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About this book

This book deals with the analysis of off-road vehicle dynamics from kinetics and kinematics perspectives and the performance of vehicle traversing over rough and irregular terrain. The authors consider the wheel performance, soil-tire interactions and their interface, tractive performance of the vehicle, ride comfort, stability over maneuvering, transient and steady state conditions of the vehicle traversing, modeling the aforementioned aspects and optimization from energetic and vehicle mobility perspectives. This book brings novel figures for the transient dynamics and original wheel terrain dynamics at on-the-go condition.

Table of Contents


Chapter 1. Introduction to Off-road Vehicles

Off-road and on-road vehicles are two major subclasses of unguided ground vehicles which can freely traverse over ground usually by a driver if they are not controlled through programming and artificial intelligence.
Hamid Taghavifar, Aref Mardani

Chapter 2. Wheel and Terrain Interaction

In wheel-terrain interaction, there are a diversity of influential factors that play a substantial role in the output of the system. Given that the attention of this book is more on the effect of terrain on vehicle performance and mobility index, the effect of environment (terrain) characteristics on wheel should be well covered since the wheels are the unique connections between the ground and the vehicle and nearly all forces and moments applied to the vehicle are transmitted through the wheels.
Hamid Taghavifar, Aref Mardani

Chapter 3. Performance of Off-road Vehicles

Vehicle performance refers to the science of motioning of the vehicle in terms of transient performance (e.g. acceleration, braking, cornering) and those of steady-state performance criteria such as (power driveline losses, gross and net traction, vehicle aerodynamics).
Hamid Taghavifar, Aref Mardani

Chapter 4. Energetic Perspective of Off-road Vehicle Mobility

Energy flow analysis in off-road vehicles is of primary subjects in energetic analysis of off-road vehicles. One should bear in mind that the energy dissipation in off-road vehicles is more significant than on-road vehicles due to the size of these vehicles and difficult operating condition of off-road vehicles. Rolling resistance, suspension system, tires, and brake system are the main sources of energy dissipation in off-road vehicles and steps should be taken to recapture the dissipated energy.
Hamid Taghavifar, Aref Mardani

Chapter 5. Application of Artificial Intelligence on Modeling and Optimization

Modeling and optimization are two dynamic fields of studying interest for engineers and researchers in a variety of disciplines from science to engineering. Modeling is a process in which a process or phenomenon is predicted with adoption of the trend or a code of response from the system that is under investigation. When data on the problem are available, it is possible to extract a model (mathematical, statistical, numerical, etc.) based on which the prediction in a similar condition or a defined situation is predictable.
Hamid Taghavifar, Aref Mardani

Chapter 6. Applied Problems

Consider a running crawler tractor on a) smooth rigid surface and b) sloped surface as shown in Fig. 6.1.
Hamid Taghavifar, Aref Mardani
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