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Mechanical Instability.
This book presents a study of the stability of mechanical systems, i.e. their free response when they are removed from their position of equilibrium after a temporary disturbance. After reviewing the main analytical methods of the dynamical stability of systems, it highlights the fundamental differe...
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London :
Wiley,
2013.
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| Colección: | ISTE.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Cover; Title Page; Copyright Page; Table of Contents; Foreword; Preface; Chapter 1: Notions of Instability; 1.1. Introduction; 1.1.1. Lyapunov's Direct Method; 1.1.2. Lyapunov's Indirect Method; 1.2. Comparison of Notions of Resonance and Instability; 1.2.1. Notion of Resonance; 1.2.2. Notion of Instability; 1.3. Instability Due to Self-Sustained Excitation; 1.3.1. Multiple-Degree-of-Freedom Systems; 1.3.2. Single-Degree-of-Freedom System; 1.4. Parametric Instability; 1.4.1. General Case; 1.4.2. Mathieu's Equation; 1.4.3. Typical Application.
- 1.5. Summary of Methods Used to Ensure or Increase the Stability of a System1.5.1. Notion of Degrees of Stability; 1.5.2. Main Corrector Systems; Chapter 2: Rotor/Structure Coupling: Examples of Ground Resonance and Air Resonance; 2.1. Introduction to Ground Resonance; 2.2. Ground Resonance Modeling; 2.2.1. Minimum Degree-of-Freedom Model; 2.2.2. Stability Criteria; 2.2.3. Energy Analysis; 2.3. Active Control of Ground Resonance; 2.3.1. Active Control Algorithm; 2.3.2. Performance Indicators; 2.3.3. Implementation of Active Control; 2.4. Air Resonance; 2.4.1. Phenomenon Description.
- 2.4.2. Modeling and Setting Up Equations2.4.3. Active Control of Air Resonance; Chapter 3: Torsional System: Instability of Closed-Loop Systems; 3.1. Introduction; 3.2. Governing Principle; 3.2.1. History and Sizing of Flyball Governor; 3.2.2. Simple Mathematical Sizing Criterion; 3.2.3. Physical Analysis of Criterion and Effect of Parameters; 3.3. Industrial Cases; 3.3.1. Case of Airplane With Variable-Setting Angle Propeller Rotor; 3.3.2. Case of Tiltrotor Aircraft; 3.3.3. Case of Helicopter; Chapter 4: Self-Sustaining Instability for Rotating Shafts.
- 4.1. Introduction to Self-Sustaining Instability4.2. Modeling of Effect of Internal Damping on Rotating Systems; 4.2.1. Instability Origins; 4.2.2. Highlighting Instability; 4.2.3. Stability Criterion for a Flexible Shaft; Chapter 5: Fluid-Structure Interaction; 5.1. Introduction; 5.1.1. Fluid-Structure Interaction Issues; 5.1.2. Instability and Energy Analysis; 5.1.3. Brief Description of Flutter; 5.2. Flutter of an Airfoil in an Airstream; 5.2.1. Setting Up Equations; 5.2.2. Industrial Examples; 5.3. Whirl Flutter; 5.3.1. Introduction to Convertible Aircraft Case.
- 5.3.2. Enhanced Convertible Aircraft Rotor Reed's Modeling
- Stability5.3.3. Whirl Flutter Active Control: Case of Tilt Rotor; Bibliography; Index.