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  • Topic: Preventive maintenance, Maintenance, Predictive maintenance
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AN INTRODUCTION TO
PREDICTIVE MAINTENANCE
Second Edition

AN INTRODUCTION
TO PREDICTIVE
MAINTENANCE
Second Edition

R. Keith Mobley

Amsterdam London New York Oxford Paris Tokyo
Boston San Diego San Francisco Singapore Sydney

Butterworth-Heinemann is an imprint of Elsevier Science.
Copyright © 2002, Elsevier Science (USA). 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.

Recognizing the importance of preserving what has been written, Elsevier-Science prints its books on acid-free paper whenever possible.
Library of Congress Cataloging-in-Publication Data
Mobley, R. Keith, 1943–.
An introduction to predictive maintenance / R. Keith Mobley.—2nd ed. p. cm.
Includes index.
ISBN 0-7506-7531-4 (alk. paper)
1. Plant maintenance—Management. I. Title.
TS192 .M624 2002
658.2¢02—dc21
2001056670
British Library Cataloguing-in-Publication Data
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Printed in the United States of America

1 Impact of Maintenance ...........................

1

1.1 Maintenance management methods ......

2

1.2 Optimizing predictive maintenance .........

10

2 Financial Implications and Cost
Justification ................................................

23

2.1 Assessing the need for condition
monitoring .....................................................

24

2.2 Cost justification .....................................

25

2.3 Justifying predictive maintenance ...........

29

2.4 Economics of preventive maintenance ...

32

3 Role of Maintenance Organization ........

43

3.1 Maintenance mission ..............................

43

3.2 Evaluation of the maintenance
organization ..................................................

44

3.3 Designing a predictive maintenance
program ........................................................

50

4 Benefits of Predictive Maintenance .......

60

4.1 Primary uses of predictive
maintenance .................................................

61

5 Machine-Train Monitoring
Parameters ..................................................

74

5.1 Drivers ....................................................

75

5.2 Intermediate drives .................................

78

5.3 Driven components .................................

86

6 Predictive Maintenance Techniques .....

99

6.1 Vibration monitoring ................................

99

6.2 Themography .........................................

105

6.3 Tribology .................................................

108

6.4 Visual inspections ...................................

111

6.5 Ultrasonics ..............................................

111

6.6 Other techniques ....................................

112

7 Vibration Monitoring and Analysis ........

114

7.1 Vibration analysis applications ...............

114

7.2 Vibration analysis overview ....................

117

7.3 Vibration sources ....................................

122

7.4 Vibration theory ......................................

125

7.5 Machine dynamics ..................................

132

7.6 Vibration data types and formats ............

146

7.7 Data acquisition ......................................

152

7.8 Vibration analyses techniques ................

161...
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