the dramatically increasing number of callbacks. In fact, over the last fifteen years the number of callbacks has tripled. Just recently a huge recall in the toy industry occurred due to lead contaminated toys. In the automotive industry callbacks arise regularly for several varying reasons. Since products are becoming ever more complex and the available time for development is continuously decreasing, the necessity for and influence of the three pillars: reliability, maintenance and quality, will only continue to increase in the future. Considering one classic example of a complex product, the passenger car, while bearing the callback statistics in mind, it is not surprising that the attributes “reliability” and “quality” are the two most important considerations for customers buying a new car. This trend has been observed and confirmed over several years. The increasing demand on reliability methods combined with the importance of studying and understanding them led me to the decision to compose a book about reliability and maintenance. Originally, this book was only published in German, but