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High Speed Off-Road Vehicles

Autor Bruce Maclaurin
en Limba Engleză Hardback – 24 sep 2018
A concise reference that provides an overview of the design of high speed off-road vehicles High Speed Off-Road Vehicles is an excellent, in-depth review of vehicle performance in off-road conditions with a focus on key elements of the running gear systems of vehicles. In particular, elements such as suspension systems, wheels, tyres, and tracks are addressed in-depth. It is a well-written text that provides a pragmatic discussion of off-road vehicles from both a historical and analytical perspective. Some of the unique topics addressed in this book include link and flexible tracks, ride performance of tracked vehicles, and active and semi-active suspension systems for both armoured and unarmoured vehicles. The book provides spreadsheet-based analytic approaches to model these topic areas giving insight into steering, handling, and overall performance of both tracked and wheeled systems. The author further extends these analyses to soft soil scenarios and thoroughly addresses rollover situations. The text also provides some insight into more advanced articulated systems. High Speed Off-Road Vehicles: Suspensions, Tracks, Wheels and Dynamics provides valuable coverage of: * Tracked and wheeled vehicles * Suspension component design and characteristics, vehicle ride performance, link track component design and characteristics, flexible track, and testing of active suspension test vehicles * General vehicle configurations for combat and logistic vehicles, suspension performance modelling and measurement, steering performance, and the effects of limited slip differentials on the soft soil traction and steering behavior of vehicles Written from a very practical perspective, and based on the author's extensive experience, High Speed Off-Road Vehicles provides an excellent introduction to off-road vehicles and will be a helpful reference text for those practicing design and analysis of such systems.
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Specificații

ISBN-13: 9781119258780
ISBN-10: 1119258782
Pagini: 272
Dimensiuni: 175 x 250 x 19 mm
Greutate: 0.65 kg
Editura: Wiley
Locul publicării:Chichester, United Kingdom

Public țintă

Tier 3/ P&R
Primary: Engineers and designers in the off–road vehicle industry, and military (engineers and vehicles manufacturers).
Secondary: Graduate students in automotive and mechanical engineering.

Cuprins

Series Preface xiii
Acknowledgements xv
Introduction xvii
1 Tracked Vehicle Running Gear and Suspension Systems 1
1.1 General Arrangement 1
1.2 Transverse Torsion Bars 2
1.3 Coil Springs 6
1.4 Hydrogas Suspensions 8
1.5 Dampers 20
2 Vehicle Track Systems 23
2.1 Link Tracks 23
2.2 Flexible Tracks 48
3 Tracked Vehicle Suspension Performance: Modelling and Testing 59
3.1 Human Response to Whole-Body Vibration (WBV) and Shock 59
3.2 Terrain Profiles 64
4 Controllable Suspensions 89
4.1 Height and Attitude Control 89
4.2 Actively Controlled Damping (Semi-Active Suspensions) 91
4.3 Active Suspension Systems 91
4.4 DERA Active Suspension Test Vehicles 93
4.5 Conclusions 100
5 Wheeled Vehicle Drivelines and Suspensions 103
5.1 Unarmoured Vehicles 103
5.2 Armoured Vehicles 112
5.3 Interconnected Suspensions 116
6 Wheeled Vehicle Suspension Performance 123
6.1 Quarter-Car Model 123
6.2 Wheelbase Filter 126
6.3 DROPS Truck Ride Measurements 127
7 Steering Performance of Tracked and Wheeled Vehicles 133
7.1 Tracked Vehicles 133
7.2 Comparing Skid and Ackermann Steered Wheeled Vehicles 156
8 Soft-Soil Performance of Wheeled and Tracked Vehicles 177
8.1 Basic Requirements 177
8.2 Models for Soft Cohesive Soils 180
8.3 Models for Dry Frictional Soils 189
8.4 Space Efficiency of Running Gear Systems for Armoured Vehicles 194
8.5 Tractive Force-Slip Relationship for Tyres in Soft Cohesive Soils 197
9 Effect of Free, Locked and Limited-Slip Differentials on Traction and Steering Performance 203
9.1 Types of Lockable and Limited-Slip Differentials 203
9.2 Relationships for Frictional Limited-Slip Differentials 206
9.3 Traction Performance 209
'9.4 Steering Performance on a Road Surface 214
10 Articulated Vehicles 217
10.1 Articulated Tracked Vehicles 217
10.2 Articulated Wheeled Vehicles 222
11 Vehicle Rollover Behaviour 227
11.1 Basic Considerations 227
11.2 Methods to Reduce the Likelihood of Rollover 229
11.3 Truck Rollover: A Case Study 230
References 233
Notation 235
Abbreviations 243
Bibliography 245
Index 247