1、 IEC 61400-4 Edition 1.0 2012-12 INTERNATIONAL STANDARD Wind turbines Part 4:Design requirements for wind turbine gearboxes IEC 61400-4:2012(E)colourinsideCopyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction o
2、r distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including
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9、e Customer Service Centre:csciec.ch.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC 61400-4 Edition 1.0 2012-12 INTERNATIONAL STANDARD Wind turbi
10、nes Part 4:Design requirements for wind turbine gearboxes INTERNATIONAL ELECTROTECHNICAL COMMISSION XG ICS 27.180 PRICE CODE ISBN 978-2-83220-506-8 Warning!Make sure that you obtained this publication from an authorized distributor.colourinsideCopyrighted material licensed to BR Demo by Thomson Reut
11、ers(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 61400-4 IEC:2012(E)CONTENTS FOREWORD.7 INTRODUCTION.9 1 Scope.10 2 Normative references.10 3 Terms,definitions and conventions.12 3.1 Terms and definitions
12、.12 3.2 Conventions.15 4 Symbols,abbreviations and units.17 4.1 Symbols and units.17 4.2 Abbreviations.21 5 Design for reliability.23 5.1 Design lifetime and reliability.23 5.2 Design process.24 5.3 Documentation.26 5.4 Quality plan.26 6 Drivetrain operating conditions and loads.27 6.1 Drivetrain de
13、scription.27 6.1.1 General.27 6.1.2 Interface definition.27 6.1.3 Specified requirements across interfaces.28 6.2 Deriving drivetrain loads.28 6.2.1 Wind turbine load simulation model.28 6.2.2 Wind turbine load calculations.29 6.2.3 Reliability of load assumptions.29 6.3 Results from wind turbine lo
14、ad calculations.29 6.3.1 General.29 6.3.2 Time series.30 6.3.3 Fatigue load.30 6.3.4 Extreme loads.31 6.4 Operating conditions.31 6.4.1 General.31 6.4.2 Environmental conditions.31 6.4.3 Operating strategies.32 6.5 Drivetrain analysis.32 7 Gearbox design,rating,and manufacturing requirements.32 7.1
15、Gearbox cooling.32 7.2 Gears.33 7.2.1 Gear reliability considerations.33 7.2.2 Gear rating.33 7.2.3 Load factors.34 7.2.4 Gear materials.36 7.2.5 Subsurface initiated fatigue.37 7.2.6 Gear accuracy.37 7.2.7 Gear manufacturing.37 7.3 Bearings.38 7.3.1 General.38 Copyrighted material licensed to BR De
16、mo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-27-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.61400-4 IEC:2012(E)3 7.3.2 Bearing reliability considerations.38 7.3.3 Bearing steel quality requirements.39 7.3.4 General design considerations.39 7.3.5 Bearing interface requirements.42 7.3.6 Bearing design issues.43 7.3.7 Bearing lubrication.46 7.3.8 Rating calculations.47 7.4 Shafts,keys,housing joints,splines and fasteners.50 7.
