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"Tribology in Machine Design is strongly recommended for machine designers, and engineers and scientists interested in tribology. It should be in the engineering library of companies producing mechanical equipment."Applied Mechanics Review Tribology in Machine Design explains the role of tribology in the design of machine elements. It shows how algorithms developed from the basic principles of tribology can be used in a range of practical applications within mechanical devices and systems.The computer offers today's designer the possibility of greater stringency of design analysis. Dr Stolarski explains the procedures and techniques that allow this to be exploited to the full. This is a particularly practical and comprehensive reference source book for the practising design engineer and researcher. It will also find an essential place in libraries catering for engineering students on degree courses in universities and polytechnics. The material is grouped according to applications for ease of use and reference. Subject covered from fundamentals to applied methodsValuable to both student and professional readersCheaper than competing texts
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Tribology in Machine Design
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Tribology in Machine Design
T. A. STOLARSKI MSc, PhD, DSc, DIG, CEng, MIMechE
OXFORD AUCKLAND BOSTON JOHANNESBURG
MELBOURNE NEW DELHI
Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd A member of the Reed Elsevier plc group First published 1990 Reprinted 2000 © T. A. Stolarski 1990 All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1P 0LP. Applications for the copyright holder's written permission to reproduce any part of this publication should be addressed to the publishers
British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Library of Congress Cataloguing in Publication Data A catalogue record for this book is available from the Library of Congn ISBN 0 7506 3623 8
Printed and bound in Great Britain
FOR EVERY TITLE THAT WE PUBLISH. BUTTERWORTH-HEINEMANN WILL PAY FOR BTCV TO PUNT AND CARE FOR A TREE.
Contents
Preface
xi
1.
Introduction to the concept of tribodesign
1
1.1. 1.2.
Specific principles of tribodesign Tribological problems in machine design 1.2.1. Plain sliding bearings 1.2.2. Rolling contact bearings 1.2.3. Piston, piston rings and cylinder liners 1.2.4. Cam and cam followers 1.2.5. Friction drives 1.2.6. Involute gears 1.2.7. Hypoid gears 1.2.8. Worm gears
2.
Basic principles of tribology
2.1. 2.2 2.3 2.4. 2.5. 2.6 2.7 2.8.
Origins of sliding friction Contact between bodies in relative motion Friction due to adhesion Friction due to ploughing Friction due to deformation Energy dissipation during friction Friction under complex motion conditions Types of wear and their mechanisms 2.8.1. Adhesive wear 2.8.2. Abrasive wear 2.8.3. Wear due to surface fatigue 2.8.4. Wear due to chemical reactions 2.9. Sliding contact between surface asperities 2.10. The probability of surface asperity contact 2.11. Wear in lubricated contacts 2.11.1. Rheological lubrication regime 2.11.2. Functional lubrication r