Mechanical Vibrations

For all rotational machines, the analysis of dynamic stresses and the resulting vibrations is an important subject. When it comes to helicopters and piston engines, this analysis becomes crucial. From the design of parts working under stress to the reduction of the vibration levels, the success of a project lies mainly in the hands of the dynamicists.

The authors have combined their talents and experience to provide a complete presentation on the issues involved. Part one describes, in concrete terms, the main dynamic phenomena and how they can be observed in reality. Part two presents information about the modeling methods required to understand the dynamic phenomena and develop solutions capable of eliminating the most serious effects.

Foreword.

Preface.

Part 1: Sources of Vibrations.
Chapter 1. Unbalance and Gyroscopic Effects.

Chapter 2. Piston Engines.

Chapter 3. Dynamics of a Rotor.

Chapter 4. Rotor Control.

Chapter 5. Non-homokinetic Couplings.

Chapter 6. Aerodynamic Excitations.

Part 2: Vibration Monitoring Systems.
Chapter 7. Suspensions.

Chapter 8. Self-tuning Systems.

Chapter 9. Active Suspensions.

Chapter 10. Absorbers.

Chapter 11. Self-adjusting Absorbers.

Chapter 12. Active Absorbers.

Chapter 13. Resonators.

Chapter 14. Self-adapting Resonators.

Chapter 15. Active systems.

Bibliography.

Index.

Tomasz Krysinski is a dynamics specialist and Head of the Vibration and Internal Noise Department at Eurocopter.

François Malburet is an Associate Professor at ENSAM, Aix-en-Provence, France.

For all rotational machines, the analysis of dynamic stresses and the resulting vibrations is an important subject. When it comes to helicopters and piston engines, this analysis becomes crucial. From the design of parts working under stress to the reduction of the vibration levels, the success of a project lies mainly in the hands of the dynamicists.

The authors have combined their talents and experience to provide a complete presentation on the issues involved. Part one describes, in concrete terms, the main dynamic phenomena and how they can be observed in reality. Part two presents information about the modeling methods required to understand the dynamic phenomena and develop solutions capable of eliminating the most serious effects.