(N.W.)

This specialist work is an A-Z of flywheel systems and while extending well beyond the automotive spectrum is worthy of comment in the light of recent interest in on-board energy storage and regeneration systems. Advanced engineering and computer analysis techniques provided allow total system prediction and is a worthy record of Dr Genta's valuable work carried out at Turin Polytechnic.

 (Automotive Engineer)

Indice

Preface

Symbols

1   Historical background

1.1   Philosophers and flywheels

1.2   From prehistory to Roman civilization

1.3   From the beginning of the Christian Era to the lndustrial Revolution

1.4   The Industrial Revolution

1.5   From the middle of the 19th Century to 1960

1.6   High performance flywheels or `superflywheels'

1.7   Future developments

2   Application of flywheel energy storage sY stEmS

2.1   Basic parameters and definitions

2.2   Advantages and disadvantages

2.3   Some economic considerations

2.4   Road vehicle applications

2.5   Other vehicles

2.6   Gyroscopic moments due to flywheels aboard vehicles

2.7   Applications for fixed machines

3   The flywheel

   3.1 Introduction

   3.2 Materials for flywheels

   3.3 Failure criteria

   3.4 Rotor stress analysis

3.4.1 Load conditions

3.4.2 Tri-dimensional approach

3.4.3 Axisymmetrical flywheels

3.4.4 Plane stress or plane strain state

3.4.5 One dimensional calculation of the stress field

3.4.6 Specialized approaches

3.5  Isotropic flywheels

3.5.1 Disc flywheels

3.5.2 Rim-with-spokes flywheels

3.5.3 Isotropic subcircular flywheels

3.6   Radial bar and filament flywheels

3.7   Composite material rim flywheels

3.8   Composite material disc flywheels

3.9   Variable-inertia flywheels 

3.10 Other types of flywheels

3.11 Flywheel testing

3.11.1 Non destructive evaluation

3.11.2 Spin testing

3.11.3 Measurement of the moment of inertia

4   The housing and vacuum system

4.1   Introduction

4.2  Aerodynamic drag on flywheels

4.3  Aerodynamic heating

4.4   The vacuum system

4.5   The seals

4.6   Burst containment

5   Flywheel suspension system

5.1   Types of bearings

5.2   Ball bearings

5.3   Magnetic bearings

5.4   Some topics in rotor dynamics

        5.4.1 Introduction

        5.4.2 Critical speeds

        5.4.3 Whirl motions

        5.4.4 Effect of damping

        5.4.5 Multibody systems

        5.4.6 Rotor balancing

        5.4.7 Torsional vibrations

5.5   Dampers

6   Transmission systems

6.1   Types of transmission for flywheel systems

6.2   Mechanical transmissions

6.3   Electrical transmissions

6.4    Hydrostratic transmissions

7   A look to the future

7.1 An integrated design approach

7.2 Development possibilities

Bibliography

Appendices: Computer programs