Mechanics of Automobiles

1st Edition - January 1, 1964
Author: H. E. Barnacle
Language: English
eBook ISBN:
9 7 8 - 1 - 4 8 3 2 - 1 4 5 8 - 0

Mechanics of Automobiles deals with the application of the basic theory of mechanics to certain problems arising from the motion of an automobile. This book is composed of 11… Read more

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Mechanics of Automobiles deals with the application of the basic theory of mechanics to certain problems arising from the motion of an automobile. This book is composed of 11 chapters and begins with an evaluation of various aspects of vehicle performance and brakes. The next chapters deal with other vehicle components, including dry friction clutches, gear box, non-axial shafts, cams, and valve gears. The remaining chapters discuss the balance of reciprocating engines, the different types of suspension and steering, the gyroscopic effects, and the role of vibrations in vehicles. This book will prove useful to research engineers, designers, and draftsmen employed in the automobile industry, as well as to higher and advanced level mechanical engineering students.

Preface

Chapter One Vehicle Performance: Linear Inertia

1.1. Acceleration and Inertia

Worked Example

1.2. Resistances to Motion

Worked Examples

Examples

Chapter Two Vehicle Performance: Linear and Angular Inertia

2.1. Torque to Angularly Accelerate a Body

2.2. Moment of Inertia

2.3. Inertia of a Simple Gear Train

Worked Examples

2.4. Gear Ratio for Maximum Acceleration

Worked Example

2.5. Measurement of Rolling and Air Resistance

Examples

Chapter Three Vehicle Braking and Brakes

3.1. Vehicle Braking

3.2. Braking of a Vehicle: Straight Motion

Worked Examples

3.3. Braking of a Vehicle: Motion in a Curve

Worked Example

3.4. Internal Expanding Shoe Brakes

3.5. Pressure Between Lining and Drum

3.6. Calculations of Brake Torque with Pivoted Shoes

Worked Example

3.7. Graphical Determination of Braking Torque

Worked Example

3.8. Other Constructions

3.9. Disc Brakes

Examples

References

Chapter Four Dry Friction Clutches

4.1. Single Plate Clutch

Worked Examples

4.2. Multi-Disc Clutches

Examples

Chapter Five Gear Box

5.1. Simple Epicyclic Gear. Velocity Ratios

Worked Examples

5.2. Compound Epicyclic Gear. Velocity Ratios

Worked Example

5.3. Transmission of Power and Equilibrium of Epicyclic Gear

Worked Examples

5.4. Torque to Accelerate and Energy of an Epicyclic Gear Train

Worked Examples

Examples

Chapter Six Couplings Between Non-Axial Shafts

6.1. Universal Joint (Hooke's): Angular Displacement and Velocity

6.2. Constant Velocity Ratio Using Double Hooke's Joint

6.3. Angular Acceleration of a Hooke's Joint

Worked Examples

Examples

Chapter Seven Balance of Reciprocating Engines

7.1. Out of Balance Forces and Couples Due to the Reciprocating Engine Parts

7.2. Vector Representation of Unbalanced Forces and Couples

Worked Examples

7.3. Method of Direct and Reverse Cranks

Worked Examples

Examples

Chapter Eight Cams and Valve Gear

8.1. Displacement, Velocity and Acceleration of Cam Follower

Worked Examples

8.2. Inertia Effects

Worked Examples

Examples

Chapter Nine Suspension, Steering and Tyres

9.1. Types of Suspension

9.2. Roll Centres for Four Bar Suspension

9.3. Roll Centres for Sliding Rod Suspension

9.4. Change of Track

9.5. Steering Interference

9.6. Simple Wheel Steering Angles

9.7. Castor, Camber and Alignment

9.8. Tyre-Road Forces and Couples

9.9. Rolling Resistance

9.10. Slip Angle, Cornering Force and Self-Aligning Torque

9.11. Steering and Slip Angles

Chapter Ten Gyroscopic Effects

10.1. Angular Momentum and Velocity Vectors

10.2. Gyroscopic Action of a Rotating Disc Using Momentum Vectors

Worked Examples

Examples

Chapter Eleven Vibrations

11.1. Vehicle Ride Vibrations with Single Degree of Freedom

Simple Natural Vibrations

Forced Undamped Vibrations

Worked Example

Forced Damped Vibrations

Worked Example

11.2. Vibrations Due to Engine Unbalance

Forced Damped Motion of Engine Mass

Worked Examples

Transmissibility of Engine Mounting

Worked Example

11.3. Vehicle Ride Vibrations with Two Degrees of Natural Freedom

Frequency and Amplitude of Natural Undamped Vibration

Coupling of Natural Vibrations

Instantaneous Centres for Natural Vibrations

11.4. Impedance Method

11.5. Torsional Vibrations of Engine and Transmission

The Vibrating System

Torsional Vibrations of Two Rotor System

Worked Example

Torsional Vibrations of the Three Rotor System

Worked Example

Holtzer Tabulation Method for Torsional Vibrations

Worked Example

Critical Speeds and Phase Diagrams

Torsional Dampers and Absorbers

Viscous Torsional Damper

Undamped Vibration Absorber

Torsional Vibrations of a Simple Gear Train

Worked Example

Examples