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Active systems 451 For this reason, detailed predictive work will be needed to sort the useful from the gimmick in terms of vehicle dynamics controls. The author’s expectations for the use of active systems on vehicles are given in Table 8.2. Three driving regimes are identified, which may be described as ‘normal’, ‘spirited’ and ‘accident avoidance’. These may be loosely classified as being 0–0.3g lateral acceleration, 0.3–0.6g lateral acceleration and 0.6g lateral acceleration respectively. They are also characterized by driver inputs, particularly in terms of handwheel rates – 0–400 degrees/second, 400–700 degrees/second and 700–1100 degrees/second, respectively. The results in Table 8.2 are not in any sense definitive but the authors considered views in the light of the available evidence. It is hoped that the readers of this text will be part of the group of engineers discovering just how good these judgements are.
Appendix A: Vehicle model system schematics and data sets Tie rod Upper arm Road wheel Wheel knuckle Upper damper Lower damper Lower arm Jack part Tie bar Fig. A.1 Front suspension components UNI SPH REV SPH UNI TRA REV SPH REV Trans Inplane Motion Motion SPH FIX Fig. A.2 Front suspension with joints
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Multibody Systems Approach to Vehic
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Multibody Systems Approach to Vehic
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Contents Preface Acknowledgements N
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Contents vii 4.10.1 Problem definit
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Contents ix 8.2.1 Active suspension
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Preface This book is intended to br
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Preface xiii vehicle design process
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Acknowledgements Mike Blundell In d
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Nomenclature xvii {z I } 1 Unit vec
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Nomenclature xix O n Frame for part
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Nomenclature xxi p Magnitude of re
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1 Introduction The most cost-effect
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Introduction 3 subsequent ‘classi
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Introduction 5 Fig. 1.4 Linearity:
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Introduction 7 While apparently a s
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Introduction 9 3. The body yaws (ro
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Introduction 11 Aspiration Definiti
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Introduction 13 Decomposition: Synt
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Introduction 15 The best multibody
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Introduction 17 shows good correlat
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Introduction 19 generated in numeri
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Introduction 21 1.9 Benchmarking ex
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2 Kinematics and dynamics of rigid
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Kinematics and dynamics of rigid bo
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3 Multibody systems simulation soft
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4 Modelling and analysis of suspens
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Tyre characteristics and modelling
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7 Simulation output and interpretat
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Simulation output and interpretatio
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Appendix C: Glossary of terms 501 s
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References 503 Blundell, M.V. The m
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References 505 Hudi, J. AMIGO - A m
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References 507 Palmer, D. Course no
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References 509 European ADAMS News
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Index Abuse loads, 148 3 g bump, 14
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Index 513 Elk Test, 1 El-Nasher, 29
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Index 515 generalised translational
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Index 517 steer axis inclination, 1
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