AS/NZS 4968.3:2003

1 - AS/NZS 4968.3:2003 HEAVY ROAD VEHICLES-MECHANICAL COUPLING BETWEEN ARTICULATED VEHICLE COMBINATIONS - KINGPINS AND...
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
7 - 3 DEFINITIONS
7 - 3.1 Boundary conditions
7 - 3.2 Design case
7 - 3.3 Endurance limit (also known as fatigue limit)
7 - 3.4 Finite element analysis (FEA)
7 - 3.5 Kingpin
7 - 3.6 Load case
7 - 3.7 Material test
7 - 3.8 Node
7 - 3.9 Shall
7 - 3.10 Should
7 - 3.11 Skid plate
7 - 3.12 Skid plate locking key
7 - 3.13 Ultimate tensile strength (UTS)
8 - 3.14 von Mises stress
8 - 4 SKID PLATE
8 - 4.1 Design
8 - 4.2 Material
8 - 4.3 Installation
8 - 4.4 Flatness
8 - 4.5 Attachment
8 - 4.6 Attachment of skid plate locking key
12 - 5 KINGPIN ATTACHMENT
12 - 5.1 Strength and attachment method
12 - 5.2 Kingpin protrusion
12 - 6 RATING
12 - 6.1 General
12 - 6.2 D-rated kingpins-Dynamic test
13 - 6.3 M-rated kingpins
13 - 6.3.1 Material strength
13 - 6.3.2 Hardness
13 - 7 SELECTION
14 - 8 MATERIALS
14 - 8.1 General
14 - 8.2 Calculation of carbon equivalent
14 - 9 RECOMMENDED WEAR LIMITS
15 - 10 DIMENSIONS
15 - 10.1 General
15 - 10.2 Bolt-in kingpins
15 - 10.3 Weld-in kingpins
20 - APPENDIX A - DYNAMIC TEST METHOD
20 - A1 SCOPE
20 - A2 PRINCIPLE
20 - A3 APPARATUS
20 - A4 PROCEDURE
20 - A4.1 Inspection before testing
20 - A4.2 Installation of kingpin
20 - A4.3 Dynamic test load
20 - A4.4 Inspection after testing
20 - A5 REPORT
22 - APPENDIX B - DETERMINATION OF THE DYNAMIC STRENGTH OF D-RATED KINGPINS USING FINITE ELEMENT ANALYSIS
22 - B1 SCOPE
22 - B2 APPLICATION
22 - B3 FEA MODEL REQUIREMENTS
22 - B3.1 FEA model description
22 - B3.2 Material
22 - B3.3 Limits
23 - B3.4 Codes
24 - B4 VALIDATION
24 - B5 STRESS ANALYSIS AND ENDURANCE LIMIT
24 - B5.1 Stress analysis
25 - B5.2 Steady state test endurance limit
25 - B6 REPORT
26 - APPENDIX C - GUIDELINES FOR THE ATTACHMENT OF KINGPIN TO SKID PLATE
26 - C1 SCOPE
26 - C2 STRENGTH OF ATTACHMENT
26 - C3 METHODS OF ATTACHMENT

Specifies requirements for 50 mm, 75mm and 90 mm kingpins for semi-trailers used in articulated vehicles, B-doubles and road trains, in normal use on both sealed and unsealed roads.

This Standard specifies requirements for 50 mm, 75 mm and 90 mm kingpins for semitrailers used in articulated vehicles, B-doubles, and road trains, in normal use on both sealed and unsealed roads. The requirements cover mechanical properties, dimensional standards for interchangeability and dynamic testing (refer to Appendix A). The determination of dynamic strength using finite element analysis is given in Appendix B. NOTES: 1 Recommendations and requirements for fifth wheel assemblies on prime movers are given in AS/NZS 4968.2. 2 Guidelines for the attachment of kingpin to skid plate are given in Appendix C.3 The method of calculation of D-values is given in AS/NZS 4968.1.

First published as part of AS D14-1968.
AS D15 first published 1968.
AS 1771 first published 1975.
AS 1772 first published 1975.
AS 1773 first published 1975.
AS D14-1968 revised and redesignated as AS 2175.1-1978.
AS D15-1968 revised and redesignated as AS 2175.2-1978.
Second edition AS 1771-1987.
AS 1772-1975 and AS 1773-1975 revised, amalgamated and redesignated as AS 1773-1990.
AS 2175.1-1978 and AS 2175.2-1978 revised, amalgamated and redesignated as AS 2175-1990.
AS 4235 first published 1994.
Second edition AS 2175-1995.
Third edition AS 1773-1996.
Third edition AS 1771-1996.
AS 2175 Supplement 1 first published 2002.
AS 1771-1996, AS 1773-1996, AS 2175-1995, AS 2175 Supplement 1-2002 and AS 4235-1994 jointly revised, amalgamated and redesignated in part as AS 4968.2:2003.