Version 5.114A June 2021 SusProg3D - Suspension by Design Robert D Small All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of the publisher. Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks. While every precaution has been taken in the preparation of this document, the publisher and the author assume no responsibility for errors or omissions, or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it. 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Printed: June 2021 Contents 3 Table of Contents Foreword 0 Part 1 Overview 12 1 SusProg3D................................................................................................................................... - Suspension by Design 12 2 PC hardware................................................................................................................................... and software requirements 14 3 To run the................................................................................................................................... program 14 4 Evaluation................................................................................................................................... version 14 Part 2 User Interface 16 1 Screen layout................................................................................................................................... 16 2 Exit ................................................................................................................................... 17 3 Status line................................................................................................................................... 17 4 Toggle items................................................................................................................................... 17 5 Keys ................................................................................................................................... 17 6 Dialog box................................................................................................................................... 17 Buttons ......................................................................................................................................................... 17 Radio buttons......................................................................................................................................................... 18 Check boxes......................................................................................................................................................... 18 Labels ......................................................................................................................................................... 18 Numeric input......................................................................................................................................................... 18 Regional .........................................................................................................................................................settings 19 7 Error and................................................................................................................................... warning boxes 20 8 Result window................................................................................................................................... 20 9 File operations................................................................................................................................... 20 Data file selection......................................................................................................................................................... 20 Save the data......................................................................................................................................................... 21 Print vehicle......................................................................................................................................................... data 21 Print the graphic......................................................................................................................................................... 22 Exit SusProg......................................................................................................................................................... 23 10 About ................................................................................................................................... 23 11 Settings ................................................................................................................................... 24 Part 3 Coordinate system 27 1 Vehicle coordinates.................................................................................................................................... 27 2 Chassis coordinates.................................................................................................................................... 28 3 Upright coordinates.................................................................................................................................... 29 4 Wheel coordinates.................................................................................................................................... 31 5 LH and RH................................................................................................................................... coordinates. 32 Part 4 Suspension geometry types 33 1 Double A-arm,................................................................................................................................... toe link 35 2 Lower A-arm,................................................................................................................................... upper "virtual A-arm", toe link 36 3 Lower A-arm,................................................................................................................................... upper parallel links, trailing link 38 SusProg3D V5.114A June 2021 4 SusProg3D - Suspension by Design 4 Upper A-arm,................................................................................................................................... lower "virtual A-arm", toe link 40 5 Upper A-arm,................................................................................................................................... lower trailing and lateral links, toe link 41 6 Upper and................................................................................................................................... lower lateral links, twin trailing links, toe link 42 7 Upper and................................................................................................................................... lower "virtual A-arms", toe link 44 8 Upper transverse................................................................................................................................... leaf spring, lower reversed A-arm and trailing link 45 9 Upper lateral................................................................................................................................... link, lower reversed A-arm, twin trailing links 46 10 Lower lateral................................................................................................................................... link, upper reversed A-arm, twin trailing links 47 11 Upper lateral................................................................................................................................... link, lower parallel links, twin trailing links 48 12 Ford Integral................................................................................................................................... Link 49 13 Ford Twin................................................................................................................................... I-Beam 50 14 Volkswagen................................................................................................................................... twin trailing links 51 15 Compound................................................................................................................................... link 52 Jaguar IRS......................................................................................................................................................... 53 H-arm + camber......................................................................................................................................................... link 55 Porsche 928......................................................................................................................................................... 56 16 Semi-trailing................................................................................................................................... arm (also includes trailing arm and swing axle)