Reliability Data Banks

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RELIABILITY DATA BANKS

Edited by

A. G. CANNON and

A. BENDELL

ELSEVIER APPLIED SCIENCE LONDON and NEW YORK

ELSEVIER SCIENCE PUBLISHERS LTD Crown House, Linton Road, Barking, Essex IGI18JU, England

Sole Distributor in the USA and Canada ELSEVIER SCIENCE PUBLISHING CO., INC. 655 Avenue of the Americas, New York, NY 10010, USA WITH 25 TABLES AND 136 ILLUSTRATIONS

© 1991 ELSEVIER SCIENCE PUBLISHERS LTD Chapter 7 © 1991 US Government Chapter 10 © 1991 IAEA British Library Cataloguing in Publication Data Reliability data banks 1. Engineering equipment. Reliability. I. Cannon, A. G. II. Bendell, A. 025.0662000452

Data banks.

ISBN 1-85166-513-7 Library of Congress Cataloging-in-Publication Data Reliability data banks / edited by A. G. Cannon and A. Bendel!. p. em. Includes bibliographical references and index. ISBN 1-85166-513-7 1. Reliability (Engineeringt-Data bases. I. Cannon, A. G. II. Bendell, A. TA169.R437 1991 620'.00452'0285574-dc20 90-42119 CIP

No responsibility is assumed by the Publishers for any injury and/or damage to persons or property as a matter of products liability, negligence or otherwise, or from any use or operation of any methods, ' products, instructions or ideas contained in the material herein. Special regulations for readers in the USA This publication has been registered with the Copyright Clearance Center Inc. (CCq, Salem, Massachusetts. Information can be obtained from the CCC about conditions under which photocopies of parts of this publication may .be made in the USA. All other copyright questions, including photocopying outside of the USA, should be referred to the publisher. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.

Contents

List of Contributors

.

1 RELIABILITY (A. Bendell) . 1.1 Introduction. 1.2 What is Reliability? Why Want Reliability? Principles of Achieving Reliability 1.3 Quantifying Reliability . 1.4 The Methods of Systems Reliability Synthesis 1.5 Need for Reliability Data

XI

1 1 1 3 5 7

2 PRINCIPLES OF RELIABILITY DATA BASES (A. Bendell) 2.1 Purposes 2.2 Construction. 2.3 Data Acquisition . 2.4 Physical Implementation 2.5 Development and Operation

11 11 12 13 14 17

3 ANALYSIS METHODOLOGIES (A. Bendell) 3.1 Restrictions Owing to Data Base Assumptions 3.2 Constant Fault-Rate or Failure-Rate Methods 3.3 Non-Constant Fault-Rate Methods; The Weibull Distribution 3.3.1 Probability Plotting . 3.3.2 Hazard Plotting . 3.4 More General Data Structures

19 19 19 23 23 32 38

4 SOME ACHIEVEMENTS DUE TO THE DEVELOPMENT OF DATA BANKS (A. G. Cannon) 4.1 Introduction. 4.2 The Nuclear Industry . v

43 43 44

vi

CONTENTS

4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.1 0

Aircraft Industry . Electronics Industry Chemical Industry Data Computational Considerations Data Needs or Requirements Other Factors Worthy of Consideration Staffing . 4.10.1 Factors to be Investigated.

5 F