Contents

Preface

Aeroelasticity: An Overview

Abstract

1. Introduction

1.1. Static Aeroelasticity

1.2. Dynamic Aeroelasticity

1.3. History

2. Aerodynamic Models

2.1. Reduced Frequency

2.2. Steady Aerodynamic Models

2.3. Quasi-Steady Aerodynamic Model

2.4. Unsteady Aerodynamic Model

2.4.1. Wagner’s Effect

2.4.2. Theodorsen’s Aerodynamic Model

3. Bending Torsion Flutter

3.1. Binary Flutter Model

4. Wind Tunnel Test

5. Flight Flutter Test

6. Flutter Suppression

6.1. Active Flutter Suppression

7. Common Practices and State-of-the-Art Materials

Conclusion

Acknowledgement

References

Nanocomposites in Aerospace Structures

Abstract

1. Introduction

2. Matrix

2.1. Ceramic

2.2. Metal

2.3. Polymer

3. Nano-Reinforcements and Nano-Fillers

3.1. Carbon Nanotubes (CNTs)

3.2. Graphene

4. Nanocomposites

5. Hierarchical Composites

6. Application of Nanocomposites in Aerospace

6.1. Enhanced Structural Properties

6.2. Thermal Stability

6.3. Electrical Properties

Conclusion

References

Fire Structural Behavior of Aerospace Composites

Abstract

1. Background

2. Composites in Fire

3. Fire Reaction and Fire Resistance of Composites

4. Thermal Response of Composites

5. Composites in Fire under Tensile Loading

6. Composites in Fire under Compressive Loading

Conclusion

References

The Implementation of Biofuel in Aircraft Engines

Abstract

1. Introduction

2. Need for Biofuels

3. Challenges

4. Feedstock and the Production Process of Jet Fuel

4.1. Processes to Produce Bio-Kerosene

4.1.1. Alcohol-to-Jet (ATJ) Fuel

4.1.2. Oil-to-Jet (OTJ) Fuel

4.1.3. Gas-to-Jet (GTJ) Fuel

4.1.4. Sugar-to-Jet Fuel

5. Effect of Fuel Properties on Emission Generation

6. Compatibility of Biofuel with the Aircraft Engine

Conclusion

Acknowledgments

References

Aircraft Mission Profile Analysis and Trajectory Optimization

Abstract

1. Introduction

2. Classification of UAS Platforms

2.1. Micro (or Miniature) Air Vehicles (MAVs) or Nano Air Vehicles (NAVs)

2.2. UAS with Vertical Takeoff and Landing (VTOL)

2.3. Low-Altitude, Short-Endurance (LASE) and Low-Altitude, Long-Endurance (LALE) UAS

2.4. Medium-Altitude, Long-Endurance (MALE) UAS

2.5. High-Altitude, Long-Endurance (HALE) UAS

3. Desired Flight Maneuvers

3.1. Efficient Cruise

3.2. Minimum Sink Soaring

3.3. Direction Reversal

3.4. Minimum Radius Turn

3.5. Steepest Descent

3.6. Maximum Speed Dash

4. Trajectory Optimization

5. Optimization Yielding Desired Flight Maneuvers

6. Applications of Trajectory Planning and Optimization

6.1. Minimizing Environmental Effects

6.2. Aerobatic Air Race

6.3. Collision Avoidance and Hazardous Terrains

6.4. Air Traffic Management

Conclusion

References

Controller Design for a Hybrid UAV

Abstract

1. Introduction

2. Coordinate Frames

3. Hardware Configurations

4. Mathematical Modeling

5. Brushless Motor Model

6. System Linearization

7. System Input

8. Other Parameters

9. Noise Filtering

10. Effect of PID Tuning

11. Effect of Noise Filtering

12. Validation

Conclusion

References

Magnetic Attitude Control of a Small Satellite

Abstract

1. Introduction

2. Satellite Actuators

2.1. Thrusters

2.2. Momentum Exchange Devices

2.3. Magnetic Torquers

3. Magnetic Attitude Control Technique

3.1. Linear Control Technique

3.2. Nonlinear Control Technique

4. Gravity-Gradient Satellite

4.1. Single Magnetic Torquer

4.2. Three Magnetic Torquers

5. Momentum-Bias Satellite

5.1. Double Magnetic Torquers

5.2. Three Magnetic Torquers

Conclusion

References

CubeSat Technology in Satellite Development

Abstract

1. Introduction

2. CubeSat Systems

2.1. Power System

2.2. Structure and Mechanism

2.3. ADCS

2.4. Onboard Data Handling Systems (OBDH)

2.5. Communications

2.6. Thermal

3. CubeSat Capabilities

Conclusion

References

Ionosphere Perturbation Modeling in an Equatorial Region through Electromagnetic Wave Propagation

Abstract

Introduction

Equatorial Ionization Anomaly (EIA)

Seismo–Ionospheric Coupling

Pre-Seismic Emissions

Acoustic Gravity Waves

Electromagnetic Wave Propagation

Electromagnetic Wave Modeling

Conclusion

References

Computer Simulation of Membrane Airfoil with Fluid/Structure Interaction

Abstract

1. Introduction

2. Computational Approach

2.1. Displacement and Stress Analysis Setup

2.2. Time Step-Dependent Solution

2.3. Mesh-Dependent Solution

2.4. Mathematical Model

3. Laminar Separation Bubble (LSB)

3.1. Effect of Angle of Attack

3.2. Effect of Reynolds Number

3.3. Lift and Drag Performance

Conclusion

References

About the Editors

Index

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