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2014 | Buch

Tire and Rim Fundamentals Kapitel lesen Erstes Kapitel lesen

Vehicle Dynamics

Theory and Application

verfasst von: Reza N. Jazar

Verlag: Springer New York

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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Über dieses Buch

This textbook is appropriate for senior undergraduate and first year graduate students in mechanical and automotive engineering. The contents in this book are presented at a theoretical-practical level. It explains vehicle dynamics concepts in detail, concentrating on their practical use. Related theorems and formal proofs are provided, as are real-life applications. Students, researchers and practicing engineers alike will appreciate the user-friendly presentation of a wealth of topics, most notably steering, handling, ride, and related components.

This book also:

Illustrates all key concepts with examples

Includes exercises for each chapter

Covers front, rear, and four wheel steering systems, as well as the advantages and disadvantages of different steering schemes

Includes an emphasis on design throughout the text, which provides a practical, hands-on approach

Inhaltsverzeichnis

Frontmatter
1. Tire and Rim Fundamentals
Abstract
Tires are the only component of a vehicle to transfer forces between the road and the vehicle. Tire parameters such as dimensions, maximum load-carrying capacity, and maximum speed index are usually indicated on its sidewall. In this chapter, we review some topics about tires, wheels, roads, vehicles, and their interactions.
Reza N. Jazar

Vehicle Motion

Frontmatter
2. Forward Vehicle Dynamics
Abstract
Straight motion of an ideal rigid vehicle is the subject of this chapter. We ignore air friction and examine the load variation under the tires to determine the vehicle’s limits of acceleration, road grade, and kinematic capabilities.
Reza N. Jazar
3. Tire Dynamics
Abstract
The tire is the main component of a vehicle interacting with the road. The performance of a vehicle is mainly influenced by the characteristics of its tires. Tires affect a vehicle’s handling, traction, ride comfort, and fuel consumption. To understand its importance, it is enough to remember that a vehicle can maneuver only by longitudinal, vertical, and lateral force systems generated under the tires.
Reza N. Jazar
4. Driveline Dynamics
Abstract
The maximum achievable acceleration of a vehicle is limited by two factors: maximum torque at driving wheels, and maximum traction force at tireprints. The first one depends on engine and transmission performance, and the second one depends on tire-road friction. In this chapter, we examine engine and transmission performance.
Reza N. Jazar

Vehicle Kinematics

Frontmatter
5. ⋆ Applied Kinematics
Abstract
Position, velocity, and acceleration are called kinematics information. Rotational position analysis is the key to calculate kinematics of relatively moving rigid bodies. In this chapter, we review kinematics and show applied methods to calculate the relative kinematic information of rigid bodies. A vehicle has many moving sub-systems such as suspensions, and the vehicle can be treated as a moving rigid body in an inertia coordinate frame.
Reza N. Jazar
6. Applied Mechanisms
Abstract
The mechanisms that are used in vehicle subsystems are mostly made of four-bar linkages. Double A-arm for independent suspension, and trapezoidal steering are two subsystems examples in vehicle. In this chapter, we review the analysis and design methods for such mechanisms.
Reza N. Jazar
7. Steering Dynamics
Abstract
To maneuver a vehicle we need a steering mechanism to turn steerable wheels. Steering dynamics which we review in this chapter, introduces the requirements and challenges to have a steering system to guide a vehicle on non-straight paths.
Reza N. Jazar
8. Suspension Mechanisms
Abstract
The suspension is what links the wheels to the vehicle chassis and allows relative motion. This chapter covers the suspension mechanisms, and discusses the possible relative motions between the wheel and the vehicle chassis. The wheels, through the suspension linkage, must propel, steer, and stop the vehicle, and support the associated forces.
Reza N. Jazar

Vehicle Dynamics

Frontmatter
9. ⋆ Applied Dynamics
Abstract
Dynamics of a rigid vehicle may be considered as the motion of a rigid body with respect to a fixed global coordinate frame. The principles of Dynamics as well as Newton and Euler equations of motion that describe the translational and rotational motion of the rigid body are reviewed in this chapter.
Reza N. Jazar
10. Vehicle Planar Dynamics
Abstract
In this chapter we develop a dynamic model for a rigid vehicle in a planar motion. The planar model is applicable whenever the forward, lateral and yaw velocities are important and are enough to examine the behavior of a vehicle.
Reza N. Jazar
11. ⋆ Vehicle Roll Dynamics
Abstract
In this chapter, we develop a dynamic model for a rigid bicycle vehicle having forward, lateral, yaw, and roll motions. The model of a rollable rigid vehicle is more exact and more effective compared to the rigid bicycle vehicle planar model. Using this model, we are able to analyze the roll behavior of a vehicle as well as its maneuvering.
Reza N. Jazar

Vehicle Vibration

Frontmatter
12. Applied Vibrations
Abstract
Vibration is an inevitable phenomena in vehicle dynamics. In this chapter, we review the principles of vibrations, analysis methods, and their applications, along with the frequency and time responses of vibrating systems. Special attention is devoted to frequency response analysis, because most of the optimization methods for vehicle suspensions and vehicle vibrating components are based on frequency responses.
Reza N. Jazar
13. Vehicle Vibrations
Abstract
Vehicles are multiple-DOF systems as is shown in Figure 13.1. The vibration behavior of a vehicle, which is called ride or ride comfort, is highly dependent on the natural frequencies and mode shapes of the vehicle. In this chapter, we review and examine the applied methods of determining the equations of motion, natural frequencies, and mode shapes of different models of vehicles.
Reza N. Jazar
14. Suspension Optimization
Abstract
In this chapter, we examine a linear one degree-of-freedom (DOF) base excited vibration isolator system as the simplest model for a vibration isolator and vehicle suspension. Based on a root mean square (RMS) optimization method, we develop a design chart to determine the optimal damper and spring for the best vibration isolation and ride comfort.
Reza N. Jazar
15. ⋆ Quarter Car Model
Abstract
The most employed and useful model of a vehicle suspension system is a quarter car model, shown in Figure 15.1. We introduce, examine, and optimize the quarter car model in this chapter.
Reza N. Jazar
Backmatter
Metadaten
Titel
Vehicle Dynamics
verfasst von
Reza N. Jazar
Copyright-Jahr
2014
Verlag
Springer New York
Electronic ISBN
978-1-4614-8544-5
Print ISBN
978-1-4614-8543-8
DOI
https://doi.org/10.1007/978-1-4614-8544-5

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