Universal Joints and Driveshafts H.Chr.Seherr-Thoss · F ... - Index of

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Preface to the second English edition An important date in the history of automotive engineering was celebrated at the start of the 1980s: 50 years of front-wheel drives in production vehicles. This bicentennial event aroused interest in the development, theory and future of driveshafts and joints. The authors originally presented all the available knowledge on constantvelocity and universal-joint driveshafts in German as long ago as 1988, followed by English in 1992 and Chinese in 1997. More than ten years have passed since then, in which time technology has also made major progress in the field of driveshafts. Driveshaft design and manufacturing process has kept pace with the constantly growing demands of the various users. More powerful engines with higher torques, new fields of application with increased stresses, e.g. off-road and heavy goods vehicles or rolling mills, improved materials, new production processes and advanced experimental and test methods have imposed completely new requirements on the driveshaft as a mechanical component. GKN Driveline has made a major contribution to the further development of the driveshaft and will maintain this effort in the future. At our Research & Product Development Centres, GKN engineers have defined basic knowledge and conceived product improvements for the benefit of the automotive, agricultural, and machinery industry of mechanically engineered products for the world. In close cooperation with its customers GKN has created low-noise, vibration and maintenance-free driveshafts. The cumulative knowledge acquired has been compiled in this second edition book that has been updated to reflect the latest state of the art. It is intended to serve both as a textbook and a work of reference for all driveline engineers, designers and students who are in some way involved with constant-velocity and universal-joint driveshafts. Redditch, England Arthur Connelly July 2005 Chief Executive Officer GKN Automotive Driveline Driveshafts
Preface to the second German edition 1989 saw the start of a new era of the driveline components and driveshafts, driven by changing customer demands. More vehicles had front wheel drive and transverse engines, which led to considerable changes in design and manufacture, and traditional methods of production were revisited. The results of this research and development went into production in 1994–96: – for Hooke’s jointed driveshafts, weight savings were achieved through new forgings, noise reduction through better balancing and greater durability through improved lubrication. – for constant velocity joints, one can talk about a “New Generation’’, employing something more like roller bearing technology, but where the diverging factors are dealt with. The revised Chapters 4 and 5 re-examine the movement patterns and stresses in these joints. The increased demands for strength and precision led to even intricate shapes being forged or pressed. These processes produce finished parts with tolerances of 0.025 mm. 40 million parts were forged in 1998. These processes were also reviewed. Finally, advances were made in combined Hooke’s and constant velocity jointed driveshafts. A leading part in these developments was played by the GKN Group in Birmingham and Lohmar, which has supported the creation of this book since 1982. As a leading manufacturer they supply 600,000 Hooke’s jointed driveshafts and 500,000 constant velocity driveshafts a year. I would like to thank Reinhold Schoeberl for his project-management and typography to carry out the excellent execution of this book. I would also like to thank my wife, Therese, for her elaboration of the indices. Moreover my thanks to these contributors: Gerd Faulbecker (GWB Essen) Joachim Fischer (ZF Lenksysteme Gmünd) Werner Jacob (Ing. Büro Frankfurt/M) Christoph Müller (Ing. Büro Ingolstadt) Prof. Dr. Ing. Ernst-Günter Paland (TU Hannover, IMKT) Jörg Papendorf (Spicer GWB Essen) Stefan Schirmer (Freudenberg) Ralf Sedlmeier (GWB Essen) Armin Weinhold (SMS Eumuco Düsseldorf/Leverkusen)
Page 1 and 2: Universal Joints and Driveshafts H.
Page 3: Authors: Hans Christoph Seherr-Thos
Page 7 and 8: Contents Index of Tables . . . . .
Page 9 and 10: Contents XI 4.3.3 Forces on the Sup
Page 11 and 12: 1.2 Theorie der Übertragung von Dr
Page 13 and 14: Index of Tables XV Figure 5.29 Hook
Page 15 and 16: XVIII Notation Symbol Unit Meaning
Page 17 and 18: 1.2 Theorie der Übertragung von Dr
Page 19 and 20: 1 Universal Jointed Driveshafts for
Page 21 and 22: 1.1 Early Reports on the First Join
Page 23 and 24: 1.2 Theory of the Transmission of R
Page 35 and 36: 1.3 The Ball Joints 17 1.3 The Ball
Page 37 and 38: 1.3 The Ball Joints 19 1.3.1 Weiss
Page 39 and 40: 1.3 The Ball Joints 21 Principal di
Page 41 and 42: 1.3 The Ball Joints 23 Fig. 1.24. F
Page 43 and 44: 1.3 The Ball Joints 25 angle r (Fig
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Page 47 and 48: 1.3 The Ball Joints 29 motor vehicl
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1.4 Development of the Pode-Joints
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1.2 Theory of the Transmission of R
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1.5 First Applications of the Scien
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1.6 Literature to Chaper 1 51 1.27
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54 2 Theory of Constant Velocity Jo
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3 Hertzian Theory and the Limits of
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3.2 Equations of Body Surfaces 83 S
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3.3 Calculating the Coefficient cos
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3.3 Calculating the Coefficient cos
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3.4 Calculating the Deformation d a
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3.5 Solution of the Elliptical Sing
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3.6 Calculating the Elliptical Inte
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3.7 Semiaxes of the Elliptical Cont
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3.9 Width of the Rectangular Contac
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3.9 Width of the Rectangular Contac
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3.10 Deformation and Surface Stress
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3.12 Literature to Chapter 3 107 Me
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4 Designing Joints and Driveshafts
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4.1 Design Principles 111 and P per
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4.1 Design Principles 113 Individua
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4.1 Design Principles 115 a c Fig.
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4.2 Hooke’s Joints and Hooke’s
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4.3 Forces on the Support Bearings
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4.3 Forces on the Support Bearings
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4.4 Ball Joints 153 a b c Fig. 4.25
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4.4 Ball Joints 155 8 The curvature
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4.4 Ball Joints 157 Table 4.5. Radi
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4.4 Ball Joints 159 a ball-joint b
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4.4 Ball Joints 161 δ d R’ + - 2
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4.4 Ball Joints 163 a b Fig. 4.33.
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4.4 Ball Joints 165 2. E. Aucktor (
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4.4 Ball Joints 167 Joint centre ef
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4.4 Ball Joints 169 Figure 4.37 sho
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4.4 Ball Joints 171 a a e centring
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4.4 Ball Joints 173 The centrally s
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4.4 Ball Joints 175 a b Fig. 4.44a,
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4.4 Ball Joints 177 4.4.5.3 Steerin
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4.4 Ball Joints 179 For outward pre
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4.4 Ball Joints 181 Fig. 4.48. The
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4.4 Ball Joints 183 spherical surfa
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4.4 Ball Joints 185 p 0 5000 4500 4
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4.4 Ball Joints 187 4.4.6 Structura
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4.4 Ball Joints 189 Joint A E S G B
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4.4 Ball Joints 191 Table 4.10. Rat
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4.4 Ball Joints 193 - for speeds >
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4.4 Ball Joints 195 ∆A ∆S Nm ma
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4.4 Ball Joints 197 4.4.6.5 Calcula
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4.4 Ball Joints 199 Pressure ellips
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4.4 Ball Joints 201 In Table 3.3 mn
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4.4 Ball Joints 203 a b c Principal
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4.4 Ball Joints 205 articulation an
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4.4 Ball Joints 207 4.4.8 Service L
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4.5 Pode Joints 209 According to th
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4.5 Pode Joints 211 a b Fig. 4.74.
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4.5 Pode Joints 213 Robert Schwenke
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4.5 Pode Joints 215 4.5.2.1 Static
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4.5 Pode Joints 217 Size of joint G
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4.5 Pode Joints 219 The specific lo
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4.5 Pode Joints 221 Fig. 4.80. Trip
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4.5 Pode Joints 223 It also follows
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4.5 Pode Joints 225 In order to cal
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4.5 Pode Joints 227 1 1 1 1 2a R
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4.5 Pode Joints 229 Fig. 4.86. Redu
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4.6 Materials, Heat Treatment and M
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4.5 Pode Joints 241 treatment. The
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4.7 Basic Procedure for the Applica
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4.8 Literature to Chapter 4 247 4.2
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250 5 Joint and Driveshaft Configur
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c 292 5 Joint and Driveshaft Config
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c 298 5 Joint and Driveshaft Config
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346 Name Index Galilei, Galileo (15
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348 Name Index Weber, Constantin He
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350 Subject Index fixed joint - Loe
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